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Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000-lb Capacity

Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000-lb Capacity

Item # RP78FR
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Retail:$2,140.33
Our Price: $1,758.93
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Fifth Wheel King Pin
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Shipping Weight: 150 lbs
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Product Expert Kathleen M

Is this right For you? Product Expert Kathleen M says:

Yes, if you:

  • Like the overall clean look of this coupler compared to bulkier competitors
  • Find your stuff inside the RV all jumbled and want to save your truck, trailer, and your passengers from being beat up by bad roads

No, if you:

  • Get annoyed by having one more thing to check before hitting the road - the air pressure on this needs to be monitored and adjusted
  • Have a trailer that weighs over 20,000 lbs
The 5th Airborne premium fifth wheel air-ride extended pin box coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock. 1-833-496-1390 to order Reese fifth wheel king pin part number RP78FR or order online at etrailer.com. Free expert support on all Reese products. Guaranteed Lowest Price and Fastest Shipping for Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000-lb Capacity. Fifth Wheel King Pin reviews from real customers.
  • All Info
  • Reviews (81)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Reese Fifth Wheel King Pin - RP78FR

  • Fabex 600
  • Lippert 1621
  • Lippert 1621HD
  • Lippert 0719
  • Lippert Rhino
  • Lippert Turning Point
  • 20000 lbs GTW
  • Absorbs Road Shock and Reduces Chucking
  • Reese
  • Upgraded Pin Box
  • Fixed Turret

The 5th Airborne premium fifth wheel air-ride extended pin box coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock.


Features:

  • Reduces the negative impact of vertical shock and longitudinal chucking
  • Air bag located on top of the pin box instead of the bottom, making it easier to make adjustments
  • Innovative forward pivot design
  • Air line comes standard for easy air fill and pressure relief valve prevents overfilling
  • Passes SAE/CSA testing standards


Specs:

  • Designed for use with the following pin boxes:
    • Lippert 1621/1621HD
    • Lippert 0719
    • Fabex PB 600 Series
    • Rhino Series
  • Gross trailer weight capacity: 20,000 lbs
  • Pin weight capacity: 5,000 lbs
  • Limited lifetime warranty


94420 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000 lbs Capacity

Installation Details RP78FR Installation instructions



Video of Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000-lb Capacity

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




Video Transcript for Review of Reese Fifth Wheel King Pin - Upgraded Pin Box - RP78FR

Hello, everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Reese 5th Airborne premium fifth wheel air ride coupler, has a 20,000 pound weight capacity. Now this 5th Airborne fifth wheel air ride extended pin box coupler will act as a buffer between your tow vehicle and the trailer. It minimizes the abuse sustained from turbulence on the road. This one here is designed for use with the following pin boxes. It'll work on Lippert 1621 and 1621HD, works on the Lippert 0719, the Turning Point series, the Rhino series, and also on the Fabex PB 600 series pin boxes.

Now using the air ride technology, this pin box would work to reduce chucking, help stamp out road shock, provides a nice, smooth towing experience. The air bag is located at the top of the pin box instead of on the bottom, makes it a lot easier to make your adjustments. Wanted to to zoom in here and just show you right up here is your air manifold, comes standard for an easy air fill and it uses a pressure relief valve to prevent overfilling. Right over here on this side, there's a little opening here. This is your air level indicator on the side.

So when you're filling it up, you'll be able to see it'll indicate low, medium, and maximum air pressure. Now, this does use an innovative forward pivot design and it does pass the SAE and CSA testing standards. It does, as you can see, include the mounting hardware. I have it all laid out here. Again, the specs on this, the gross trailer weight capacity is 20,000 pounds and the pin weight capacity is 5,000 pounds.

But that should do it for the review on this Reese 5th Airborne premium fifth wheel air ride coupler with the 20,000 pound weight capacity..


