Sidewinder 5th Wheel King Pin with Rotating Turret - 19,000 lbs

Sidewinder 5th Wheel King Pin with Rotating Turret - 19,000 lbs

Item # RP61421

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Fifth Wheel King Pin

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Sidewinder 5th Wheel King Pin with Rotating Turret - 19,000 lbs Fabex,Lippert,M and M RP61421
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Product Images

Videos


  • 663
  • 665
  • 0719
  • 1621
  • 1621HD
  • 663
  • 665
  • Fabex
  • Lippert
  • M and M
  • Provides Turning Clearance
  • 19000 lbs GTW
  • Pin Box Upgrade
  • Reese
  • Rotating Turret
  • Non-Cushioned
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 RP61421 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 - 19,000 lbs. Fifth Wheel King Pin reviews from real customers.


  • All Info
  • Reviews (10)
  • Q & A (150)
  • Videos (1)
  • Photos
  • Why etrailer?

Reese Fifth Wheel King Pin - RP61421

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.


Features:

  • 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


Specs:

  • Designed for use with the following pin boxes:
    • Fabex 663 and 665
    • Lippert 0719, 1621 and 1621HD
    • M&M 663 and 665
  • Weight capacity: 19,000 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

Therefore,

(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 19,000 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
  • Blue Ox Hensley TrailerSaver TS3
  • Hi-Rise gooseneck-to-5th-wheel adapter by Draw-Tite, Hidden Hitch, Bulldog and Reese
  • Any other gooseneck-to-5th-wheel adapter


61421 (SW19K and 61300) Fifth Airborne Side Winder Fifth-Wheel Pin Box Coupler with Turret and Hardware

Replaces ST200-SW19K



RP61421 Installation InstructionsInstallation Details RP61421 Installation instructions

This Product Fits The Following Vehicles

2019 - 2019 Forest River Sabre Fifth Wheel 36BHQ

2016 - 2016 Jayco Pinnacle Fifth Wheel 36KPTS Luxury




Video of Sidewinder 5th Wheel King Pin with Rotating Turret - 19,000 lbs


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




Video Transcript for Reese Fifth Wheel King Pin - Pin Box Upgrade - RP61421 Review

Speaker 1: Today, we're going to take a look at the Reece Sidewinder 5th Wheel King Pin with the Rotating Turret, and has a 19,000 pound weight capacity.With this Sidewinder, the fifth-wheel trailer's pivot point is going to move an extra 22 inches toward the rear of your tow vehicle so that you can easily make 90 degree turns, even with a short-bed truck, so there's no need to get out of your truck, throw a switch, push a button, or mount a fifth-wheel slider. Your trailer will even track more closely to the truck for better drivability. The 22 inches is measured from the center of the king pin right up here, to the center of the turret post.This Sidewinder and turret assembly will bolt onto your fifth-wheel trailer. Does come with the mounting hardware to install it. The king pin right down here is what will connect to your standard fifth-wheel trailer hitch, and allows for easy hookup and disconnect at any angle. This does include a universal locking wedge that'll prevent the king pin right here from rotating in your hitch jaws.

Now some fifth-wheel hitches may require a custom wedge, and we do sell those separately on our website.This is all a nice, one piece, streamlined construction. The Sidewinder itself has a nice C-Channel design which provides more stability and strength than your standard pin box, and it's able to support heavier loads.Few specs on this. The turret right here, this is designed for use with the following pin boxes. It'll fit on the Fabex 663 and 665; fits on the Lippert 0719, 1621 and 1621HD; and it'll also work on the M&M 663 and 665. Trailer weight capacity on this is 19,000 pounds.

The pin weight capacity is 3,800 pounds.One thing I do want to mention is, if you'll use, on the product page of this product, if there's a, at the bottom of the page, there is a clearance formula that you can use. That'll let you calculate if there's going to be enough space between your truck cab and your trailer when you're executing a 90 degree turn with the Sidewinder installed.Again, here's where your turret will turn. Your king pin right up here is what'll be connected to your fifth-wheel hitch.That should do it for the review on the Reece Sidewinder 5th Wheel King Pin with the Rotating Turret and a 19,000 pound weight capacity.


Customer Reviews

Sidewinder 5th Wheel King Pin with Rotating Turret - 19,000 lbs - RP61421

Average Customer Rating:  4.7 out of 5 stars   (10 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.

