1. Fifth Wheel King Pin
  2. Reese
  3. 663
  4. 665
  5. 0719
  6. 1621
  7. 1621HD
  8. 663
  9. 665
Sidewinder 5th Wheel King Pin with Rotating Turret - 16,000 lbs

Sidewinder 5th Wheel King Pin with Rotating Turret - 16,000 lbs

Item # RP61420
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Our Price: $1,246.97
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Fifth Wheel King Pin
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Shipping Weight: 149 lbs
RP61420 - Provides Turning Clearance Reese Pin Box Upgrade
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This premium fifth-wheel pin box coupler replaces your trailer's king pin for worry-free turning with short-bed pickups. Now you can make up to 90-degree turns without having to exit the truck, throw a switch or push a button. Call 800-298-8924 to order Reese fifth wheel king pin part number RP61420 or order online at etrailer.com. Free expert support on all Reese products. Guaranteed Lowest Price and Fastest Shipping for Sidewinder 5th Wheel King Pin with Rotating Turret - 16,000 lbs. Fifth Wheel King Pin reviews from real customers.
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  • Reviews (34)
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Reese Fifth Wheel King Pin - RP61420

  • 663
  • 665
  • 0719
  • 1621
  • 1621HD
  • 663
  • 665
  • Fabex
  • Lippert
  • M and M
  • Provides Turning Clearance
  • Reese
  • 16000 lbs GTW
  • Pin Box Upgrade
  • Non-Cushioned
  • Rotating Turret

This premium fifth-wheel pin box coupler replaces your trailer's king pin for worry-free turning with short-bed pickups. Now you can make up to 90-degree turns without having to exit the truck, throw a switch or push a button.


  • 5th-Wheel trailer's pivot point is moved an extra 22" toward the rear of your tow vehicle so that you can easily make 90-degree turns, even with a short-bed pickup truck
    • No need to get out of your truck, throw a switch, push a button or mount a 5th-wheel slider
    • Trailer tracks more closely to the truck for better driveability
  • Sidewinder-and-turret assembly bolts onto your 5th-wheel trailer pin box
  • King pin connects to standard 5th-wheel trailer hitch and allows easy hookup and disconnect at any angle
  • Included locking wedge prevents king pin from rotating
    • Some 5th-wheel hitches may require custom wedge (sold separately)
  • 1-Piece, streamlined construction
  • C-Channel design of the Sidewinder provides more stability and strength than standard pin box
    • Able to support heavier loads


  • Designed for use with the following pin boxes:
    • Fabex 663 and 665
    • Lippert 0719, 1621 and 1621HD
    • M&M 663 and 665
  • Weight capacity: 16,000 lbs
  • Clearance: see formula below to ensure proper clearance
  • 3-Year limited warranty

Clearance Formula

Use the formula below to ensure that there will be enough space between your truck cab and trailer when you are executing a 90-degree turn with the Sidewinder installed.

(A + B) - C = Clearance

A = Distance from center of 5th-wheel hitch jaw to truck cab in inches

B = Length of Sidewinder arm in inches (22")

C = Width of trailer in inches divided by 2

For example:

If you are using the 16,000-lb Sidewinder, then B = 22"

If the distance from the center of your hitch to your truck's cab is 36", then A = 36"

And if your fifth-wheel trailer is 102" wide, then C = 51"

102/2 = 51


(36 + 22) - 51 = 7" of clearance

The Sidewinder

Sidewinder Diagram
  1. The pivot point sits 22" behind the king pin.
  2. The rotating turret attaches to the pin box on your trailer to provide the new pivot point.
  3. The reversible, adjustable king pin locking wedge (not pictured) prevents pivot at the 5th-wheel hitch.
  4. The king pin connects to the 5th-wheel trailer hitch in your truck bed.
  5. The arm is rated at 16,000 lbs.

Up to 90-Degree Turning

90 Degree Turns with Sidewinder

It is now possible to turn your short-bed truck 90 degrees without having to worry that your trailer will collide with the cab of your truck. The universal king pin locking wedge included with this Sidewinder prevents your trailer from turning or pivoting at the fifth-wheel hitch. Instead, the rotating turret at the end of the Sidewinder allows turning and pivoting to take place an additional 22 inches away from the cab.

