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  1. 5th Wheel Pin Box
  2. Reese
  3. Lippert 0115
  4. Lippert 1116
  5. Lippert 1716
  6. 20000 lbs
Reese Sidewinder 5th Wheel King Pin with Rotating Turret - Lippert 1716 and 0115 - 20,000 lbs
Reese

Reese Sidewinder 5th Wheel King Pin with Rotating Turret - Lippert 1716 and 0115 - 20,000 lbs

Part Number: RP77FR
In Stock
$1,520.26
5th Wheel Pin Box
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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 5th wheel pin box part number RP77FR or order online at etrailer.com. Free expert support on all Reese products. Great prices and Fastest Shipping for Reese Sidewinder 5th Wheel King Pin with Rotating Turret - Lippert 1716 and 0115 - 20,000 lbs. 5th Wheel Pin Box reviews from real customers.
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  • Reviews (43)
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Reese 5th Wheel Pin Box - RP77FR

  • Lippert 0115
  • Lippert 1116
  • Lippert 1716
  • 20000 lbs
  • Upgraded Pin Box
  • Provides Turning Clearance
  • Reese
  • Rigid Suspension
  • 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.


Features:

  • 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


Specs:

  • Designed to replace the following pin boxes:
    • Lippert 0115, 1116, and 1716 models
    • Fabex 500 Series and 700 Series
    • RBW 7019 and 70208 models
  • 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

Therefore,

(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
  • 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



68220 Reese Sidewinder 5th Wheel King Pin with Rotating Turret - 20,000 lbs

68200 Spacer Kit for 20,000 lb Sidewinder Kingpins - Wide Trailer Wingset

68202 Sidewinder Wedge Kit for 20K Reese ELITE, M-Series, or ProSeries Fifth Wheel Trailer Hitches

Installation Details RP77FR Installation instructionsAlternate Instructions RP77FR Installation instructions


California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

4.8

43 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.

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



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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.



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



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



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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.



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The sidewinder is an Awesome Product thanks etrailer!!



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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...



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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!



by:

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



by:

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.



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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.


