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  1. Fifth Wheel King Pin
  2. Lippert
  3. Lippert 1716
  4. 21000 lbs GTW
  5. Absorbs Road Shock and Reduces Chucking
  6. Upgraded Pin Box
Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 - 21,000 lbs

Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 - 21,000 lbs

Item # LC158777
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Retail:$1,742.48
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Fifth Wheel King Pin
This item qualifies for Free Truck Freight Shipping
Shipping Weight: 195 lbs
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Lippert Fifth Wheel King Pin - LC158777
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Enjoy smooth, stable towing with your fifth-wheel trailer by replacing your ordinary pin box with this air-ride-equipped model. An internal air bag and built-in strut absorb road shock so that you won't feel it. Replaces Lippert 1716 pin boxes. Call 800-298-1624 to order Lippert fifth wheel king pin part number LC158777 or order online at etrailer.com. Free expert support on all Lippert products. Guaranteed Lowest Price and Fastest Shipping for Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 - 21,000 lbs. Fifth Wheel King Pin reviews from real customers.
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  • Reviews (98)
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Lippert Fifth Wheel King Pin - LC158777

  • Lippert 1716
  • 21000 lbs GTW
  • Absorbs Road Shock and Reduces Chucking
  • Upgraded Pin Box
  • Lippert
  • Fixed Turret

Enjoy smooth, stable towing with your fifth-wheel trailer by replacing your ordinary pin box with this air-ride-equipped model. An internal air bag and built-in strut absorb road shock so that you won't feel it. Replaces Lippert 1716 pin boxes.


Features:

  • Air ride pin box replaces standard pin box on your 5th-wheel trailer to cushion your ride, improve handling, and limit strain on truck and trailer
    • Minimizes chucking
    • Eliminates bounce and jarring
  • Internal air bag absorbs road shock
    • Scissor-like motion allows pin box to compress, compensating for jarring and bounce
    • Built-in shock ensures that pin box rebounds - keeps air bag from breaking down
  • Black powder coat provides rust resistance
  • Sturdy steel construction
  • King pin connects to any 5th-wheel trailer hitch
  • Bolt-on installation with no assembly required
  • Made in the USA


Specs:

  • Designed to replace Lippert 1716 5th-wheel pin box
  • Weight capacity: 21,000 lbs
  • 1-Year limited warranty


Notes:

  • Because of the size of this item, it ships via truck freight and only to the contiguous United States.
  • Do not use the Trailair air ride pin box with any type of gooseneck adapter.

Getting there is half the fun, right? Not if you're being bumped, jerked, jammed, and pushed around from the chucking and road shock that occurs as you tow your fifth-wheel trailer or RV. And imagine the costly wear and tear on your trailer as it endures that rocky ride.


Put the fun back into your trip and ease the stress on your trailer by replacing your factory pin box with the Trailair air ride pin box. The internal air bag and built-in shock work together to cushion your ride, improve handling, and limit strain on both your truck and your trailer.


Air Bag Absorbs Road Shock

Lippert Trailair air ride pin box air bag and shock

Standard pin boxes without any type of shock absorption transfer road shock to your trailer, resulting in potential damage to the trailer and an overall bumpy ride. But the Trailair air ride pin box absorbs shock and cushions your ride as you pull your fifth-wheel trailer. When you encounter uneven terrain on your trip or hit a pothole on the highway, the Trailair pin box compresses vertically, similar to how a pair of scissor blades closes in on each other. This compression transfers the road shock and vibrations to the internal air bag, saving your fifth-wheel hitch, trailer, or tow vehicle frame from enduring a rocky ride.


A built-in strut, or shock, controls the Trailair's compression so that the internal air bag doesn't burst. The strut also causes the pin box to appropriately rebound without any bounce, and positions it to be ready for the next bump in the road.


Simple Setup and Installation

First, simply remove your existing Lippert 1716 pin box from your trailer. The Trailair uses the same bolts that held on your original pin box so no additional hardware is required for installation. Plus, the Trailair pin box comes out of the box ready to be put on your trailer, so no assembly is needed. Because the Trailair is quite heavy, you should put it on an elevated surface or have a friend help you support its weight during installation.


