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 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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Fifth Wheel King Pin > Standard > Sidewinder > Fabex, Lippert, M and M > 663, 665, 0719 > 16000 lbs GTW > Reese

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

Reese Fifth Wheel King Pin

(11 reviews)

Code:   RP61420



Shipping Special

Shipping Weight: 144.04 pounds


Reese Fifth Wheel King Pin - RP61420

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 Q5 5th-wheel trailer hitch
  • PullRite SuperGlide 5th-wheel trailer hitch
  • Reese Trail Boss 5th-wheel trailer hitch
  • B&W 5th-wheel trailer hitch
  • 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

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.

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Customer Reviews

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

Average Customer Rating:  4.6 out of 5 stars   (11 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

by: Randy04/24/2015

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

- RP61420

by: Claude01/06/2015

I just recived my hitch it looks amazing and was shipped so fast. My camper is in storage so I won't be able to put in on for awhile. I also bought brackets to install my hitch in my pickup and they are going to make installing it much easier. thanks for fast service. 167948

- RP61420

by: George J.05/28/2015

The sidewinder RP61420 bolted right up and has given the extra space that was needed so that the trailer would not hit the cab of the truck when turning. thanks for the great help from your staff. 198406

- RP61420

by: robert davis02/17/2015

very fast shipping and great customer service.Order on a Tuesday and had it two days. Will be a customer for life. Thanks Robert Davis 175085

- RP61420

by: Jerry W.10/27/2014

I am very very impressed with the trailer experience. Fast shipping also, we pick up our fifth wheel Thursday. 158053

- RP61411

by: mike s03/19/2014

Review from a similar Reese Sidewinder in Fifth Wheel King Pin

great product will be trying it out for first time this weekend so far around town its doing its job and etrailer was quick and professional on order 121322


What trailer are you towing and what vehicle is it installed in

comment by: Robin T - 08/17/2014


i put it on a 2007 raptor trailer and my truck is a 2011 ford 250 diesel reg bed first time i took trailer in for servicing camping world got scared of it because of unit swiveling they never saw one before they did not want to move trailer i had to drive back down there and move it for them if you have a long bed then you dont need the side winder other wise it does the job ive been to fontana,pomona,sonoma,pismo beach all over 200 miles ea one way no problems

comment by: mike s - 08/18/2014


I installed one on my Alpine 3500RE. I have an F350 4X4 with utility boxes. Its only 49 wide in the bed. Works awesome! I can also load up the bed with stuff since nothing swings in the bed

comment by: Ace G - 09/15/2014


It wont let me comment, so Im writing hereThis is the best Pin-box i have ever owned, and I dont even need the short turning box for my truck. My unit came with a Lippert Trail-Air that I despised. This Reese pinbox literally makes your trailer 22 shorter for maneuverability purposes. With the pivot being under the trailer and not at the hitch, I can go past Jack-Knife when backing up in a tight spot. I like this box so much, I received a new trailer under lemon-law and I swapped out the pinboxes right in the dealer parking lot...I wouldnt let them have my Sidewinder! 5 out of 5 stars from me Reese!Freightliner SportChassis

comment by: dAVE j - 10/07/2014


- ST400-SW16K

by: Floyd09/16/2015

Review from a similar Reese Sidewinder in Fifth Wheel King Pin

I saw the video and knew I wanted one but wondered if I would use it enough and I have used it many times. I never worry about pulling out of the gas station hitting the truck and we can get into tight camp spots no problem. My father and brother in law are Cornell engineer graduates and said no extra strain on my 32 foot 10,000 pound jayco 2010 5th wheel. To give clearance over 2006 2500hd GMC I used tallest setting. This gave me 7" of clearance but fiver pulls a little off level, it would be level if I used second from bottom hole but then I would have only 3.5" of clearance. I love this product! Make sure you get a hitch with a four way articulating head. This is a must because the throat of the hitch is very narrow and if you are not on level ground you won't be able to hook up without a bunch of swearing and blocks under your rear truck wheels trying to get level. I bought a new etrailer hitch for about $460.00. Great hitch! 225832

- RP61410

by: Mac06/08/2015

Review from a similar Reese Sidewinder in Fifth Wheel King Pin

Other than heavy no major problem installing. Put it in back of my truck on plywood and used scissors lift motorcycle jack to lift into place. The high quality hardware is big plus, as wasn't expecting grade 8 bolts. It opens up the pin box area and makes it much more difficult for wasp to get into that area and hide. The other thing I noticed is it made the backing up of RV much more easy. That pivot 22 inches back from center of rear wheels makes the RV respond to small changes in steering much better when backing up. It also makes the RV track the Truck better when turning. Can also turn more than 90 degrees which adds lots of confidence to the refueling when having to use automotive style gas stations. Doesn't swing the tail of RV out as far when maneuvering. Every inch counts to me as the 37 foot toy hauler takes up lots of maneuvering room. 201704