Customer Reviews

Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000-lb Capacity - RP78FR

Average Customer Rating:  4.7 out of 5 stars   (81 Customer Reviews)

The 5th Airborne premium fifth wheel air-ride extended pin box coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock.

by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


Love this pin box. The air ride provides the smoothest towing ride for our 36ft 5th wheel as well as our Chevy 2500HD High County over this rough spots and rail road tracks. This is our 2nd one as we just sold our last 5th wheel and felt we just had to have this same smooth ride with our newest RV. I’ve got to add that the sales and support by Tara G. Was outstanding, very knowledgeable and super friendly service. Many thx




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


This kingpin is awesome! Short bed fifth wheel towing solved. I tow with a Crewmax Tundra and I never worry about hitting the cab. This pin solves the need to have a slider hitch (which are heavy, cumbersome and expensive. I needed to watch my weights as well since I tow with a 1/2 ton. No additional weight with replacing the pin. The ride is great too having the shock absorber and air bag in the pin box. Can't say enough good things about it. Once the wedge is set and aligned properly, you are set. Only negative is you need to drop and hook up straight on. It doesn't work well when dropping/hooking at an angle. I keep a torque wrench and a 5/8" socket with me in case I need to adjust the turret back to the "straight" position.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I like my airborne fifth wheel air ride coupler. Every thing inside out of the sun clean and neat looking. the best part is when there (some boon docking ) all the draws and cabinets are closed. A bad dip and bump is nearly smoothed out about five miles from home. Not worried about damaging 5th wheel. More relaxed drive. Yes it leaks some no big deal just like checking the tires. glade I did it!




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


This king pin has been one of the best purchases for hauling my fifth wheel with a short bed ram with ramboxes.


Comments
Ive pulled my 5th wheel about 6,000 miles with the sidewinder. I do seem to have to add air everytime I hook it, but the ride quality is great and the maneuverability has made my purchase hands down the best upgrade I did to my fifth wheel.
Brian H - 02/13/2022


by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


We just recently were able to take the 5th wheel out for a trip after installing the air ride coupler. Our ride was soooo much better, no more jerking in the cab and things bouncing round in the trailer. So glad that we made the purchase.


Comments
Still love it! So glad that we purchased it.
Calvin D - 03/31/2016


by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin



This Airborne Kingpin box works great!
Our
hitch location in second-hand truck seems located in less than ideal position. This resulted in lots of "bucking & chucking" but Air-ride has changed it to gentle float at worse.

Great product at fair price!




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


Read several reviews and decided to go with the Reese airborne. Have purchased from etrailer before and always had great service. Pin arrived in a week and the price was better than any place else.


Comments
Great, will not be without one
Mike F - 02/15/2018


by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I have received the Reese airborne, installed the turret, have not put it on the trailer yet. Will do next week (29th). Right now I am very happy after looking it over. Thankyou.


Comments
Great pinbox, I have recomenended it on face book many times.I hope the persons looked into the Airborne and purchased it.
Earl R - 07/27/2020


by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


The air valve stem would not accept air. Replaced the valve core to correct the problem. Fiberglass fairing on LongHorn 5th wheel would not fit new king pin box as it is longer that the original one. Just finished about 3500 miles with this new King Pin box, finding the ride somewhat improved, especially on rough freeway often found going through big cities. Did installation myself by first pushing box onto hitch, then using truck positioning and trailer jacks, was able to get box into correct position. Later repeated the exercise to lower the box one row of bolt holes to better match original king pin height.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


After having used the 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret for about 7,500 miles (one year of towing for me), I would not recommend this pinbox setup unless it was absolutely necessary for your application.

PROs: It does provide a nice ride quality (albeit with the occasional odd popping noise) and provides additional clearance for shortbed trucks (and the ability to pull a fifth wheel with a RamBox equipped Ram Pickup).

CONs: Poor quality. The turret is not completely square, it requires consistent maintenance for it to operate smoothly and the directions I received with the packaging was not clear (and did not match the posted online instructions which were more up to date). Also, as with all the recent Reese products I have purchased, the powder coat/paint was damaged on delivery and easily flakes off over time.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


Air fill valve was damaged in shipment ( as mentioned in many reviews). Etrailer had mfg send a new one overnight. I suggest that you ship with the fill valve not installed, having the customer install it when attaching to 5th wheel. Mfg sticker specifies that the attaching bolts be torqued to 200 ft. Lbs. Had to rent a torque wrench to install, thanks to my nephew, he was able to to apply enough pressure to achieve that setting. Hard for an old retired person to exert that much force.

Now the good stuff. We traveled from California to New York. By the time we got there, my back was in bad shape due to the severe chucking. Ordered the pin box to be delivered to one of our Campground stops. We're now half way home, and my back is not hurting at all. Chucking is gone, great product!