Lippert Trailair air ride pin box air intake valve and inflation indicator

The internal air bag should be inflated after the pin box has been mounted on your trailer. Using the air intake valve, inflate the air bag until the outer cylinder of the shock rises high enough to fully expose the yellow inflation indicator sticker.



158777 Lippert Components (LCI) Air Ride by Trail Air Fifth Wheel Kingpin Box for L07 Lippert 1716

Replaces 155933 Lippert Components (LCI) Air Ride by Trail Air Fifth Wheel Kingpin Box for L07 Lippert 1716

Replaces UF35-946205 Ultra-Fab Air Ride Trail Air Kingpin Box






Customer Reviews

Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 - 21,000 lbs - LC158777

Average Customer Rating:  4.8 out of 5 stars   (98 Customer Reviews)

Enjoy smooth, stable towing with your fifth-wheel trailer by replacing your ordinary pin box with this air-ride-equipped model. An internal air bag and built-in strut absorb road shock so that you won't feel it. Replaces Lippert 1716 pin boxes.

- LC158777
by:

Made a huge difference in the way to 5er tows now. Less bouncing and chucking, the coffee maker on the counter stays in place and things inside don’t move around anymore. It cut down on the stress to the 5er more than I expected, I can feel the difference in the driver seat also so it has been a very nice upgrade.



- LC158777
by:

Great phone assist prior to ordering as always and product was just as described. Shipping was a little hard to track as UPS advised the unit was sitting in our town but unable to locate for 5 days. E-Trailer is always awesome to work with. Thanks to all your staff.



- LC158777
by:

Hitch makes for a lot smoother ride than the factory one, I all so put air bags on the truck. Rides very nice. On installing the new hitch, there was a clearance problem. It was less than an quarter inch interference on the lower front part of the frame that the kingpin box bolts to that needed to be ground down for the pinbox to fit. The next thing was the bag had a hole in it, so it needed to be aired up every day. Got new one sent to me under warranty, witch was great. But the video that showed how to replace it was for the wrong hitch. I figured it out myself. Working good now.



- LC158777
by:

etrailer is and excellent site to order parts for your trailer. They walked me thru the part numbers so the pin box I ordered fit. No problems with the install and I can't wait to take my first trip with the new pin box.


Comments
Awesome. I live on treacherous roads and this takes the bounse out of my trailers and helps keep the trailer from coming apart. I highly recommend this product.
David - 03/05/2020



- LC158777
by:

The trail air makes trailer ride so much better,very little chucking and a smoother ride it is very heavy but with a little help it was installed in no time. Thank you to etrailer for the fast shipping and great price. Kyle



- LC158777
by:

The hitch is on a 2011 28' Coleman 5th, pulled by a '98 Dodge Ram 3500 dually. The ride is greatly improved. No more chucking and bouncing. I would have given 5 stars but the airbag won't hold air overnight.



- LC158777
by:

There was a mix up with the order but once it got straighten out,they reshipped another one.I told them that I needed it by Friday,I don't know how but it made.it I would use this company again in the future. Thanks



- LC158777
by:

Works great I can watch my golf cart trailer behind my fifth wheel



- LC158777
by:

We needed a longer pin box and one that would give a better ride. Spoke with representative from etrailer who was very helpful. It has made a huge difference in ride and maneuverability.



- LC158777
by:

Best ever. So glad I ordered this..easy to install and was just what I needed for our new 5th wheel toy hauler.



- LC158777
by:

love it worked so good, love Etrailer also great company



- LC158777
by:

The product was great. The service was great. The freight company left a lot to be desired.



- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


Added this pin box to improve ride and give my rv a smoother pull. The owners manual says you can use the orginal nuts and bolts, but felt getting new ones that are grade 8 was the best route for me. The pin box had several deep scratches due to shipping so I mounted it and then painted over the scratches and resolved the problem. The rebound shock didn't have the yellow arrow like the one in the pictures, does have an max inflation stamped in the shock but black on black doesn't help for proper inflation so I painted the arrow yellow, not great but it works. Number one issue is no matter the inflation of the airbag I can't get it too the top of the arrow as required. I checked the PSI on the airbag and was at 135 PSI. I felt that was too high of air pressure and there's nothing in the manual or online to say how much air should be in an airbag so I went with 98 PSI to be safe. As for the ride I feel it was an improvement over the previous pin box but to be honest my F450 has airbags as well, so was the improvement due to the pin box or because of the truck airbags. I'll go with both had factors with the ride. But the number 1 factor for me was the 21000 weight capacity. 4 out of 5 is the issue with inflation and what's correct.