- ST400-SW16K

by: troy l05/11/2012

Review from a similar Reese Sidewinder in Fifth Wheel King Pin

produst works extremely well, although it it ridiculously overpriced. There are tongue extensions available that will give you the same clearance for less than a hundred bucks if you can find one. I was in a time crunch to get something so I had to order this piece, but if I had more time I would niot spend over a thousand dollars to get this. Does work well though........ 40126


Sorry to be a pain but I have asked you if a sidewinder pinbox fitted to a Dodge Ram with the RAMBOX would work you said that you do not recommend any 5 wheeler fitted to the RAMBOX. You have not said why.The reason I need to know is I would like to order the ram with the RAMBOX .And if it will work what size box should I purchase? Thank you bob

comment by: bobby - 12/27/2013


The Rambox system makes the bed narrower, though I am not sure to what degree. It is for that reason that Reese and other manufacturers have suggested against fifth wheel towing with Rambox equipped trucks.

Patrick B - 12/28/2013

- ST400-SW16K

by: Gary G.06/10/2012

Review from a similar Reese Sidewinder in Fifth Wheel King Pin

This is an outstanding heavy duty product that was easy to assemble and install on my fifth wheel trailer. The directions and the video were right on the money and made installation a snap. I would not hesitate to purchase this product if your looking to tow your fifth wheel trailer with the Silverado 5 1/2 foot bed. 43521

- RP61410

by: Bill B02/07/2015

Review from a similar Reese Sidewinder in Fifth Wheel King Pin

fast shipping on side winder-- easy to install have not been able to try towing with it but it appears to be exactly what I wanted and expected 172835


Ask the Experts about this Reese Fifth Wheel King Pin
Do you have a question about this Fifth Wheel King Pin?

  • Minimum Truck Bed Length for Towing a 5th Wheel Trailer Without Cab and Loft Clearance Issues
  • The minimum bed length for towing a fifth-wheel trailer with a standard fifth-wheel hitch, see link, is 8 feet. A 6-1/2 inch bed like the Silverado Extended Cab you mentioned can be used along with a slider style fifth-wheel hitch, see link, that requires you to remember to get out of the truck and move a handle to slide the hitch rearward when tight parking and campground situations are encountered. Once ready to go back out on the road the hitch will need to be moved forward, requiring...
    view full answer...

  • Differences Between a Reese Sidewinder and Revolution on a 5th Wheel Trailer and 2012 Ford F-150
  • A Sidewinder and a Revolution are the same thing. It is called a Revolution when it comes as OEM equipment on a trailer. That is the only difference. To determine if the Revolution offers enough extra clearance for your truck and trailer, there are some measurements to look at. First, measure from the center of the hitch jaws to the back of the truck cab and add 22 inches (length of Revolution extension). Then, measure the width of the trailer overhang and divide by 2 to get half. If...
    view full answer...

  • How to Determine What Pin Box is on a 5th Wheel Trailer for Picking out a Sidewinder
  • There should be a sticker or a stamping on the OEM pin box of the 2003 Fleetwood Prowler 275 CKS that will list the number pin box 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 you have you can check the FAQ I attached that has a chart that shows the correct Sidewinder to get based on...
    view full answer...

  • What is Required Lubrication and Maintenance of Reese Revolution Sidewinder Pin Box # RP61420
  • My research on the Forest River website shows that their Rockwood Series of 5th wheel trailers currently comes equipped with a Reese Revolution hitch. The gross weights (GVWR) of the various Rockwood-series trailers varies considerably across models from a low of 7850-lbs for their 8244WS to a high of 9350-lbs for their 8289WS but my contact at Reese advised that the routine maintenance recommended in their instruction manual (which is attached for your review) are consistent across...
    view full answer...

  • 5th Wheel Towing Set-Up Recommendations for 2014 Ram 1500 With 5.5-ft Bed
  • You are correct that 5th wheel towing with your short-box truck will require a Sidewinder replacement pin box be installed on your 5th wheel trailer to provide enough cab clearance for turning. Replacement pin boxes are selected based on matching the original pin box number; the linked article includes a table of various brands and models of pin boxes along with the compatible Sidewinder and Air-Ride Sidewinder pin boxes that will work as replacements. For example, if your 5th wheel...
    view full answer...