- RP61421
by:

I haven't installed my pin box yet, but everything arrived packaged well and ready to go. After installation I will give a more complete review. 655893



- RP61421
by:

Needed to move my pivot point back to get clearance for 5th wheel. Order arrived very quick and install went well. I have used the trailer several times and unit works as it is supposed to. No more fear of hitting the truck cab. Excellent item. 652929



- RP61421
by:

I will be pulling my camper for the first time on Sunday the 8th of July. I will let you know how it works than. As far as the install, it was quite easy. Good directions & easy to follow. So far so good. I’m keeping my fingers crossed that I will have cab clearance. 529400



- RP61421
by:

Great product and other than the weight, very easy to install. Very fast delivery. Two days from order to my door. 512610



- RP61421
by:

Put this on my new 5th wheel to pull with my shortbed truck. Have pulled it twice with lots of tight turns with plenty of room between the trailer and the truck. Highly recommend this to anyone with a shortbed truck. 511822



- RP61421
by:

Product arrived quickly and in good condition. The box was trashed and heavily taped. Maybe better packaging from the manufacturer is in order. etrailer's video for install was excellent and easier to follow than the paper instructions. I would definitely buy from etrailer.com again 505876


Comments

I love the Sidewinder for my short box truck. I recommend it to anyone asking.

BrettL - 05/09/2019

55069

- RP61421
by:

We have not installed it yet but we are convinced after using our other one that this will be a wise investment! 481950



- RP61421
by:

The products I ordered arrived quickly. I found that the prices on etrailer are very reasonable. I will do business with them again. 466481



- RP61421
by:

Excellent fast shipping and service . 406264



- RP61421
by:

customer service great!!!!!!!!!!!! shipping on first order was lousy, but that was not your fault... 307939


10
10

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


  • Sidewinder Pin Box to Replace a Lippert 1621 to Improve Turning Clearance with 5th Wheel Trailer
  • It sounds like your fifth wheel trailer's pin box is making contact with your 2010 Ford F-150's side rails when you make turns. This is one reason why we recommend at least 6 inches between the underside of the trailer and top of your bed rails. One solution to your problem is a taller fifth wheel hitch but this sometimes can cause your entire setup to not ride level. Another solution, like you suggest may be a Sidewinder pin box. Sidewinders are designed to replace specific pin box...
    view full answer...

  • Recommended Autosliding 5th Wheel Hitch for a 2016 Ram 3500 With Factory Puck System
  • Yes, we have a great option for you to use an autosliding 5th wheel hitch with your 2016 Ram 3500. Demco has their Hijacker series Autosliding 5th Wheel Hitches which will work perfect for your application.The Hijacker that I recommend for you, part # DM8550034, is rated for 18,000 lbs. This 5th wheel hitch will use the bed rails, part # DM6099 which is compatible with your factory puck system. This is my favorite 5th wheel hitch in the sliding category not just because of the autosliding...
    view full answer...

  • Sidewinder With 19,000 lb Capacity For Use With 2015 Ram 2500 With Ram Box
  • You will be safe towing your trailer with your 2015 Ram 2500 as long as you are under the 19,000 when using a Sidewinder rated for 19,000 lbs. You will not need to remove your truck tailgate to use a sidewinder. For your 19,000 lb options the pivot point sits 22" behind the king pin and above your bed rails and tailgate. The rotating turret attaches to the pin box on your trailer to provide the new pivot point since the king pin is locked in place at the hitch. Here are your...
    view full answer...

  • Slider Hitch versus Sidewinder Pin Box Turning Clearance for Short Bed Truck
  • The fix for towing a 5th wheel with a short bed truck is either a slider hitch or for beds that are shorter than 6-feet a replacement trailer pin box called a Sidewinder. Sidewinders move the trailer pivot point 22-inches back from the king pin, to the rotating turret assembly at the end nearest to the trailer's mounting wings. The two linked articles on 5th wheel towing with short-bed trucks will be helpful. Most slider hitches give you between 10- and 14-inches of travel, but a Sidewinder...
    view full answer...

  • Recommended 5th Wheel Rails and Hitch for 2018 GMC Sierra 1500 5.5 Bed for Reese Revolution Pin Box
  • A Reese Revolution is the equivalent of the Reese Sidewinder. The Revolution is the factory installed option and the Sidewinder is the very similar aftermarket option. For a 5-1/2 foot bed, a sliding hitch will not work, so the Revolution or Sidewinder route is the only option to provide you with turning clearance. The really good news is that is by far the ideal option even if you had a longer bed truck. For your 2018 GMC Sierra 1500, I recommend you start with the Reese Quick-Install...
    view full answer...

  • 5th Wheel Trailer Hitch and Install Kit for 2018 Toyota Tundra 5-1/2 Foot Bed with Air Bags
  • I am assuming that your 2018 Toyota Tundra 5-1/2 foot bed does not already have any sort of 5th wheel rails so the first thing we ill need to look at is an installation kit. Looking at how the various air bag kits install on your truck it doesn't look like they will interfere with 5th wheel frame brackets so that is good. You can use Demco installation kit # DM8552020-71. This will allow you to place the hitch so that when the trailer is attached the king pin will be centered over the...
    view full answer...

  • Base Rails and Fifth Wheel Hitch for 2013 Ford F-150 With 5-1/2 Foot Bed
  • Yes, the Reese Quick-Install Custom Bracket Kit # RP50081 will fit your 2013 Ford F-150 with a 5-1/2 foot bed; you will need to use Base Rails # RP58058 with this kit. The brackets and rails can also be purchased together at part # RP50081-58. Keep in mind that towing a fifth wheel with a 5-1/2 foot bed will require your trailer have a Sidewinder, and for the fifth wheel hitch you use to be a fixed hitch that is compatible with a Sidewinder. For this I strongly recommend the Reese Select...
    view full answer...

  • Fifth Wheel Trailer Hitch for a 2017 Ram 2500 with Rambox
  • Yes, it is possible to tow a 5th wheel trailer with a 2017 Ram 2500 with RamBoxes. However, because of the of the RamBox feature not all 5th wheel products are compatible. In my opinion, I personally would not get the RamBox feature.The boxes will limit your hitch options and what components that are available will increase the over all expense of a 5th wheel hitch for a Ram with RamBoxes installed. I recommend getting the factory prep package without the RamBox. For this application,...
    view full answer...

  • Will the Fixed B&W Companion OEM 5th Wheel Hitch RVK3600 Fit a 2018 Ram 3500 Short Bed
  • Yes, the B&W Companion OEM 5th Wheel Hitch part # BWRVK3600 will fit your 2018 Ram 3500 with the 6-1/2' bed if you have the factory prep package. However, in order to allow for sufficient turning clearance between the cab of the truck and loft of the trailer during a 90 degree turn you will also need to use a rotating pin box like the Sidewinder 5th Wheel King Pin with Rotating Turret part # RP61421. If you need one of these just let me know which pin box you have on your trailer now (brand/model...
    view full answer...

  • Recommended 5th-Wheel Hitch for 2017 Ram 1500 with RamBox
  • I do have a solution for you, however the sliding 5th-wheel hitches we have available are not recommended for use on a 2017 Ram 1500 that has the Rambox like yours. The issue is that the Rambox feature can interfere with a sliding hitch, which is what is typically needed on short bed trucks in order to provide proper clearance during sharp turns. To tow a 5th-wheel trailer with your Ram 1500, I recommend going with a fixed 5th wheel hitch like the Reese Select Plus # RP30081 along with...
    view full answer...

  • Will Sidewinder Allow 2016 Ram 1500 With Rambox to Make 90 Degree Turn?
  • In order to determine if a Sidewinder such as # RP61420 will allow you to perform a 90 degree turn with your 2016 Ram 1500, you first need to measure the distance from the center of your fifth wheel hitch jaw to your truck's Rambox.You will also need to know the width of the trailer you will be pulling. You can then use this formula to find out if you can do a 90 degree turn: (A + B) - C = Clearance A = Distance from center of 5th-wheel hitch jaw to Rambox in inches B = Length of Sidewinder...
    view full answer...

  • Recommended Equipment Needed to Tow a 16,000 lb 5th Wheel with a 2016 Diesel Ram 2500
  • To figure out how heavy of a trailer you can tow with your 2016 Dodge Ram 2500 take the GCWR of your Ram (25,300 lbs) and subtract the Curb Weight of your Ram (7,620). This leaves you with 17,680 lbs of weight for any extra things on your truck like a 5th wheel hitch as well as passengers, luggage, your trailer, plus any tanks on your trailer. If the trailer that you are looking at has a dry weight rating of 12,650 lbs then that leaves you with 5,030 lbs for passengers, luggage, 5th...
    view full answer...

  • Will Reese 61300 Rotating Turret Fit SW-19K Sidewinder
  • I think you meant to type 61300 for the rotating turret part number, which is our part # RP61300. If this is the case then it will indeed fit your existing SW-19K Sidewinder component. This combo is actually already available with part # RP61421. This will fit the 1621 model pin box on your new trailer perfectly.
    view full answer...

  • Is a Custom Wedge Required for the B&W Companion OEM While Being Used with the Sidewinder
  • Yes, the 5th Airborne Custom Wedge for B&W Fifth Wheels part # SWW-06 will be needed with the Sidewinder 5th Wheel King Pin with Rotating Turret part # RP61421 when used with your B&W Companion OEM 5th Wheel Hitch part # BWRVK3600. If you have not used a rotating pin box before then the only real difference in regards to operation is that you will need to align the truck as straight as possible when you couple the two together. This is going to ensure that the wedge gets seated inside...
    view full answer...