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Show More Reviews

See what our Experts say about this Reese 5th Wheel Pin Box

  • 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 # RP34FR. If instead it's 9 you need the part # RP77FR and you have the 1116.
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  • Distance from Center of King Pin to Front Set of Bolt Holes on a Reese Sidewinder Pin Box 5AB-E510-7
    Hey Gary, According to my research, the Reese Sidewinder 5th Wheel King Pin with Rotating Turret RP77FR (5AB-E510-710) measures 18-3/4" from the center of the king pin to the front set of mounting holes. That exact model isn't available anymore, but we have the Reese Sidewinder # RP77FR that will work in it's stead - this one just has multiple mounting holes so it can replace a variety of pin boxes. Did you find an older model that you're wanting to fit to your 5th wheel, or are you...
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  • Troubleshooting Worn Out Wear Disc of Sidewinder.
    Its definitely time to replace the wear disc. I wouldn't recommend you continue to tow with it like that as it would potentially start to damage the Sidewinder. Its a bummer we don't carry it anymore but the wear disc repair kit is Reese part number 94316 .
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  • Reese Sidewinder Replacement For A MORryde Cushioned Pin Box RPB72-1116
    Hey Gordon, For a MORryde pin box with an 1116 bolt pattern you would need the Reese Sidewinder # RP77FR. I'm guessing you have a B&W Companion OEM and a puck system in your truck bed? For a B&W hitch you'll also need wedge kit # SWW-06 to lock the king pin of the Sidewinder into the jaws of the hitch. This wedge kit will replace the universal one that's included with the Sidewinder and better fit the funnel of the hitch for more even pressure.
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  • Can a B and W Companion Fifth Wheel Hitch be Used with a Sidewinder Pin Box or Not
    Hey Alex, does your Companion hitch attach to a Ford OEM puck it by chance or does it attach only with a center gooseneck hitch post? If it's to the OEM pucks then you can use a Sidewinder but not if it's just the gooseneck attachment. Since you said B and W Puck Hitch that makes me think you can use a Sidewinder and since you have the 1716 you'd need the part # RP77FR. The issue is where the hitch attaches to the truck. If it's a center post the Sidewinder puts too much stress on it. If...
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  • What Info is Needed to Pick Out Sidewinder Pin Box for Trailer
    Hey Mike, yes if you can get us the pin box model that you have now I can see which Sidewinder you'd need. This can be determined by the info that's on the pin box like you said or if you let me know what RV you have I can see if we already have figured out what pin box it has.
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  • 5th Wheel Hitch Options For 2019 Ram 2500 Short Bed With RamBox For Light 5th Wheel
    We can get your 2019 Ram 2500 short bed with RamBoxes set up with a 5th wheel hitch, and you'll need a fixed hitch instead of a slider because your 5th wheel trailer will require a Sidewinder rotating pin box. A Sidewinder moves the pivot point from the hitch jaws to the turret, and without it you won't be able to make turns because a standard pin box will contact your RamBoxes. That said, since you asked for options, for a 5th wheel hitch, here is one that I highly recommend for a light...
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  • 5th Wheel & Sidewinder Needed For 2021 Ram 2500 With RamBox
    So for your set up, a 2021 Ram 2500 short bed with the RamBoxes, you will need to use a Sidewinder in order to have the clearance to tow a 5th wheel. The Goose Box doesn't move the pivot point and an offset ball just won't be enough for turning clearance; meaning your only option is the Sidewinder. I can understand wanting to avoid the Sidewinder route due to the added cost of the Sidewinder, but without it you will basically not be able to make any type of turn without damaging your...
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  • Is The Reese Sidewinder Compatible With Curt A16 5th Wheel Hitch
    Unfortunately, the Reese Sidewinder 5th Wheel King Pin with Rotating Turret # RP77FR you reference is not compatible with Lippert Rhinos.
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  • Reese Hitch and Sidewinder Recommendation for 2019 GMC Sierra 3500 Short Bed with OEM Rail Kit
    Since we know you have a Rota-Flex pin box on your trailer we also know that there is a Sidewinder that can fit as a replacement. We do need to know more info though to determine which specific Sidewinder you need. You'll need to look for an LCI number like 1621, 1116, 1716 etc. and we'll know which is the correct fit. If you have a Lippert 1621, 1621HD or 0719 you'd want the part # RP34FR. If you have a Lippert 1116, 1716 or 0115 you'd want # RP77FR. So the other part of this that gets...
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  • Replacement Hardware for Resse Sidewinder
    Hello Clayton. The mounting hardware that you need for the Reese Sidewinder like # RP77FR: -(8) 5/8-11x2 Grade 8 Bolts -(8) 5/8-11 Grade 8 Nuts -(8) 5/8 HD Flat Washers -(8) 5/8 Conical Lock Washers The # GY86FR has most of the correct hardware, but I have to recommend that you use Conical Lock Washers (which are not included in the # GY86FR) for installing the Reese Sidewinder as it states in their instructions. I have included a copy of the instructions where you will see on page...