  • Can a 5th Wheel Trailer Hitch be Centered Behind the Rear Axle on a Truck
  • The dealer made a mistake, the center of the king pin should be either directly above the center of the rear axle or forward of the rear axle. The problem that you will run into is that when you have the pin weight behind the rear axle it will raise the front of the truck. This will have a negative impact on steering, braking, the head lights will point up. Also, the truck can carry the most weight directly above the rear axle. It cannot carry what it is capable of if the weight is centered...
    view full answer...

  • 5th Wheel Hitch for 2014 Dodge Ram 2500 with RamBox and 6-Foot Bed
  • A short bed truck by itself can pose a challenge for 5th wheel towing due to the limited front-to-back clearance between the truck cab and the trailer's overhang. When we add the Rambox feature we also add another complication: reduced side-to-side clearance. Hitch makers like Reese, Curt and B&W discourage use of 5th wheels in such trucks; that said, there are those that have satisfactorily installed 5th wheels anyway. The best solution for the turning clearance problem in such trucks...
    view full answer...

  • Do Sliding Fifth Wheel Hitches Automatically Unlock and Slide for Tight Turns or is it Manual
  • Slider hitches have to be un-locked in order to slide rear ward for tight turns. That can either be done by exiting the truck and manually unlocking it or using an electrical un-locking system that is operated by a control panel in cab. If you do not want to have to un-lock a slider fifth wheel, you have the option of using a Sidewinder, like part # RP61420. A Sidewinder will put the pivot point at the trailers pin box rather than pivoting on the fifth wheel head. If you write back...
    view full answer...

  • How to Determine if a Sidewinder Will Fit a Zieman Pin Box on a 2006 Weekend Warrior
  • Since the available Sidewinders do not specify a Zieman pin box, you will need to take some measurements of the pin box to determine if any of the Sidewinders will fit. I have included a link to a help article that shows the measurements needed. With that information I should be able to determine if there is a Sidewinder that will work.
    view full answer...

  • Is Sidewinder Needed to Tow Fifth Wheel Trailer With 2010 Toyota Tundra Crew Max With 5.5 Foot Bed
  • Since the truck bed is less than 6 feet on your 2010 Toyota Tundra Crew Max 5.5 foot bed, you will need to use a standard fixed fifth wheel hitch and a Sidewinder to give you the necessary clearance between your vehicle and trailer. I am including a link to a FAQ page on information for fitting a Sidewinder to your truck and the clearance formula you can use to determine if it will work with your fifth wheel trailer. To determine the correct Sidewinder for your Toyota Tundra depends...
    view full answer...

  • Recommended 5th Hitch and Pin Box for Towing Jayco Eagle with 2008 Silverado 2500HD Short Bed
  • I will assume that your 2008 Silverado 2500HD has the 6-1/2 foot bed. The pin box of a fifth wheel trailer is the extension that comes off of the underside of the trailer loft. The king pin that locks into the jaws of the fifth wheel hitch extends from the bottom of the pin box. I have edited a photo for you showing these parts. For a 6-1/2 foot bed, we typically recommend using a sliding fifth wheel hitch to provide the proper clearance between the front of the trailer loft and the...
    view full answer...

  • How to determine the Correct Sidewinder for a Lippert Pin box on a 2007 Forest River Wildwood
  • To select a Sidewinder with Rotating Turret for your 2007 Dodge Ram 3500 Mega Cab with 6.3 foot bed, you will need to find the pin box model number or take measurements to determine the correct turret for your trailer pin box. I have posted a picture for you to see the measurements that need to be taken. You will most likely need the Sidewinder Fifth Wheel King Pin with Rotating Turret, item # RP61410, that you selected or the, item # RP61420, Sidewinder for your trailer with a Lippert...
    view full answer...

  • Compatibility of 5th Wheel Hitches with Dodge Ram Pickups with Rambox Feature
  • Reese is not alone among 5th wheel hitch makers in not recommending 5th wheel installations in the Dodge trucks having the Rambox feature. Curt and B&W also do not recommend this truck for 5th wheel hitches. The issue is clearance. Trucks with a short box start off with an issue of inadequate trailer-to-cab clearance and the Rambox feature reduces lateral clearance. That said, there are those that have satisfactorily installed 5th wheels in the Rambox trucks anyway. The best solution...
    view full answer...

