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Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs

Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs

Item # LC328330

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Fifth Wheel King Pin

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Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs Fixed Turret LC328330
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  • 1621
  • Lippert
  • Reduces Bounce and Jarring
  • 18000 lbs GTW
  • Pin Box Upgrade
  • Lippert Components
  • Fixed Turret
  • Cushioned
This Rota-Flex pin box has a pivoting head with a built-in rubber compound that works to reduce chucking and absorb road shock, resulting in a smoother ride and less wear and tear on your trailer. Replaces Lippert 1621 pin boxes. Call 800-298-8924 to order Lippert Components fifth wheel king pin part number LC328330 or order online at etrailer.com. Free expert support on all Lippert Components products. Guaranteed Lowest Price and Fastest Shipping for Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs. Fifth Wheel King Pin reviews from real customers.


  • All Info
  • Reviews (21)
  • Q & A (66)
  • Videos (1)
  • