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Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs

Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs

Item # RP34FR
Our Price: $1,802.94
Fifth Wheel King Pin
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Make tight 90-degree turns with your short-bed pickup while towing your fifth-wheel trailer using this extended pin box. The pivoting action lets your trailer turn and clear the cab so you don't have to exit your truck to adjust when turning. 1-800-940-8924 to order Reese fifth wheel king pin part number RP34FR or order online at Free expert support on all Reese products. Great prices and Fastest Shipping for Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs. Fifth Wheel King Pin reviews from real customers.
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Reese Fifth Wheel King Pin - RP34FR

  • Fabex 663
  • Fabex 665
  • Lippert 0719
  • Lippert 1621
  • Lippert 1621HD
  • M and M 663
  • M and M 665
  • Lippert Rhino
  • Upgraded Pin Box
  • Provides Turning Clearance
  • Reese
  • 20000 lbs GTW
  • Rotating Turret

Make tight 90-degree turns with your short-bed pickup while towing your fifth-wheel trailer using this extended pin box. The pivoting action lets your trailer turn and clear the cab so you don't have to exit your truck to adjust when turning.


  • 5th-Wheel pin box lets you make tight turns while towing your trailer, even in your short-bed pickup
    • No need to get out of your truck to adjust a 5th-wheel slider
  • Rotating turret acts as new pivot point, letting you clear your truck's cab while turning
    • Pivot point is moved 22" towards the rear, offering plenty of clearance while still keeping your load safely in front of the rear axle
  • Easy hookup and disconnect - king pin slides into your 5th-wheel trailer hitch from almost any angle
  • Locking wedge prevents king pin from rotating inside your Reese or Pro Series 5th-wheel hitch
    • Some other 5th-wheel hitches may require custom wedge (sold separately)
  • Simple to maintain - just lubricate king pin, screw, and pivoting shaft
  • Bolt-on installation - replaces your existing 5th-wheel pin box
    • A 1-1/8" socket and wrench are needed for proper installation


  • Designed to replace the following pin boxes:
    • Fabex 663 and 665
    • Lippert 0719, 1621 and 1621HD
    • M&M 663 and 665
    • Lippert 1716 and 0115 (spacer kit required - sold separately)
    • Lippert Rhino
  • Weight capacity: 20,000 lbs
  • Maximum pin weight: 5,000 lbs
  • Clearance: see formula below to ensure proper clearance
  • Limited lifetime 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 fifth-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 20,000-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 Design

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 fifth-wheel hitch.
  4. The king pin connects to the fifth-wheel trailer hitch in your truck bed.
  5. The arm is rated at 20,000 lbs.

Get 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" away from the cab.

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

69220 Reese Side Winder Fifth-Wheel Pin Box Coupler with Turret and Hardware - 20K

Replaces Reese 68220

Installation Details RP34FR Installation instructions

Customer Satisfaction Score:

Customer Reviews

Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs - RP34FR

Average Customer Rating:  4.9 out of 5 stars   (28 Customer Reviews)

Make tight 90-degree turns with your short-bed pickup while towing your fifth-wheel trailer using this extended pin box. The pivoting action lets your trailer turn and clear the cab so you don't have to exit your truck to adjust when turning.


Had a 16k sidewinder inbox it cracked traded it out for a20k w/o air bag much beefier unit etrailer helped me out to warranty the pinbox with out a problem Reese drug me along for 3months with no results.
But Paula T. got me taken care
Side note I don’t think it’s right to have to pay freight to return a faulty part that is not my fault. Just wrong. If it was my fault that would be ok. etrailer should change there policy on this !!!!


My only regret with this kingpin is not switching to it sooner. I recently changed up my entire set up to this kingpin and a Hensley BD5 Trailer Saver hitch, for my 41ft Jayco Seismic Wave. If you use a slider hitch, whether auto or manual, you know there's a significant lag in response from the trailer when turning and backing. This kingpin eliminates that lag time. My hitch/kingpin combo is a pricey upgrade, but if you tow often then it will be money we'll spent.



Its been a year since I upgraded my hitchkingpin set up and my feelings are still exactly the same. The kingpin is great. I love how much faster the trailer responds, especially when backing up, compared to my old slider hitch. Definitely money well spent.


I needed the sidewinder hitch due to transferring from a standard bed truck to a short bed. I installed it my self and the setup was very easy. It works just as it should!


I drive a RAM 2500 shortbox diesel with the Rambox feature that I really like. It also had the factory puck system in the bed. But when I found the 5th wheel I wanted i soon realized that the stock Lippert pin box would not work with my truck. I wanted to use the Curt A20 hitch that I already had but assumed that I would need to replace that for a sliding hitch. When I discussed my issues with the etrailer support tech he told me about this Reese sidewinder and all the reasons it would work with my truck where nothing else would. He was spot on with his advice. I've now had the Reese for a year and have been out many times without issue. I can even make 90° turns and the trailer cap doesn't even come close to the truck cab. I can even open the Rambox most of the way with the trailer mounted. I'm very happy with the product. This hitching stuff can be complicated and risky and I'm glad I talked to the support team before I may have made a stupid mistake.


Needed a pin that would fit my short bed and Ram Boxes. After extensive research I coupled this along with the B&W patriot 18K hitch and I have full clearance on my trailer and cab. I now have an extra 22 inches that other hitches wouldn't and couldn't give me.


Having a Ram 3500 Megacab, short bed, I was terribly worried about hitting the cab with my Momentum toy hauler given it's 102" wide. My choice was slider or this Reese Sidewinder. I chose the Sidewinder and darn glad I did. It works as advertised and I can turn a full 90 degrees with about 5" of clearance between the cab and my front nose of the trailer. Some words of caution: this pin box is heavy! Get it professionally installed by your RV dealer. The wedges for your particular hitch will take some getting used too. Move wedge back to hitch, move forward to lock into place. Even still, I need to lay in the bed and have rigged up a heavy wire to assisting getting that wedge tight in the funnel. If you don't, the hitch will move on corners and you feel a big shift of weight.

Bottom line, I like it, it was the right decision for me and didn't take up any more payload than necessary unlike a heavy slider hitch. Recommended! And etrailer delivered on time as promised.


For those who are considering a “slide hitch” this is a better alternative. Rather than get into a bind and need to release the slide feature, the Sidewinder pin box pivots farther back than a typical pin box so it never puts your pickup in a compromising position. I purchased a 20k standard hitch to use in conjunction with the Sidewinder. I have no regrets and I highly recommend this pin box.


It is the best thing that a novice 5th wheel owner could ask for. Having to go get a class A license to pull my trailer, it made it easy for me to pass the test with litte 5th wheel experience but a lot of bumper tow experience. The mechanical aspect of this unit is what sold me. Few moving parts and no sliding components made me feel safe and confident while navigating my trailer in some difficult situations. And pulling a 19,000 pound trailer accross California's raods, you need all the confidence in your equipment you can get.


Got expert advice from David B. This arrived along with my Reese fifth wheel hitch and they work beautifully together to solve my problems with towing a fifth wheel with a ram that had a ram box. Giant pain in the butt but problem has been resolved thanks to y’all


The sidewinder works exactly as advertised, We installed this on our 41' Heartland Landmark 365 and the increase in manuverability is awesome.
The quality is top notch and I would recommend this product all day long.
I installed this myself and it bolted right into place with zero issues.
If your on the fence about purchasing this product I highly recommend pulling the trigger, you won't regret it...


It works great on my 5th wheel 40 ft toy hauler momentum


The sidewinder is an Awesome Product thanks etrailer!!


Excellent customer service. Teresa was very helpful, listened to my setup questions and knew right where to go. I enjoyed the buying experience and felt confident that my money was going to the right product and company. Thanks Teresa and etrailer.


Works as advertised. Heavy duty hitch. Much safer than what came with the RV.


UPS ran a day late. The hitch is awesom e.







Parts where on back order per information given by my 2 other vendors etrailer had it in stock and arrived on time before original ETA
As a owner of a small business etrailer is great to work with and always helpful.


Good quality, I like the caps. Fits gre at.


The A team!
E trailer and camco sewer
hose support system is excellent
Nice compact storage good quality.
Great customer service and quick shipping.


I really like this. Simplifies the dump for sure.


Excellent product! Took seconds to set up and worked prefect! Unfolds easy , nice carring handle. I would highly recommend this. Price and shipping is great.