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I received this just in time to install on our Reflection 303RLS before our winter trip to Bosque del Apache in New Mexico. Installation wasn't too difficult; I mainly did it myself with a little help from my wife and a lot of help from a hydraulic jack in my truck bed to hold one end in place. I tested it out on a short 15 mile tow with my Ford F250 and adjusted the air bag position and air pressure around 100 psi to get a nice ride. Now, after towing over 2000 miles of highways of varying quality, I can definitely report that the ride has been improved substantially. Also, I did not have to add any air over two full days of towing in each direction, so earlier leak problems seem to have been solved.

Just to clarify, my ride problem has always been up and down motion on uneven road surfaces, even on some interstates with bumpy lanes due to heavy truck traffic. I never experienced "chucking" problems, either with the old Lippert kingpin box or this new Reese Airborne box. With the improved ride that I experienced on this most recent trip, I am much more relaxed when driving these bumpy or wavy roads, and my wife is much happier not to hear my grumbling about poor highway maintenance!




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I am very happy with this Sidewinder. No more having to slide my hitch in order to get my trailer out of storage. The only trick is making sure you are lined up with the pin box so the wedge engages correctly. You can hook up at any angle by just pushing the pin box so it lines up with your approach angle. It takes a little more time, but it is far easier than using an auto-slider.

Once you are hooked up, you no longer have to worry about tight turns or backing into spaces.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


Very well made pin box. Only had it on my 5th wheel for a month & traded the rig for a new 2017 fiver. It worked GREAT for the two trips we had it on the trailer. I removed this Reese pin box thinking that I may use it on my new rig, but the new fiver came with a similar air suspension box, so this one has been sitting in my garage for 10 months.
Anyone want a “like new” Reese air ride pin box for $400.00, please let me know.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I purchased this based on price and reviews I read. Definitely helps with the ride! Alot less bucking and chucking over dips and bridge crossings. I did have to do a bit of tinkering with air pressure in the bag and location of the bag to get the ride right. This is the reason I didn't give it 5 stars. Access to the lower air bag bolts are a pain to get at. Luckily I'm an auto technician and have a wide variety of tools to do it. I don't know how anyone would do this with a basic rachet without a flex head. If Reese ever redesigns this pin box they should add some access holes to the bottom for this adjustment. Only other issue is small.....the pin box interferes with my b&w release pin. Not a big deal, just have to put the lock pin in upside down. This box extends further past the pin




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


The Reese 5th Airborne pin box made the ride so much smoother then al the chucking me bouncing I had before. The order arrived quickly and was easy to install. Minor damage to the air stem in shipping that was no fault of etrailer, but was able to air up the bladder. Great investment for a smoother ride.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I pull a 34’ Reflection 5th wheel that is within the rated towing capacity for my 3/4 ton GMC, although I noticed it would bottom out when I went over abrupt bumps at highway speed. I added rear stiffeners to help that issue, but wanted to soften up the effect on the trailer by adding a cushioned pin box. I decided on the 5th Airborne to provide that softening effect. After a year in service I’ve noticed a big improvement in the ride, while the bouncing of the trailer is greatly reduced. The pin box was light enough for easy installation, while tough enough for the service. I have over 5,000 miles on it now and it is still working perfectly.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


Installed the airbourne & went for a ride.Definitely works well reducing the chucking between truck & trailer aswell as the up & down bounce.Had alittle trouble adding air to the bag but that might of been my air chuck.Packaging was damaged,torn box but the product was ok after inspection.I read a question from another buyer whether to add the req.air before or after the trailer is on the truck.Your tech. advised to add air first before hitching trailer to truck then reduce pressure as req.which helped me with the set-up.
It's the end of the camping season so I will have to wait until next summer to try it somemore,otherwise very satisfied at this point. Greg C.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


What a difference the ride makes. Don't even know 5th wheel is behind us especially going over rough roads. No more chucking after hitting bumps. Well worth the investment. Easy to install. Highly recommend.




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


5 stars on etrailers business model
This
is a bit dirty but that is one year in Florida




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


Was easy to install on our 40' 5th wheel. Have towed over 4000 miles with no problems. Keep the proper amount of air in it and it makes towing a whole lot better


Comments
Still working, no problems after another 3000+ miles. Excellent pin box.
Lenny D - 02/09/2021


by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


I had a Fabex 5th airborne hitch pin on my other 5th wheel and was very pleased. Bought new 5th wheel and put on Reese 5th airborne hitch pin expecting the same performance, but the Reese does not perform as well as the old one. I have tried different air pressure and different air bag positions but cannot not find the smoothness I had with the old one. Also, I have had to touch up paint because of rust causing the paint to chip and come loose in certain areas. Just wish I could give it a better review.