King Pin Locking Wedge Locations for Specific Hitches

Sidewinder Locking Wedges

1. Draw-Tite, Hidden Hitch and Reese (15K, 16K and 20K Select Series); Husky; Owens; Valley; and similar units

2. Reese Signature Series, Elite Series and similar units

3. Holland and similar units

A. Bolt locations

B. King pin

Custom King Pin Locking Wedges: The included universal wedge prevents the king pin from rotating in most fifth-wheel trailer hitches. Certain hitches, however, require a custom wedge (sold separately).

Note: Do not use the Sidewinder with any of the following:

  • Curt Q Series 5th-wheel trailer hitches
  • PullRite SuperGlide 5th-wheel trailer hitch
  • Reese Trail Boss 5th-wheel trailer hitch
  • B&W Companion 5th-wheel trailer hitches that mount in the Turnoverball gooseneck hole
  • Colibert 208BW 5th-wheel trailer hitch
  • Hi-Rise gooseneck-to-5th-wheel adapter by Draw-Tite, Hidden Hitch, Bulldog and Reese
  • Any other gooseneck-to-5th-wheel adapter

Note: All Pro Series fifth wheel hitches with slide bar jaw require use of Sidewinder Wedge Kit for Pro Series (30850 - sold separately).

61420 (SW16K and 61300) Fifth Airborne Side Winder Fifth-Wheel Pin Box Coupler with Turret and Hardware

Replaces ST200-SW16K

Installation Details RP61420 Installation instructions

Video of Sidewinder 5th Wheel King Pin with Rotating Turret - 16,000 lbs

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Reese Sidewinder with Rotating Turret Installation

Today on this fifth wheel camper, we'll be removing the old pin box and installing a new turret and Sidewinder from Reese, product number RP61420. As we said earlier, before we can install our new turret, we have to remove the old pin box. To do that, we'll remove these four bolts on both sides. However, we also have to remove this breakaway switch and trailer wiring before we can remove the pin box. Bolts simply unscrew from their current positions. With all of our electrical components removed, we can remove our four fasteners.

As you can see, we've already removed two fasteners for now. We're going to use a pallet and a fork truck to take it away from the pin box so it's safer to remove the final fasteners. In this case, we'll be using a pry bar to help with the removing of the pin box. With that removed, we will lower the pallet and proceed to assembling the turret. First thing to do is remove the wedge from the bottom of the Sidewinder.

It will line up here with the king pin where we'll tighten it down into position later so there will be no lateral movement with our Sidewinder. Before we set up the turret into the Sidewinder, we're going to take some of the white lithium grease or a spray lubricant. Just hit the top of the Sidewinder just to make it easier to slide our turret on. Once that's in place, we'll install the plastic disc, then well set our top plate and bolt it on. We'll be installing the four 5/8 bolts and lock washers.

With all fasteners installed finger tight, I'm going to use a ratchet to tighten them down, then I'll torque them to specifications as indicated in the instructions. Now that all components are properly installed we can install the turret and Sidewinder into our camper using out truck and pallet. To install the turret, we'll be using these bolts with the flat washers on the outside and the conical tooth washer and nut on the inside. Once those are in place, we'll tighten them down. We will lower the pallet, then torque the specifications.

Next, we'll reinstall our electrical box and breakaway switch. Now that the Sidewinder is installed, the next thing we need to do is hook up the truck to the camper and tighten our wedge near the king pin. We have the wedge tight enough so that it cannot be moved by hand but we'll still be able to use a mallet. Now, we'll back up our vehicle into place and lock down the king pin. We will have to take a mallet to knock the wedge into position. We'll first snug down the bolt we can reach that will hold the wedge in position, while we pull the truck away and tighten down the other bolt. Now, we can torque the bolts to specifications. With that, our Sidewinder is ready to go. We'll hook the truck back up and take it for a test spin to see how it works. As you can see, when it turns, the turret is doing all the turning while the Sidewinder stays in a stationary position due to the wedge. And there you have it for the Reese Turret and Sidewinder installed on our 5th Wheel camper, product number RP61420.