Show More Reviews

See what our Experts say about this Reese Fifth Wheel King Pin

  • Recommended 5th Wheel Hitch for a 2024 GMC Sierra 3500 W/ OEM Pucks
    You can use a fixed hitch like the B&W Companion OEM 5th Wheel Hitch for Chevy/GMC Towing Prep Package # BWRVK3710 with your standard bed GMC Sierra, but you'd need to use a rotating pin box along with it like # RP34FR due to the limited turning clearance. If you didn't want to use a rotating pin box then you'd have to use a sliding hitch like the B&W Companion OEM 5th Wheel Hitch w/ Slider for Chevy/GMC Towing Prep Package # BWRVK3775. You'd also likely still need help removing the...
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  • Can I Use A Curt A20 With A Reese Sidewinder On A Ram Truck With The Rambox
    Hey Jay. It sounds like you are on the right track here because a sidewinder pin box will be your only option for pulling your 5th wheel since you have a short bed truck with the Rambox. That said, you are right that the Reese Sidewinder cannot be used with the Curt A20 5th wheel hitches. So, you would either need to use a different hitch like a B&W # BWRVK3255 or find a different compatible sidewinder. Using a B&W hitch is what I recommend since the Reese sidewinder is the only aftermarket...
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    You currently have 2 options since your current Airborne Sidewinder pin box is not going to fit your new 2022 Vengeance Rogue toy hauler. We do have the new Sidewinder # RP34FR which has added the new bolt pattern for the Lippert Rhino pin box. Personally I recommend switching to the Demco Autoslide 5th Wheel Trailer Hitch # DM8550034 with the Locking Plate # DM76FR. This will fit most 12" wide pin boxes without a locking plate but for unique pin box like your Rhino you will need the...
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  • Does Reese Sidewinder RP34FR Work With Reese M5 5th Wheel Hitch?
    Yes, the Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs # RP34FR is 100% compatible with the Reese M5 5th Wheel Trailer Hitch # RP58FR. The Sidewinder comes with the wedge you'd need, but in case you lost it or don't have it, you can buy another one here: Sidewinder Wedge Kit # RP44FR.
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    For your 2022 Ram 3500, I recommend using the B&W Patriot 5th Wheel Trailer Hitch - Dual Jaw - 18,000 lbs item # BWRVK3255. This hitch has an 18,000 lbs capacity and is compatible with B&W Rails item # BWRVK2605 and the Reese Sidewinder item # RP34FR. The hitch height is 16" - 19". The Reese Sidewinder 5th Wheel King Pin with Rotating Turret item # RP34FR you referenced is compatible with your Lippert 1621HD pin box.
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  • Comparing The RP74FR And SWW-06 Wedge Kits For A B&W Companion 5th Wheel Hitch
    The Reese # RP74FR is more of a generic fit, like the one that comes with the pin box # RP34FR. The # SWW-06 has a more of a cone shape to match up to the funnel of the B&W Companion # BWRVK3670 and will spread the pressure more evenly across the hitch head so it's the better option.
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  • Recommended Sidewinder Pin Box For A Grand Design Reflection 28BH
    Based on the information you provided you have a 1621 bolt pattern so the Reese Sidewinder 5th Wheel King Pin with Rotating Turret # RP34FR would be the correct replacement for you. This will come with a generic wedge kit, but the # SWW-06 will be a better option to go with the B&W 5th wheel hitch you were looking at before.
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  • Sidewinder to Replace Trailair for Lippert 1621 and Lightestweight Fifth Wheel Hitch
    I sent the picture of your pin box to Lippert so they could identify it and they stated you have a Lippert 1621 model so the correct cushioned Sidewinder would be the part # RP61422 that you referenced. If you didn't want the cushioned feature you could also use the Sidewinder part # RP34FR. Your Andersen Ultimate can't be used with the Sidewinder and since you are wanting the lightest hitch possible that would be the Demco Recon part # DM8550043 which only weighs 89 lbs. You will also...
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  • How to Determine What Sidewinder Will Fit 5th Wheel Trailer
    Since that's the only number you can find then we can still get you the right Sidewinder, but you'll need to do some measuring to be sure you get the right one. Reason is, I reached out to Lippert to try and identify what pin box you have, and they said they weren't familiar with that number and had not seen something like that so it wasn't the pin box or chassis serial number. I have added a link to a help article called "Measuring to Determine the Correct Replacement Pin Box for a 5th-Wheel...