Comments
I am sorry to say that I am not happy with this product. Although it is only one year old the paint has faded and it looks much older. I continue to touch up, have tried waxing it but believe at some point I will have to replace with another brand or re- paint. Guess I just got a bad one.
djmc - 11/19/2017


by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


So far so good. I did have to contact Reese hitch because air bag was leaking down. Reese sent me another air bag and everything seems good. I put in 80psi when we travel and it seems to do a good job. Takes some back in forth out plus bounce. etrailer has always done me right. Thanks etrailer




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


GREAT addition to a 5th wheel! Makes the ride so much better. Honestly, I can’t imagine why RV manufacturers don’t include these automatically. BUT, don’t try to install this by yourself, get some help! I did install it by myself but it nearly killed me!!




by:

Review from a similar Airborne Premium King Pin in Fifth Wheel King Pin


This pin box made a tremendous difference in my fifth wheel trailer. With the original pin box, the trailer controlled the truck and now it is the other way around. Now instead of huge jerks on rough roads, I get cushioned bumps. I can look in the rear view mirror and see the pin box absorbing the bumps.


Comments
After a year, I still love this product. The best improvement I have made on my 5er.
Larry L - 08/29/2018

25
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Show More Reviews

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



  • Is the Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler the Same Length As the Rhino Pin Box
    The Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler part # RP78FR is categorized as a long style pin box. The dimensions are designed to mirror that of the pin box it replaces which one that uses a Lippert 1621 pattern. Therefore, you shouldn't have any issue with clearance using the new pin box. In other words, it's not any longer or at least significantly, than the one it is designed to replace. I have attached a photo below you can use to verify.
    view full answer...
    Image 1 for
  • Height of Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler for Lippert 1621
    The distance from the center of the top mounting holes to the bottom of the skid plate on the Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler part # RP78FR is 9.12".
    view full answer...
    Image 1 for
  • Reese Fifth Air Borne Air Ride Coupler # RP78FR Compatibility With A Grand Design Reflection 320 MKS
    Yes, the Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler - 20,000-lb Capacity # RP78FR is a compatible match to your Grand Design Reflection 320 MKS with a Lippert 1621 bolt pattern. This 5th Airborne premium fifth wheel air-ride extended pin box coupler acts as a buffer between the tow vehicle and the trailer, minimizing the abuse sustained from turbulence on the road and giving you the smoothest ride possible by reducing shock.
    view full answer...
  • Can a 5th Airborne Coupler be Converted to a Sidewinder 5th Airborne Coupler
    Because of the differences in design between the regular 5th Airborne, # RP78FR, and the Sidewinder version, # RP61422, you cannot convert a regular 5th Airborne into a Sidewinder. If the Sidewinder is required, you would need to purchase the entire unit, # RP61422.
    view full answer...
  • What is the Difference Between the Standard and Air-Ride 5th Wheel King Pin
    The stock Lippert 1621 pin box and air-ride pin boxes have some differences. For example, the Lippert 1621 5th wheel pin box # LC1191191 is a direct replacement for a worn out pin box. Whereas the Fifth Gear 5th wheel air ride coupler # RP78FR will have cushioned shocks with an adjustable air spring and shock absorber. Therefore, reducing longitudinal shock or chucking by nearly 60 percent and decreasing vertical shock by 44 percent. I included a video review about the Fifth Gear 5th...
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  • With The Andersen Ultimate 5th Wheel Hitch And Airborne Pin Box Allow For 90 Degree Turns
    The 5th Airborne pin box being referenced in this question is not a Sidewinder/rotating pin box. It's actually just a standard air cushioned pin box like the # RP78FR. The degree of turnability with this setup will depend on the following factors: 1. The distance from the center of fifth wheel hitch jaw to the truck cab. 2. The length of king pin to the nose of the fifth wheel. 3. The width of trailer divided by 2 (to get half). For example: If the distance from the center of the...