Customer Reviews

Sidewinder 5th Wheel King Pin with Rotating Turret - 16,000 lbs - RP61420

Average Customer Rating:  4.6 out of 5 stars   (34 Customer Reviews)

This premium fifth-wheel pin box coupler replaces your trailer's king pin for worry-free turning with short-bed pickups. Now you can make up to 90-degree turns without having to exit the truck, throw a switch or push a button.

- RP61420

Great product this sidewinder did the job for me and as for etrailer.com shipping was was great called one day the next day if was at my door....... thank you ... 444668

- RP61420

I called to verify what a local RV dealer had informed and tried to sell me. E trailer customer service was great. I submitted my order and in the specified time it arrived as presented. I inspected all of the boxes to confirm all parts were accounted for. Everything was still in the boxes even though they were abused badly in shipment (carrier damage). I will be having it installed in a week. Can't say enough about the quality of the product and customer service. 503333

- RP61420

Thank you Donna for all your help using the formula to identify the right Reese Sidewinder Pinbox, and even when our call was disconnected, you called me back, plus you letting the customer know prices fluctuate and can change within 30 days. Even though I paid a higher price as purchase time, in the end, I actually got the ideal price I wanted from the beginning, but couldn't have done it without you informing me. Now that everything is complete, I am a happy camper, ready to go travel. You are valuable asset to the company. Thanks again so much for your assistance! Dana R., Texas 569569

- RP61420

The items were packaged well and did not have a scratch on anything. All hardware was included. I am impressed how wel this unit is built. It is built with much heavier metal than the stock pin box that came off, which is reassuring to me. I was able to install this using a table, some blocks and a floor jack without additional help, but it would probably be quicker if additional help were available. This will definitely give me peace of mind when traveling and make it one less thing to worry about when turning/backing. Great product and service. 187953

The Sidewinder is working great. The short turning radius is a plus in addition to peace of mind that it wont be hitting the cab of the truck if I have to make a sharp turn. Im glad I got this instead of the sliding hitch.
Randy - 04/23/2016


- RP61420

Overall the product was very good and well built. They only problem I had was during installation, there were weld spatter through out the bearing surfaces. Once I cleaned that out, I was very happy with how the trailer pulled and handled. 520252

- RP61420

Very nice pin box. Does what was advertised. Creaks when I first start to leave with the fifth wheel. Best aftermarket product I have found, it really shortens the turning radius , and It stays at the angle you parked, that helps when you hitch up in tight areas. 625494

- RP61420

Great solution to short bed trucks. However, I have been able to prevent the hitch from binding at slow speeds. It is not enough to prevent movement but it pops with enough force to shake the truck. I have leveled the trailer but the binding remains. 596167

Sometimes the noise and binding can be caused by failure to routinely lubricate the sidewinder. I have attached a link that will help with lubrication maintenance.
-- Heather A - 02/01/2019


- RP61420

Easy to put together and install the sidewinder kingpin box and fifth wheel hitch brackets were also easy to install on my 16 Ram 2500 thanks for fast delivery great costomer service and parts 380678

- RP61420

The "wedge" block that changes the pivot point on the fifth wheel it makes the camper very difficult to hook up to unless you back in at the exact same position as when you unhitched. Even still it does not allow the jaws to close completed without repeatedly trying. This is not a product I would recommend. 258254

- RP61420

Great customer service and quick shipping from Etrailer. Sidewinder was very easy to assemble. One of the bolts on the turret that's partially installed at the factory had be cross threaded, but a 5/8-11 trap easily cleaned up the threads. (I'm sure Etrailer would have replaced the defective part if I had contacted them, but the fix was easy) Installation was very straight forward, but it is very heavy. At least twice as heavy as the original pin box. I installed mine by myself by using a motorcycle lift table. The Sidewinder I got was obviously designed to fit many different types of 5th wheels because it had clover leaf type bolt holes to accommodate different bolt patterns. I did have to wrestle with it a little to get the proper holes to align. I also discovered that I couldn't install it into the upper most set of holes on my 5th wheel even though my original pin box was installed there. When installed in those holes, the "ears" of the bracket on the RV would have interfered with the rotation of the Sidewinder, so I moved it down to the next set of bolt holes. The instructions do mention this requirement. I was also pleasantly surprised that my kit came with replacement hardware to attach the new pin box that is higher quality than the originals (Grade 8 vs Grade 5) We took the 5th wheel out for a test drive after the installation and I was very impressed with how easily I could make 90 degree turns with a short bed truck. I also noticed a significant positive difference in how the RV tracked behind the truck. I definitely don't have to swing as wide to make corners as I did before installing the Sidewinder. I'm very happy with the Sidewinder and the purchase through Etrailer. 546809