Comments
Its been a year since last review, still havent had any issues with the pin box. Works well and provides a smooth ride under most conditions. If you run into rough patches on the road youll feel it and in my opinion there isnt anything made today that will eliminate that type of chucking. I also have airbags on my truck and it still happens. Now for the pin box 1. It works as advertised and improves the ride substantially. 2. The pin box is very well built and no issues period. 3. One issue is the air valve on top of the pin box which makes you get up into the truck bed to fill it with air. What would be a improvement would have a extension that attaches to the valve that would allow you to add air without having to get into the truck bed. To summarize, this pin box has been a great investment and if youre looking a replacement box, youll be happy you purchased this one.
David M - 03/04/2022


- LC155943
by:

Review from a similar Trailair in Fifth Wheel King Pin


Good looking product. Mounted it on a Montana 40ft 5th wheel. It arrived 2 weeks ahead of schedule. It was easy to install. I did have to grind the corners of the trailer frame bracket as the jaw hinge wouldn’t allow the bolt holes to line up. Once the corners were ground, everything lined up perfectly. It only took my son and I to pick up the pin box and once the first bolt was in, it was simple and easy to do the rest. There are 3 things to complain about. 1. The position of the air valve sucks. Really hard to get at. 2. The mark on the shock for proper inflation is not marked well. Had to get on hands and knees with a flashlight to actually see it. It was suppose to be bright yellow, it’s black, same as the shock. My 3rd complaint would be the fact that I had to drill 3 holes into the pin box to reattach the brake safety cable and the electrical wire box. The biggest positive thing is, is how much of a difference it has made in the ride quality for not only with the trailer but the truck as well. Soooo much smoother than the original pin box. Would I buy another one? You better believe I would. Wondering why I didn’t buy it sooner. Won’t have another 5th wheel without it.



- LC155943
by:

Review from a similar Trailair in Fifth Wheel King Pin


I purchased this Lippert Air Ride hitch for my 40 foot Genesis Supreme trailer and wish I had bought it 2 years ago and installed it. What a difference is has made both in the trailer when towing as well as the difference in my truck while pulling it down the road. eTrailer had the best price and fast shipping. They as well helped me with verifying the right part number that works with my trailer. I purchase many parts and accessories from eTrailer and will continue to purchase from them in the future.


Comments
My hitch is working great! It has made a big difference in how well the trailer rides on my truck. No more harsh bumps when I drive over rough roads or poor bridge approaches. Awesome product!
Joe S - 06/23/2021


- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


Took all the transfer of trailer hunting out of tow vehicle as you travel. Also give me more turning clearance on short bed F250.


Comments
Makes hook up a snap!
Dale H - 10/05/2021


- LC155943
by:

Review from a similar Trailair in Fifth Wheel King Pin


Have not did a road test yet but it’s installed. Way heavier than factory. I have talked to many that have this and like it. Helps reduce chucking back and forth movement. Nothing will be solve all if you are on a rough road you will feel it. No hitch will eliminate. Was fairly easy to install you will need help to lift. I used the tailgate on the truck and backed under and used blocking to get in place. I installed pretty much myself. My wife help some with aligning the bolts.



- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


Looks like a very good product, Easy installation only took an hour. Took it on a short test run On a very rough road It seemed to work well but we'll know more on the next upcoming trip. Packaging was inadequate could have used more Tie down straps , but no damage.etrailer is great to work with!!!



- LC155943
by:

Review from a similar Trailair in Fifth Wheel King Pin


Looks very good but I won't be installing the pin box until April we still have over 3 ft. of snow on the ground, Hope I can get the 5th wheel hooked up by April 9 ....



- LC179879
by:

Review from a similar Trailair in Fifth Wheel King Pin


I'm pleased with the pin box. Put it on my 5th. wheel. The airbag gives us a better ride than any other pin box. Its a great product.



- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


The king pin has eliminated about 80% of the chucking. I pull 16k fiver. I am very happy with it. Related I always use etrailer for my parts purchase. One time I was stranded near Disneyland. I needed shackle. They had me triple check for correct part and rushed delivery. These guys are the real deal.



- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


We ordered our Trailair Pin Box and it shipped and arrived earlier than expected. Great customer service and Excellent help with setup after installation.



- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


The package arrived with installation parts missing. It was very disappointing. etrailer was notified and sent another package, hopefully this time with all parts needed for installation.



- LC155943
by:

Review from a similar Trailair in Fifth Wheel King Pin


Can’t believe it can be so easy to back up with this hitch. Never go back to a standard hitch. I m sold forever but the capture plate for each hitch needs to be added to the hitch or at least give the part # for that specific item.



- LC158778
by:

Review from a similar Trailair in Fifth Wheel King Pin


This is the 2nd air ride hitch i've purchased. First one was on another 5th wheel and stupidly didn't keep it when I traded for the one I have now. They work great! It takes the shock out of the bumpy roads and keeps camper insides from re-arranging when traveling. Very happy with the hitch.


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Ask the Experts about this Lippert Fifth Wheel King Pin



  • Trailair Air Ride Pin Box Replacement For Lippert 1716 Pin Box On Open Range 337 5th Wheel Trailer
    For your 1716 Lippert Pin box, there is a Trailair Air Ride Pin box compatible. It is the Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 - 21,000 lbs # LC158777. This will allow you to swap your factory 1716 with one that not only has a cool look but has great function to absorb shock and minimize chucking. This pin box uses a scissor-like motion to compress the air bag and then uses the shock to return the pin box to correct height for the air bag to work properly the next time...
    view full answer...
  • Can Demco Hijacker AutoSlide Fifth Wheel Hitch be Used with Trailair Pin Box
    Yes, a Demco Hijacker can be used with the Trailair cushioned pin boxes like the # LC158777. The Hijackers work great with the Trailair pin boxes as long as it's not a FlexAir that has the pivoting king pin plate. Nothing else would be needed.
    view full answer...
  • Replacing a 5th Wheel King Pin with One Rated Much Higher
    Trailair Air Ride # LC158777 is the correct replacement pin box for your Lippert 1716. The higher rating of 21,000 pounds won't cause any problems for you.
    view full answer...
  • Fifth Airborne or Trailair King Pin Replacement Recommendation for Lippert 1716
    Between the 5th Airborne and the Trailair I would go with the Trailair # LC158777. I did quite a bit of digging through message boards and found a few people who did back to back tests between both and they stated that the ride quality was smoother with the Trailair.
    view full answer...
  • Which Trailair Tri-Glide Pin Box to Replace Existing Lippert 1716
    The Trailair Tri-Glide replacement fifth wheel pin box you mentioned, part # LC158777 is indeed a direct replacement for your existing Lippert 1716 pin box. The Tri-Glide is actually manufactured by Lippert, so you'll have no worries whatsoever about it not being compatible. Even though the # LC158777 has a higher capacity than needed, it would still work perfectly for you.
    view full answer...
  • Recommendations For Improving Rough Ride And Chucking When Towing 5th Wheeler
    Yes. The Trailair Air Ride 5th Wheel Pin Box, Item # LC158777, will work. It replaces your regular pin box with a pin box than has an internal air bag and built-in strut that is designed to minimize chuck, eliminates bounce and jarring, and creates an overall better ride. It has a weight capacity of 21,000-lbs. I have attached some articles that give more details that could help.
    view full answer...
  • PullRite ISR SuperLite Four Point Rail Mounted Hitch Compatibility With Trailair Air Ride Pin Box
    I reached out to my contact at Lippert and confirmed the Trailair Air Ride 5th Wheel Pin Box # LC158777 you mentioned should work just fine with the king pin adapter needed for your ISR Series SuperLite 4 Point PullRite hitch. If you have a different hitch, let me know and I can see if there are compatibility issues.