  • Longer Pin Box for 5th Wheel Trailer Using a Lippert 1621 Pin Box
  • You could use a Sidewinder pin box, # RP61420 for a 16K, # RP61421 for a 19K, or # RP61422 for a 16K with air ride. When using a Sidewinder you will need to leave the slider locked in the towing position. Sliding it back would no longer be needed since the pivot point will be moved back 22 inches. Any of these will move the pivot point of the trailer back 22 inches. If you lower the tailgate when hooking up the trailer then you also may be interested in a 5th wheel tailgate. I would...
    view full answer...

  • Reese Hitch Recommendation for a 2007 Toyota Tundra 5.5 Bed Towing a Open Range Light Trailer
  • I did a little research on the pin box that is on the Open Range Lite fifth wheel and it does look like you could tow one of their trailers with your 2007 Toyota Tundra with a short bed. For a hitch for your 2007 Toyota Tundra with a 5.5 ft bed I would recommend you get a Reese 5th Wheel Trailer Hitch # RP30047 and Reese Rail Kit # RP30035-309. This hitch provides excellent jaw-to-king-pin contact with a 2 jaw latching system. If you were to ever try and tow a different trailer you...
    view full answer...

  • Sidewinder Pin Box Replacement Recommendation for a Lippert 1621 Pin Box
  • If you have a Lippert 1621 pin box the # RP61420 that you referenced would work for you, but not the # RP61410 as it is designed to fit a different style pin box. I attached an install video for the # RP61420 for you to check out though, it would work well with your Draw Tite fifth wheel hitch as well.
    view full answer...

  • Will Reese Sidewinder # ST400-SW01 Fit a Lippert 1621 5th Wheel Trailer Pin Box
  • The Lippert pin box 1621 has a different design and bolt pattern so it requires a different turret than what is on # ST400-SW16K. If the turret you have uses 4 bolts to mount to the arm, then you can just swap the turret for the right one, # RP61300. The only other option would be to replace the entire unit with # RP61420. I have included a video for you to view that shows a typical installation.
    view full answer...

  • Is a Reese Revolution or Sidewinder Compatible with a Curt E5 5th Wheel Trailer Hitch
  • There are certain 5th wheel hitches that are not compatible with the Revolution or Sidewinder. The Curt E5 will not be a problem but you will have to keep the hitch locked in the towing position and never slide it back. Doing so will put incredible stress on the trailer and hitch and can cause a lot of damage and it will put the king pin behind the truck axle. This will lighten the front end, maybe enough to adversely affect steering and braking response. If the trailer already has a...
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  • Sidewinder Recommendation for a Lippert 1621 Pin Box
  • For a Sidewinder that is compatible with your Lippert 1621 pin box you would want a Sidewinder 5th Wheel King Pin # RP61420. The Sidewinder # ST500-SW16K that you referenced is designed to work on Youngs Welding pin boxes and would not work for you. Check out the faq article I attached on Sidewinders for you to check out also.
    view full answer...

  • Replacement Pivot Bushing and Wear Discs for Reese Sidewinder
  • The Sidewinder uses a top and a bottom wear disc and a pivot bushing. We do indeed carry replacements. The Upper Wear Disc is part # 200959, the pivot bushing is part # 200843 and the lower wear disc is part # 113983. To replace the discs and bushing, you'd first remove the Sidewinder from your fifth wheel by removing the bolts that hold the king pin to the fifth wheel. You'll want to have a helper or two available, as the Sidewinder assembly will be heavy. You'd then remove the 3 or 4...
    view full answer...

  • Maintenance/Lubrication for a Reese Sidewinder Replacement 5th Wheel Trailer Pin Box
  • In the second to last page of Sidewinder instructions, linked to the right for you, they list the following: MAINTENANCE: 1. For ease of hookup; frequently lubricate the wedge surfaces, back side of the king pin, and the skid plate surface. 2. If resistance is present in the Sidewinder arm, apply a lithium grease to the bearing surfaces as described in the assembly section of this manual. 3. Keep pin-box hitch painted to prevent rust and maintain a good appearance. (Do Not paint over...
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  • Recommended Sidewinder King Pin for 2013 Heartland Sundance Fifth Wheel with Lippert 1621 Pin Box
  • If you are needing more clearance between the rear of the cab and the front of your fifth wheel, you would need a Sidewinder. We have four different Sidewinder models that are compatible with the Lippert 1621 pin box. If you need a 16,000 lb capacity, the Sidewinder is part # RP61420. If you would like the extra clearance plus the cushioning provided by the air ride system you mentioned, go with part # RP61422. For a 19,000 lb capacity, the Sidewinder is part # RP61421. If you...
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  • 5th Wheel Hitch and Sidewinder Recommendations for Use with 2015 GMC Sierra 1500
  • Let's start with a 5th wheel hitch for your 2015 GMC Sierra 1500. Since your truck has a very short bed 5th wheel towing will require a standard fixed 5th wheel hitch along with a replacement Sidewinder pin box, as you noted. The 16K-rated Pro Series # PS30855 and the Reese # RP30047 both feature a 4-way pivoting head assembly to simplify hitching your trailer on uneven ground as well as a dual-jaw system for better grip on your king pin. The key difference between the two is the length...
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  • Custom Wedge for Reese Revolution/Sidewinder Pin Box and a Curt E16 5th Wheel Trailer Hitch
  • There is a wedge for the Curt E16 5th wheel trailer hitch. You will need custom wedge # 30861. Considering the weight and stresses involved in 5th wheel towing, be sure to inspect the wedge, hitch, and pinbox before each trip.
    view full answer...