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  • Recommended Pin Box To Mitigate Chucking On Rough Michigan Roads
    I can definitely say that the 5th Airborne Premium is an improvement to the ride quality of a Rota-Flex pin box and I know you will be happy with it. We have had many customers confirm this over the years. If you have a short bed on your 2019 GMC Sierra 2500 that means you are using the B&W Companion OEM 5th Wheel Hitch w/ Slider # BWRVK3770 and this sliding Companion is not compatible with the Sidewinder version of the 5th Airborne # RP61422 that you are looking at. Instead you need the...
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  • Recommendation for 2017 Heartland Torque Toy Hauler to Reduce Jarring and Chucking
    For your 2017 Heartland Torque Toy Hauler 5th wheel, I recommend the Lippert Components Bolt-On Shock Mount Kit w/Heavy Duty Oil Shocks - Fits 3" Axle Tube # LC281281 or the # LC281255 if you have the smaller 2-3/8 inch diameter axles. These shock absorbers will help each axle they are mounted on to have less bounce and a more controlled movement. The other options for less jarring and chucking is to use a cushioned pin box. The pin box number should be printed on your trailer's pin...
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  • Recommended Pin Box For Use With Curt A16 5th Wheel Trailer Hitch w/ R16 Slider
    The Reese 5th Airborne Premium Fifth Wheel Air Ride Coupler, # RP78FR is a great replacement/upgrade and will work very well with the Curt A16 5th Wheel Trailer Hitch w/ R16 Slider, # C16521. The air bag is located on top of the pin box instead of the bottom for easier adjustments. The airbag reduces chucking and vertical shock. This is designed for use with Lippert 1621/1621HD, Lippert 0719, Fabex PB 600 Series, Rhino Series and Turning Point Series pin boxes.
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  • Fifth Airborne King Pin Box For 2011 DRV Mobile Suites 38 RSSB3 Lippert 1621
    I spoke with DRV about the manufacturer and model number of the king pin box that came on your 2011 DRV Mobile Suite 38 RSSB3, and they confirmed the pin box on your trailer is a Lippert 1621. We have three 5th Airborne king pins that are a match for your camper. The 5th Airborne Premium Fifth Wheel Air Ride Coupler # RP78FR has a weight capacity of 20,000 pounds. The 5th Airborne # 5AB-E1621-610 has a weight capacity of 21,000 pounds. If you need a sidewinder king pin, you can use the...
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  • Does Reese 5th Airborne Air Ride Pin Box Alter Height of King Pin Compared to OEM 1621 Pin Box
    We have two Reese 5th Airborne Premium Air Ride Couplers to replace the Lippert model 1621 pin box on your trailer. Model # RP78FR is rated for 20K and model # 5AB-E1621-610 is rated for 21K. Both of these cushioned pin boxes are direct bolt-on replacements for your Lippert 1621 and both will keep the same king pin height as your 1621 as long as you use the same mounting holes. They will mount using the same hardware that holds the OEM pin box in place.
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  • Compatible Replacements For A Lippert Rhino Box Pin Box On A 2021 Cedar Creek 37MBH
    The Trailair Rota-Flex 5th Wheel Pin Box # LC328329 you linked to is a fit for the 1621 bolt pattern pin boxes so it will not fit your Lippert Rhino Box, but you have three other options that will. The first option is the MORryde Cushioned 5th Wheel Pin Box for 14K to 18K Trailers w/ Lippert Rhino # MR83QR. This cushioned model will dampen road shock and reduce back-and-forth chucking for a more relaxed towing experience. Unlike air bags, the internal rubber spring requires no maintenance. The...
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  • Air Ride Pin Box Replacement for a Mor/Ryde Pin Box sp872-1621ld on a 2017 Winnebago Voyager
    It looks like the Mor/Ryde pin box on your 2017 Winnebago Voyager has the bolt pattern of the Lippert 1621 pin box. for air ride pin boxes that fit this pattern you could use 5th Airborne pin box # 5AB-E1621-610 or # RP78FR, Flex Air # LC328492, or TrailAir # LC158778. Out of these options the latest and greatest is the Flex Air # LC328492. I have linked videos of these pin boxes for you.
    view full answer...

Do you have a question about this Fifth Wheel King Pin?




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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Kathleen M
Updated by:
Kathleen M
Employee Wilson B
Updated by:
Wilson B
Employee Mike S
Written by:
Mike S

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