    view full answer...
  • Bolt Pattern and Dimensions of Trailair LC158777 Air Ride Replacement Pin Box
    The Trailair Air ride replacement pin box you mentioned, part # LC158777 is a replacement for the Lippert OEM 1716 pin box. Width-12-1/2 inches Center Pin to center front bolt 20-3/8 inches Center Pin to center rear bolt 29-1/2 inches The rest of the dimensions are included in the diagram I made for you. Pay special attention to the listed bolt spacing, these replacement pin boxes aren't universal, the bolt patterns will need to match. I've linked you to our replacement pin box help article.
    view full answer...
    Image 1 for
  • Can 5th Wheel Trailer Still be Towed if Air Bag on Trailair Air Ride 5th Wheel Pin Box Goes Bad
    I spoke with my contact at Lippert who said that if the air bag on a Trailair Air Ride 5th Wheel Pin Box # LC158777 were to fail then you could still tow the trailer but just for a short distance and it would be to get it repaired. Since the air bag does help to cushion the ride it will affect your towing performance and you would want to tow in a very careful manner (slow and on good roads). So you definitely do not want to tow like you normally would with a bad air bag.
    view full answer...
  • Length of Trailair Air Ride 5th Wheel Pin Box # LC158777
    The Trailair Air Ride 5th Wheel Pin Box # LC158777 referenced in your question features an overall length of 41-3/4 inches. From the back of the unit to the center of the king pin there is a distance of 28-5/8 inches. I have attached a couple of images with these dimensions labeled that you can also check out.
    view full answer...
    Image 1 for Image 2 for
  • Distance From Closest Mounting Hole to King Pin on Trailair Air Ride # LC158777
    The distance from the center of the king pin to the center of the closest mounting hole on the Trailair Air Ride 5th Wheel Pin Box # LC158777 is right around 18-7/8 inches. I have attached an image to assist.
    view full answer...
    Image 1 for
  • Comparing Lippert Trailair Cushioned 5th Wheel Pin Boxes LC155933 and LC158777
    The two Lippert Trailair 5th wheel pin boxes LC155933 and # LC158777 are actually one and the same part. The old part number LC155933 has been replaced by the new item reference # LC158777. This air cushioned pin box is a direct bolt-on replacement for the Lippert 1716 5th-wheel pin box and it is rated for 21,000-lbs. The Trailair will reduce chucking, bounce and jarring thanks to its internal air spring and shock system which absorbs these forces to give you a smoother and more stable ride.
    view full answer...
  • Trailair Cushioned Pin Box to Replace Lippert 1716
    There is not a Flex Air pin box that is designed to replace a Lippert 1716, but there is a model that is extremely similar, the Trailair Air Ride 5th Wheel Pin Box - Lippert 1716 # LC158777. This is a cushioned pin box that has a large air spring which and a shock, as shown in the accompanying photo, which combine to optimize your comfort as you tow your fifth wheel trailer. This is a fantastic upgrade that is going to make your journey much more comfortable than with a standard pin box.
    view full answer...
    Image 1 for
  • Air Ride Pin Box Replacement for 5th Wheel Trailer with a Lippert 1716 Pin Box
    Like you said there isn't a Flex Air pin box that will fit in place of a Lippert 1716 pin box. The mounting holes on the 1716 are different than the 1621 so # LC328492 will not work. But you can use the tried and true Trailair pin box, # LC158777, rated for 21,000 pounds.
    view full answer...
  • 5th Wheel Pin Box Identification for Selection of Replacement Cushioned Pin Box
    I was not able to cross-reference the pin box part number 3306133 so you will want to re-check the safety sticker on your OEM pin box to find the Lippert part number, which is usually a 4-digit number such as 1621 or 1116. I linked both a helpful article concerning air cushioned pin boxes and our page for all cushioned replacements for Lippert OEM pin boxes. For example, if you have a pin box model 1716 then you could use Air Ride pin box # LC158777. Once you confirm your pin box number...
    view full answer...
  • How to Pick Out Cushioned Pin Box for Open Range Light Camper
    First we have to determine what pin box you have on your Open Range Light camper so that we can pick out a cushioned pin box. I am fairly certain you have either a Lippert 1621 or a 1716 but I wasn't able to narrow it down beyond that. What you need to do is check out the pin box looking for a sticker or plate that has either of those numbers listed. If you have a 1621 you would want the # LC328492 or if you have the 1716 you would want the part # LC158777. Both of these are cushioned...