  • Recommended 5th-Wheel Hitch that is Easily Removed on 2014 Ram 1500
  • Choosing the right 5th-Wheel Trailer Hitch for your 2014 Ram 1500 will depend first on the weight of the trailer you plan on towing. You will want to make sure the truck and hitch have weight capacities that exceed the trailer's loaded weight. Since your Ram 1500 has a short 5-1/2 foot bed, the safest way to tow a trailer is to use a stationary 5th-wheel hitch and replace the pin box on the trailer with a Sidewinder, if it does not have one already. The Sidewinder will be required to...
    view full answer...

  • Fit of the Reese OEM 5th Wheel Hitch for a 2017 Ram 3500 6 ft Bed and the Reese Sidewinder Pin Box
  • Yes, a Reese Sidewinder Pin Box and Reese OEM 5th Wheel Hitch, # RP30160, can work together on a 2017 Ram 3500 with 6 ft. 4 in. bed. If your original pin box was the Lippert 1621, then the Reese Sidewinder 5th Wheel King Pin 19,000 lbs # RP61421 will fit on your Grand Design Solitude trailer. Since the pivot point will be 22 inches behind the king pin and the pivot point will be extended back from the cab of the truck there will be no issues in making turns with your short bed vehicle....
    view full answer...

  • Selecting Sidewinder Pin Box for 2016 Keystone Laredo 297 Fifth Wheel
  • Usually a 5th wheel trailer's pin box part number will appear on the primary safety/information sticker on the driver's side of the pin box. I reviewed the trailer specs on the Keystone and other websites and pin box information is not provided so you'll need to check for the part number on your pin box. Once you know it you can refer to the linked article that will tell you the available standard and cushioned Sidewinder pin boxes that will bolt right up in its place. For instance if...
    view full answer...

  • Wedge for Reese M5 Fifth Wheel Hitch and Sidewinder in 2019 GMC Sierra 3500HD
  • I spoke with a representative of Reese who said that the Reese M5 5th Wheel Trailer Hitch # RP30890 does not have a custom wedge. The Sidewinder # RP61421 comes with a universal wedge, part # 201100 that you will use with your hitch. This is a great set up you have chosen for you 2019 GMC Sierra 3500HD; the Reese M5 hitch will fit directly into the puck system of your truck and has a unique jaw system called a "Talon" which is a single-piece jaw that will wrap fully around your Sidewinder's...
    view full answer...

  • Best Way to Tow Fifth Wheel Trailer with 2018 Ram 3500 Short Bed with Hitch Prep Package
  • If you are open to the idea of using a Sidewinder pin box that will be the best towing solution for your short bed 2018 Ram 3500. It allows you to not have to use a slider hitch (which are heavy, noisier, and are somewhat of a hassle) and it allows the trailer to track better behind you and will easier to back up. We've spoken with the manufacturer of your 2018 Reflection 337RLS before and we know it has a Lippert 1621 pin box so you'd want the part # RP61421 which has a 19k capacity. Then...
    view full answer...

  • Will Sidewinder Work With 2017 Ford F-150?
  • The compatibility of a Sidewinder is not with the truck, it is with your fifth wheel's pin box and the fifth wheel hitch you have (although with a 5-1/2 foot bed you have to use a Sidewinder to get the proper clearance). A Sidewinder is going to replace your pin box so in order to find the correct one you need to find the manufacturer and pin box model number, which will generally be stamped on the pin box. For example, Sidewinder # RP61421 will replace Fabex 663 and 665, Lippert 0719,...
    view full answer...

  • Reese Sidewinder Pin Box to Replace Fabex 520 Pin Box
  • We offer three Sidewinder pin boxes to replace a Fabex 520 pin box. Please refer to the linked article. Part # RP61410 is a 16K Sidewinder; part # RP61411 is a 19K model; and Sidewinder part # RP61412 is a 16K model that also includes a built-in air spring and shock to reduce the effects of chucking and jarring for a nicer ride. 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...
    view full answer...

  • Can the Demco Recon # DM8550045 be Used on a Truck with a 6-1/2 foot or 5-1/2 foot Bed
  • Technically you can use the Demco Recon # DM8550045, that has a 3" offset, on a truck that has a 6-1/2 foot or 5-1/2 foot bed, but you will not have the trailer-to-cab clearance for tight turns like you would with an 8 foot bed. If you had industry standard base rails then I would recommend using a sliding 5th wheel hitch, or a stationary hitch along with a Reese Sidewinder like part # RP61421. Since you have a gooseneck hitch there are a few options available but they are mainly for...
    view full answer...


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Info for this part was:

Expert Research:
Michael L
Written by:
Lindsey S
Expert Research:
Michael H
Installed by:
Jeff D
Expert Research:
Jameson C
Expert Research:
Adam R
Video Edited:
Kathleen M
Updated by:
Laura H
Expert Research:
Jeffrey L
Updated by:
Amanda M

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