- RP61420

Very satisfied with the Sidewinder pin box with turret. Installation was not too difficult. We installed it on our 2005 Puma 5th wheel. The installation video was helpful. It is a little tricky hooking up as many have said but worth it. I really prefer this option over a slider hitch which were our two choices for towing with a Ram truck with 5-1/2 foot bed. The delivery was quick but the packaging was a mess. The cardboard box was all tore up form the delivery. Some other type of packaging might be better for such a heavy item. All things considered this was a good purchase. 620275

- RP61420

I ordered my RP61420 sidewinder on 5/8/17 around 4pm and received it on 5/12/17 at 2pm in good condition and complete. ( FREE SHIPPING ) We installed it on 5/13/17 following all instructions included with the sidewinder ( VERY SIMPLE ) I put it on a 2004 - 286 cougar 5th wheel trailer, being pulled by a 2010 F-150 King Ranch ( super cab) with a 5.7 short bed box. The sidewinder allows me to make a 90 degree turn, ONLY when truck and trailer are on PERFECTLY level ground and then, I only have about a 2 inch clearance between back of cab and front of trailer. Before the sidewinder my turns were very limited. The sidewinder is very well built and rated at 16000 lbs. All of the questions and answers with etrailer.com ( JARED P.) were very helpful to find what I needed with my problem of clearance between truck cab and trailer. It is TRICKY to hook up to with the wedge that locks into the 5th wheel hitch, but I think its worth it when able to make sharper turns in traffic. The Reese Sidewinder with with Rotating Turret is also hooked into a Reese 5th wheel hitch. Great products Reese, Leo C. 381609

- RP61420

At first I was skeptical about this product. But after replacing back window in my truck at the tune of $500. I installed this item. Another issue that came up was the correct wedge that I needed for it to fit my hitch. With another $60 dollar purchase (a new wedge), it fit & latched. Since then, it is possible to do a 90 degree jackknife type turn without touching tow vehicle. Not that I do those type of turns often, but it's nice to know that if necessary that's it's there. Another item to mention is, it seems to get better turns (corners) with this type K pin. No chucking, bucking or jerking. 5 STARS BABY!!! 746161

- RP61420

Fantastic option for a shorter bed. Mated to a 2019 Puma 295BHSS. I pull with a 2016 Nissan Titan XD, 6.5 foot bed. Standard king pin box limited the turning radius too much, but with this Sidewinder I've had no issues getting in or out of anywhere. I did pay an RV service place for install. They were seasoned camper pros but they hadn't worked on a Sidewinder before so it became more of a group effort. Fine by me, I like being more hands on anyway. Instructions were clear and easy to follow. As a side note, their forklift made alignment and adjustment during install a breeze. As others have stated, you do have to line up your mounting approach pretty carefully but it wasn't difficult to get the hang of. 736294

- RP61420

Having a short bed 5’7” RAM 1500, the Reese Sidewinder was the perfect answer! My 5th Wheel RV is an older model (2007), so it doesn’t have the front cab cutouts like newer models. This makes turning ‘very close’ to the pickups cab. With the Sidewinder, I really can get ‘almost’ a 90 degree turn out of everything. See the attached pictures to see how close I get to my pickups cab. If you’re 5th Wheel RV has the cutouts, you’ll probably get a full 90 degree turn! 732913

- RP61420

The cheapest way to make a 5 1/2 bed truck pull a 5th wheel ! Gives plenty of room between truck cab and trailer when turning ! Easy install too ! 718339