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    The Curt CrossWing Lightweight Gooseneck-to-5th-Wheel Trailer Hitch Adapter # C32DR can not be used with a rotating pin box like your Reese Revolution, unless it is locked out and being used as a normal pin box. Rotating pin boxes require 4 points of contact between the 5th wheel hitch and the truck. To use the Curt CrossWing with your rotating pin box you would need the base rail version # C86JR and some base rails for your 2021 Ford F-250, like part # C79BR. The wedge kit # C43NR for...
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  • Wedge For Reese Sidewinder RP34FR & Demco Recon 5th Wheel Hitch
    Hey John, Thanks for the purchases and you have everything you need except the wedge. I verified directly with Reese that the correct wedge to use with the Demco Recon 5th Wheel Trailer Hitch # DM8550043 and Reese Sidewinder # RP34FR is the following: - Sidewinder Wedge Kit for B&W, Demco, and Husky Fifth Wheel Trailer Hitches # RP74FR The other wedge is for the older model of Sidewinder, and the # RP74FR is the only applicable version for this model of Sidewinder with the Demco hitch.
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  • 2017 Ram 2500 5th Wheel Hitch Recommendation for RamBoxes
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  • Will Sidewinder Pin Box Still Help Even If It Doesnt Allow for Full 90 Degree Turn
    A Sidewinder like the part # RP34FR will be the best way to give you additional turning clearance, but like you measured and determined, you would not get the ability to make a 90 degree turn. You will still be able to make very tight turns, but just not to 90 degrees. In nearly all trailering situations the ability to make a 90 degree turn is not needed. Getting very close with the Sidewinder should be just fine. Just be sure to remember that you can't go all the way to 90 degrees.
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  • Extended Length 1621 Pin Box and Increasing Turning Clearance From Replacing Pin Box
    Yes, the Lippert part number you identified, 119119 does mean you have a 1621 pin box. The use of the term extended pin box however is not indicating that it is a longer version of an otherwise same pin box, it is simply greater in length relative to the various other model numbers available. For example, a Lippert 1621, Lippert 1621HD and Lippert 1716, three very common Lippert Pin Boxes, are all considered to be "extended length". This is relative to the length of other common Lippert...
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  • Can a Slider 5th Wheel Hitch Be Used on a 2016 Chevrolet Silverado 1500 with 5.8 Foot Bed
    I do have an option for you but a manual sliding 5th wheel hitch like the Curt E16 5th Wheel Trailer Hitch part # 16516 will not allow for proper turning clearance between the cab of the truck and loft of the trailer while executing a 90 degree turn on a truck with a bed shorter than 6-1/2' long. In order to obtain sufficient clearance you will need to use a fixed 5th wheel hitch and a rotating pin box. For a fixed 5th wheel hitch I recommend the Reese 5th Wheel Trailer Hitch part # RP30047...
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  • Which Reese Sidewinder King Pin with Rotating Turret Replaces the Lippert 1116 Pin Box
    Yes, the Reese Sidewinder 5th Wheel King Pin with Rotating Turret, # RP34FR is designed to replace the Lippert 1116. It will also replace the Lippert 1716, 0719, 1621 and 1621HD, the Fabex 663 and 665 and M&M 663 and 665. The weight capacity of the # RP34FR is 20,000 lbs. and a max pin weight is 5,000 lbs. Please note the linked product review video below.
    view full answer...
  • Which Sidewinder Will Replace Lippert Rhino Pin Box
    Hey Ryan, Indeed there is a Sidewinder that has the correct bolt pattern to replace your Lippert Rhino pin box. I went ahead and verified directly with the manufacturer for you that the correct replacement is the following: - Reese Sidewinder 5th Wheel King Pin with Rotating Turret # RP34FR The # RP34FR has a 20,000 lb capacity, and the Open Range 5th wheels each have a GVWR well under that so you won't have any issue with fit or strength, so it's the perfect option to tow with your...
    view full answer...

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Info for this part was:

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