  • Can a Sidewinder Pin Box be Used with a 2012 Chevrolet Silverado Crew Cab Short Bed
  • It is actually required that you use a sidewinder pin box on your fifth wheel trailer if your truck has a bed shorter than 6 feet like your 2012 Chevrolet Silverado Crew Cab because a sidewinder pin box provides the most possible clearance to safely execute sharp turns. To use the sidewinder with your truck you would just need to add a fixed fifth wheel hitch, base rails and brackets. Since you have a 5 foot 8 inch bed, I assume you have a 1500 Crew Cab model. If you do not already...
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  • Sidewinder Fifth Wheel King Pin with Rotating Turret, part RP61420 for Fabex model 663
  • Yes, the Sidewinder Fifth Wheel King Pin with Rotating Turret by 5th Airborne, 16K, code # RP61420, is the replacement for your Fabex model number 663, 15k king pin box. The sidewinder design allows you to make up to 90-degree turns without getting out of the truck or throwing a switch, and easily hooks up and disconnects. I have included a link to the installation details and a link to a Sidewinder FAQ article for you.
    view full answer...

  • Can Revolution/Sidewinder Pin Box be Used with B&W Companion Hitch that Fits in Gooseneck Ball Hole
  • No, a Sidewinder or Revolution pin box cannot be used with a B&W Companion hitch that fits in the gooseneck ball hole. The problem is that the pivot point on the trailer is locked out at the hitch and moved back 22 inches to the turret on the Revolution/Sidewinder. This creates extra stress and torque on the hitch. This extra force can end up twisting the hitch, and where it connects in the gooseneck ball hole, and can damage both. If it was the Companion hitch that fits in the...
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  • 5th Wheel Hitch Options for 2007 Chevrolet Silverado Classic 2500 Diesel 4X4 with 6-1/2-Foot Box
  • You have two options for 5th wheel towing with a short-bed truck such as your 2007 Chevrolet Silverado 2500 Diesel 4X4 with 6-1/2-foot box. A sliding 5th wheel hitch is one way to get around the limited trailer-to-cab clearance with such short-bed trucks and the other is to use a Sidewinder replacement pin box on the 5th wheel. Both of these products, which cannot be used together, provide additional turning clearance for low-speed maneuvering. There are several types of 5th wheel installation...
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  • Can I Convert the Reese Sidewinder # RP16420 to a # RP16410 Sidewinder by using a Spacer Kit
  • I spoke with my contact at Reece and he confirmed that the Sidewinder Fifth Wheel King Pins with Rotating Turrets # RP61420 and # RP61410 both come with the Rotating Turret # RP61300. By adding Spacer Kit # RP61301 to # RP61420 you will end up with the same product as the # RP61410. This would confirm that # RP61420 would work as a replacement for Lippert 1116 as long as the spacer kit is used.
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  • 5th Wheel Installation Kit and Hitch Recommendation for a 2010 Toyota Tundra with 5-1/2 Foot Bed
  • Starting with the truck, we do have a semi-custom fifth wheel rail installation kit, # RP30035-309, but this kit is designed to fit the universal installation kit to your 2010 Tundra with a 5-1/2 foot bed and will still require drilling to install the frame brackets. There is not a full custom install kit available for your truck at this time. I attached links to the instructions for the semi-custom kit for you to review. When selecting a fifth-wheel hitch for your truck bed you will...
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Do you have a question about this Fifth Wheel King Pin?

Info for this part was:

Expert Research:
Michael L

Video Edited:
Zack K

Written by:
Lindsey S

Expert Research:
Robert G

Expert Research:
Michael H

Expert Research:
Jeff D

Expert Research:
Jameson C

Expert Research:
John H

Expert Research:
Adam R

Updated by:
Laura H

Photos by:
Jim W

Expert Research:
Lori W

Expert Research:
Jeffrey L

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