- RP61420

Excellent product, does what it is advertised to do. It is helpful to have at least one other person during installation. Instructions are helpful. 699069

- RP61420

Perfect! 667834

- RP61420

great product I put this on my 5th wheel camper as a replacement to allow me to turn and not make contact works great and was easy to install 665387

- RP61420

The Reese fithwheel sidewinder hitch has worked great kept me from buying a slider hitch I would give 5 stars 637929

- RP61420

Fast great service, ordered on Wednesday received on Friday. Highly recommended ! 548105

- RP61420

Product works as advertised and very fast shipping . 482551

- RP61420

Great Customer Service at all levels. These people do exactly what they say they are going to do. I spent about $1800 for my fifth wheel, rail kit, sidewinder and custom wedge. This was money well spent as everything works great. 467628

- RP61420

Received the hitch in record time, and customer service was outstanding. "1 call does it all!" should be their motto. Could not be happier. 466178

- RP61420

This product works great very safe too 428065

Show More Reviews

Ask the Experts about this Reese Fifth Wheel King Pin

  • Pin Box to Gooseneck Adapter for 2005 Wildcat 27RLWB
    Long bed trucks typically don't need any help with cab to trailer nose clearance. What made you think you'd need more clearance? And what type of gooseneck adapter were you wanting to use?
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  • Recommended 5th Wheel Hitch and Sidewinder for 2018 Toyota Tundra Crew Max with 5.5 Foot Bed
    For your 2018 Toyota Tundra Crew Max with 5.5 foot bed, there is not a sliding 5th wheel hitch compatible. A Sidewinder is required for proper turning clearance on a truck with that short a bed length. I recommend using the Reese Quick-Install Custom Installation Kit w/ Base Rails for 5th Wheel Trailer Hitches # RP50084-58 which are a custom fit for your truck. I then recommend using the Reese 5th Wheel Trailer Hitch - Dual Jaw - 16,000 lbs # RP30047 to give you a good hitch compatible...
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  • Fifth Wheel Hitch and Sidewinder Recommendation for 2017 Ram 1500 5-1/2' Bed
    The Max Turn Technology feature of your Keystone Cougar basically is a narrower nose that allows better clearance with short bed trucks. But since your truck bed is 5-1/2 feet you still would need a Sidewinder as the added clearance is not going to be quite enough. Your trailer should have a Lippert 1621 pin box so the correct Sidewinder would be the part # RP61420. I'd still recommend verifying the pin box since you didn't mention the model of your Cougar. For a fifth wheel hitch you'd...
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  • Sidewinder and Fifth Wheel Hitch Recommendation for New Ram Towing Vilano 5th Wheel
    Since your 5th wheel trailer has a Lippert 1621 pin box there is a Reese Sidewinder that will fit it as part # RP61420. This will allow a short bed truck like yours to make tight turns but you'll have to have a fifth wheel hitch installed in the factory rail kit. For that the best option is the B and W Companion hitch part # BWRVK3600 with the custom wedge part # SWW-06. This hitch with the Sidewinder will give you the best fifth wheel towing setup around! The Companion is very easy...
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  • Recommended Sidewinder & 5th Wheel Hitch For 2017 Ram Mega Cab and 2015 Forest River Vengeance 320A
    For your 2015 Forest River Vengeance 320A Super Sport model and your 2017 Ram Mega Cab with 64 inch bed, I have the solution you are seeking to ease your mind. Let's start from the beginning with rails and a hitch. If you have the factory rails, then I recommend the Curt A16 5th Wheel Trailer Hitch for Ram Towing Prep Package - Dual Jaw - 16,000 lbs # C16520-16021. If you don't have the factory pucks, then I recommend the Reese Quick-Install Custom Base Rails and Installation Kit for...
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  • Recommended 5th Wheel Towing Setup for a 2017 Ram 1500 with a 5-1/2 foot Bed
    Since your 2017 Dodge Ram 1500 has a box that is shorter than 6 feet you will actually need to go with a stationary 5th wheel hitch and then change the pin box on your trailer to a Sidewinder pin box. There are no sliding 5th wheel hitches that will allow you to make a 90 degree turn with a truck that has a box under 6 feet. The Sidewinder takes the pivot point on your towing setup and moves it from the king pin back 22 inches to the rotating pin box. We have a selection of Sidewinders...