    view full answer...
  • Difference Between Trailair Air Ride Pin Boxes That Replace Lippert 1716
    The only difference between the two Trailair Air Ride Pin Boxes you asked about are the part numbers. The Trailair Air Ride 5th Wheel Pin Box # LC158777 is simply the updated part number from 155933. Both of these Air Ride Pin boxes are designed to replace Lippert 1716 pin boxes, have a 21,000 lb capacity and will provide you with a much smoother 5th wheel towing experience due to the cushioning the air bag provides.
    view full answer...
  • Is Trailair Air Ride Pin Box Compatible with PullRite SuperGlide 5th Wheel Hitch
    According to PullRite the Trailair Air Ride 5th Wheel Pin Box # LC158777 (for a 1716 Lippert pin box) or # LC369535 (for a 1621 Lippert pin box) will need the PullRite quick connect capture plate 331761 for it to be compatible with your sliding 5th wheel hitch. I'm not sure what the 1721 pin box number is as it isn't a normal pin box number which is why I mentioned the 2 different boxes above. If you actually do have a 1721 let me know and send me a picture of your sticker so I can reach...
    view full answer...
  • Recommendation to Replace Lippert 1716 Pin Box for Smoother Ride
    I reached out to my contact at Lippert and he was able to cross-reference the numbers you found listed on your pin box to a 1716 model. I do have a great option for you, however the Trailair Flex Air 5th Wheel Pin Box # LC328492 that you referenced will not be compatible with the 1716 model pin box on your trailer. There isn't a Flex Air available that's designed for your trailer but we do have the very similar Trailair Air Ride # LC158777 that will work perfectly. This unit features...
    view full answer...
  • Cushioned Pin Box for either Lippert 1716 or 1116 Pin Box
    For the Lippert 1716 pin box you might have the only cushioned Lippert pin box we offer is the Trailair part # LC158777. We don't have a FlexAir at this time but this cushioned pin box will give you a much smoother ride quality that what you have currently. If you instead had a 1116 then you'd need the part # LC155943 instead. The big difference between the 1116 and the 1716 is the overall length. The 1716 is a "long" pin box and measures 20-3/8 inches from the front row of bolts to the...
    view full answer...
    Image 1 for
  • Will Lippert Trail Air LC158777 Pin Box Provide More Clearance than Existing Trail Air Rota-Flex
    According to Lippert, the Rota-Flex was never available as a replacement for the 1716 pin box, are you sure you don't have one that's a replacement for a 1116? The Lippert 1716 and 1116 share the same bolt pattern, but the 1716 is 6-1/2 inches longer and would provide more clearance. If you'll look at the diagram I provided, you can see the bolt spacing that the 1716 uses. You can compare that to your existing Rota-Flex, and if they're identical you could certainly use the # LC158777 and...
    view full answer...
    Image 1 for
  • Air Ride Pin Box for Lippert 1716 Wich RPO Number 0001619538
    I sent Lippert the sticker on your pin box and they told me you have a 1716 Lippert pin box which means for a cushioned pin box we have the Trailair part # LC158777 which would work well.
    view full answer...
    Image 1 for
  • Replacement Trailair Pin Box for MOR/ryde RPB72-1716 Pin Box on Trailer
    Based on my research, your MOR/ryde RPB72-1716 pin box would have replaced the factory Lippert 1716 pin box on your trailer. The Trailair Flex Air 5th Wheel Pin Box # LC328492 that you referenced is designed to replace the Lippert 1621 pin box, so it will not work on your Arctic Fox trailer. The closest pin box upgrade we have available to the Trailair Flex Air that will work on your trailer is the Trailair Air Ride # LC158777, which is designed to replace the Lippert 1716 pin box. This...
    view full answer...
  • How Wide Is the Trailair Air Ride 5th Wheel Pin Box Part LC158778 For Lippert 1621
    The Trailair Air Ride 5th Wheel Pin Box part # LC158778 is 12" wide at the outside of each wing. I have attached a video for you that shows this measurement at around the 3:10 mark. This pin box is designed to be an exact replacement for the Lippert 1621 and Lippert 1621HD.
    view full answer...


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Info for this part was:

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