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  • Is There Longer Pin Box to Replace Lippert 1716 for Fifth Wheel Hitch
    Hey Tom, I might have a solution for you but there isn't a longer pin box available designed to replace your Lippert 1716. But if you were wanting a longer pin box because you wanted better turning clearance we do have a solution for that with the Lippert Sidewinder part # RP77FR which gives you 22-1/2 inches of additional turning clearance since it moves the pivot point back that far. Is why you wanted a longer pin box?
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  • Does Reese Sidewinder 5th Wheel King Pin Need to be Disassembled for Regular Grease Maintenance
    Hey Mark, thanks for reaching out! There is a grease zerk fitting in the top of the pin box that should prevent you from having to disassemble the Reese Sidewinder 5th Wheel King Pin with Rotating Turret # RP77FR in order to grease it.
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  • What Kind of 5th Wheel Hitch do I Want for My 2024 GMC Sierra 1500 Crew Cab with 5 3/4' Bed?
    Hello Mark, I'm glad you reached out! The Curt Q20 # C16130 is not compatible with rotating pin boxes such as the Reese Sidewinder, Reese Revolution, and 5th Airborne Sidewinder. Since you have a 5 3/4' bed, you'll need either a sliding hitch or a fixed hitch with a rotating pin box to ensure proper clearance. If you choose a sliding hitch, I recommend the Demco Autoslide 5th Wheel Trailer Hitch # DM94AV, which includes both the hitch and custom rails for your 2024 GMC Sierra 1500. If...
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  • Diagram of the Reese Sidewinder 5th Wheel King Pin with Rotating Turret RP77FR
    Thanks for the drawing Chuck! I have attached a below a complete diagram for the Reese Sidewinder 5th Wheel King Pin with Rotating Turret item # RP77FR. This is every dimension we have for the pin box you are looking at. It should definitely help you determine the king pin height. Feel free to email me directly or message in the comments below if you have additional questions.
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  • Wedge for Hensley Trailer Saver TS3 With Sidewinder
    Hi Michael; if you want to use your TS3 with the Reese Sidewinder # RP77FR you only need the universal wedge that comes with it. This is the best option according to Hensley. However, your TS3 will have to be modified. When I reached out to Hensley they said they have the parts to do this so you will need to contact them about making the modification.
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  • Looking For Dexter Axle SC165-39
    Hello Destin, thanks for reaching out. We do carry axles here so we may have an option for you. I was not able to find any references for the part number SC165-39 you provided though, so I will need you to provide a few more specs in order to narrow down the correct replacement. Specifically, I will need to know the weight capacity, axle type (torsion or leaf spring), the hub face length and spring center length (if applicable). There should be a tag or sticker on the axle that has this...
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  • Recommended Sidewinder Pin Box For A 2025 Keystone Cougar 2700BH
    To determine the correct Sidewinder for your 2025 Keystone Cougar 2700BH we'll need to first determine the bolt pattern. There's typically a sticker some where on the pin box or mounting ears that has a serial number, LCI item number, and RPO number that we can use to look up the pattern. I've attached a picture of one below so you know what you're looking for. If you can't find the sticker then you'll need to do a bit of measuring to determine the bolt pattern. I've attached a help article...
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  • Can a Fixed 5TH Wheel Hitch Be Installed On a 2024 GMC Sierra 2500 With 6-3/4' Bed Prep/Puck System?
    Typically it is recommended to use a sliding 5th wheel hitch like the B&W Companion Slider # BWRVK3775 for a 2024 GMC Sierra 2500 with the shorter 6-3/4' bed and the factory prep/puck system. Personally I prefer the Demco Autoslide 5th Wheel Hitch # DM29GV since it will automatically slide back up to 14" as you turn. This will give you the clearance needed to make full jack knife turns with most 5th wheel trailers. A fixed hitch like the B&W Companion # BWRVK3710 are only ever recommended...
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  • Lippert Road Armor 1116 19k Pin Box Replacement Recommendation
    The safe GVWR rating is 80-85% of total weight capacity to allow for any additional weight added to the trailer. So for a 16k pin box you'd be looking at 12,800lbs - 13,600lbs as a safe weight. I looked up your current pin box with the LCI Number you provided and you have a Lippert 1116 19k so to switch to a sidewinder the compatible fit is the Reese Sidewinder 5th Wheel King Pin with Rotating Turret - Lippert 1716 - 20,000 lbs Item # RP77FR.
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  • Does Having a Short Bed on a 2024 Chevy Silverado 3500 Require Me to Have a Sliding 5TH Wheel Hitch?
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Info for this part was:

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Expert Research:
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Updated by:
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Employee Carrie F
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