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  • Sidewinder Pin Box Recommendation for Lippert 1716 Pin Box
    For a Sidewinder that does fit as a replacement for a Lippert 1716 we have the # RP61410 which has a 16k capacity or the part # RP61411 with a 19k capacity. Other option is the part # RP61412 which is a cushioned 16k Sidewinder. The part # RP61420 does not work for your pin box.
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  • How to Pick Out a Sidewinder Pin Box for a Keystone Springfield Trailer
    Sidewinders are pin box specific so you will first need to know what pin box you have know in order to pick out the correct one. There should be a sticker or a stamping on the OEM pin box of the trailer that will list the pin box number that is on the trailer. If you cannot find the number you can use the measurements of the bolt holes of the pin box to determine which one you have. I attached an FAQ on how to do this for you to check out also. Once you figure out which pin box...
    view full answer...
  • Correct Sidewinder for 2016 Coachmen Chaparral 336TSIK
    Yes, the Sidewinder 5th Wheel King Pin with Rotating Turret part # RP61420 will work on any trailer with a Lippert 1621 pin box. The pin boxes are not make and model specific but rather specific to the pin box's bolt pattern. This can then be used with the Curt A20 5th Wheel Trailer Hitch for Ram Towing Prep Package part # C16044 on your 2019 Ram 3500 no problem. The Sidewinder Wedge for Curt A Series 5th Wheel Trailer Hitches part # C16992 is correct for the Sidewinder 5th Wheel King Pin...
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  • Recommended Reese Sidewinder Compatible With Husky 16K 5th Wheel Hitch and 1621 Pin Box
    The Sidewinder pin box is compatible with your Husky 16K slider as long as you keep it locked in the forward position as you stated. You will want the Sidewinder 5th Wheel King Pin with Rotating Turret - 16,000 lbs # RP61420 for a standard Sidewinder to give you the 22 inches of additional turning clearance. Your other option is to upgrade that to the air ride version in the 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret - 16,000 lbs # RP61422 to reduce chucking...
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  • Can a Sliding Fifth Wheel Hitch be Used with a Sidewinder Pin Box
    You can definitely still use a Sidewinder with a sliding fifth wheel hitch. Like you mentioned, you would just leave it slid forward all the time and you would be just fine. The correct Sidewinder to use to replace your Lippert 1621 style pin box is the # RP61420. I attached an install video for this Sidewinder plus a help article on them for you to check out as well.
    view full answer...
  • Does Towing With A Reese Sidewinder/Revolution Increase The Likelihood Of Sway
    The Reese Sidewinder and Reese Revolution are the same thing, they only call the pin boxes the Revolution when they are on the trailer from the trailer manufacturer. The after market part is called a Side Winder and they are available for purchase. To choose a Sidewinder, you would need to know your pin box number to get the correct fit. We have never had anyone complain about the Sidewinder causing sway. Most customer that use a Sidewinder are impressed how the Sidewinder improves their...
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  • Can a Sidewinder Replacement Pin Box Be Used with a Curt X5 5th Wheel To Gooseneck Adapter
    The Sidewinder pin boxes are not permitted for use with any sort of 5th wheel to gooseneck adapter. The issue is that the X5 adapter is really only secured in the center gooseneck hole. Since the Sidewinder locks out pivot at the 5th wheel hitch and moves the pivot point back, it would be creating overwhelming torque and stress on the adapter and gooseneck installation kit below the truck bed. This could damage it badly and you would not be able to use the gooseneck hitch any more. It also...
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  • Weight of Sidewinder Pin Box RP61420
    The total weight of the Sidewinder part # RP61420 is 144 lbs when totally assembled.
    view full answer...
  • How to Identify Unknown Fifth Wheel Pin Box
    The manufacturer and model number of the pin box is usually printed on a sticker or stamped into a plate or directly into the metal of the pin box. If you can't find that, the manufacturer of your 5th wheel should be able to tell you which pin box you have if you provide them with the VIN. If you can't reach the manufacturer or they can't help for some reason, take a look at the FAQ article I've linked you to. The article shows you how to measure the spacing of the bolt holes in...
    view full answer...
  • Sidewinder Options to Replace a Lippert 1621 Pin Box
    There are three options for Sidewinders to replace a Lippert 1621 pin box. For a 16k rated Sidewinder we have the part # RP61420. If you need more capacity than that you would want the 19k version which is part # RP61421. The third version is an air-ride, cushioned Sidewinder that has a 16k capacity. For that you would want the part # RP61422.
    view full answer...
  • Calculating 5th Wheel Turning Clearance
    The formula to determine 5th wheel turning clearance is pretty straightforward and is expressed as: (A + B) - C = Clearance A = Distance from center of fifth wheel hitch jaw to truck cab B = Length of Sidewinder arm (22-inches) as with part # RP61420 C = Width of trailer divided by 2 (to get half) For an example, if the distance from the center of the hitch to the cab is 36", 36" + 22" = 58". If your fifth wheel trailer is 102" wide, take half (51"), then plug in: 58" - 51" =...
    view full answer...
  • Recommended Fifth Wheel And Sidewinder King Pin For Ford F-150
    All the parts in the picture are compatible with each other. The Sidewinder Wedge Kit # 30850 is compatible with # PS30093 as it's a Pro Series 16K manufactured after 2009. Since the Pro Series fifth wheel hitch # PS30093 has the slide bar jaw it requires use of Sidewinder Wedge Kit for Pro Series # 30850 to work with Sidewinder 5th Wheel King Pin # RP61420. The rails and install kit # RP30035-31 are compatible with Pro Series 5th Wheel Trailer Hitch # PS30093.
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  • Weight of Reese Sidewinder with Rotating Turret # RP61420
    The Reese Sidewinder 5th Wheel King Pin with Rotating Turret # RP61420 referenced in your question weighs 143 pounds. It has an actual towing weight capacity of 16,000 pounds. This Sidewinder King Pin, which will move the trailer's pivot point an extra 22 inches toward the rear of your truck, is designed for use with the Fabex 663 and 665, Lippert 0719 and 1621, and the M&M 663 and 665 pin boxes. I have attached a couple short video demonstrations on this product that you can also take...
    view full answer...
  • How to Select a Compatible Sidewinder Replacement 5th Wheel Pin Box
    A Sidewinder replacement pin box is selected by determining the brand and model of the OEM pin box that is or will be installed on your 5th wheel trailer. The linked article includes a cross-reference table of Sidewinder compatibility for a range of popular OEM pin boxes. For example, if your trailer is fitted with a Lippert 1621 or 1621HD pin box you could use Reese Sidewinder # RP61420 for a 16K-rating, part # RP61421 for a 19K rating or part # RP61422 for an air-cushioned 16K Sidewinder. You...
    view full answer...
  • What Are Horizontal Measurements For Reese Revolution Model 61516
    We do not carry the Reese Revolution (OEM product) but do carry the aftermarket version that is similar which is the Reese Sidewinder, Item # RP61420. I contacted the manufacturer and the horizontal distance from hole center to hole center for your Reese Revolution are 9-1/2 inches and 11-1/2 inches respectively. Contact us if you have other questions.
    view full answer...
  • Can Sidewinder Pin Box Fit on 2018 Jayco Eagle HT 27.5RLTS
    Sidewinders are pin box specific so you will first need to know what pin box you have now in order to pick out the correct one on your 2018 Jayco Eagle HT 27.5RLTS. There should be a sticker or a stamping on the OEM pin box of the trailer that will list the pin box number that is on the trailer. Once you figure out which pin box you have you can check the FAQ I attached that has a chart that shows the correct Sidewinder to get based on which pin box you have. If you cannot find...
    view full answer...
  • How to Pick Out a Sidewinder Hitch for a Fifth Wheel Trailer
    In order to pick out a Sidewinder we need to know the pin box model and number. Once you know that check out the link I attached and scroll down to the chart that has all of the pin boxes listed and the correct Sidewinder replacement. If you can't find that information you can also check out the link I attached on how to determine the correct Sidewinder by pin box measurements. The part # RP61420 will fit the following pin boxes: Fabex 663 and 665 Lippert 0719, 1621 and...
    view full answer...
  • Sidewinder Recommendation for Keystone Montana 3670rl
    So your Keystone Montana 3670rl will either have a Lippert 1116 pin box or the 1621. Count the amount of bolts that are on each side of the pin box. If it's 6 then you have the 1621 and you need the part # RP61420. If instead it's 9 you need the part # RP61410 and you have the 1116.
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  • Fit and Compatibility of B&W 5th Wheel Companion Hitch with Reese Fifth Wheel King Pin RP61420
    The Reese Fifth Wheel King Pin # RP61420 will fit your Northpoint Jayco 5th as long as it has one of the following pin boxes: Fabex 663 and 665 Lippert 0719, 1621 and 1621HD or M&M 663 and 665 To make the # RP61420 King Pin compatible with your B&W Companion 5th wheel,(which must be the # BWRVK3600 version that fits into the factory puck system), you will need the # SWW-06 custom wedge. This will replace the universal wedge that comes with Sidewinder. If you have the B&W Turnover...
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  • Sidewinder Recommendation for a 2015 Ram 3500 Short Bed Towing a Fifth Wheel Trailer
    The Sidewinder will provide you with the best towing experience when towing a fifth wheel trailer with a short bed truck. Not only will you not have to worry about operating a slider every time you get to a parking lot, but the trailer will also track better behind the truck. Sidewinders are pin box specific so you will first need to know what pin box you have now in order to pick out the correct one. There should be a sticker or a stamping on the OEM pin box of the trailer that will...
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  • Is the Reese Elite Series 5th Wheel Hitch Compatible with a Revolution Pin Box and 2010 Ram 2500
    Yes, the Reese Revolution pin box and the Reese Elite Series 5th wheel hitches such as # RP30142 are compatible with each other. You will just need the appropriate custom wedge # SWW-01. Since you are using a Revolution pin box I recommend using the fixed version of the Elite hitch # RP30142 because the pin box is not meant to be used with a slider hitch. For an installation kit that will fit your 2010 Ram 2500 and the Elite hitch I recommend # RP30852 which is the custom fit below...
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  • Can the Sidewinder 5th Wheel King Pin Move when not in use to Create Additional Space in Garage
    It's incredibly difficult to move a Sidewinder hitch like # RP61420 by hand and there isn't a tool to adjust it. Unfortunately is wasn't made to move by hand and I wouldn't recommend using any type of tool to hit it.
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  • Can Sidewinder Be Used With Gooseneck Adapter
    If there is a gooseneck hitch in the bed of the truck then you would need a 5th wheel trailer to gooseneck hitch adpater. Using an adapter would mean that you cannot also use a Sidewinder, like part # RP61420. It would create too much stress on the truck and the trailer. I would recommend the Andersen Ultimate 5th Wheel Connection, part # AM3225. Using this adapter would give you approximately 5-1/4 inches of offset toward the rear of the truck for your fifth wheel. It has an aluminum...
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  • Difference Between Reese Revolution and Sidewinder Pin Box
    A Reese Revolution and a Sidewinder Pin Box are essentially the same thing. It is simply called a Revolution when it comes as OEM/factory equipment on a trailer. The aftermarket product is called the Sidewinder. There are some very minor differences between the two, such as available weight capacities (there are more options with the Sidewinder) and the particular turret design on the unit. The Revolution/Sidewinder Pin Box moves the pivot point 22 inches behind the king pin, allowing...
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Info for this part was:

Expert Research:
Jackie C
Expert Research:
Mike L
Expert Research:
Robert G
Expert Research:
Michael H
Expert Research:
Jeff D
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Lori W
Expert Research:
Jeffrey L
Video Edited:
Zack K
Video Edited:
Chris R
Video by:
Andrew K
Written by:
Lindsey S
Updated by:
Laura H
Updated by:
Sarah W
Updated by:
Isabelle B
Test Fit:
Robert C
Test Fit:
David F

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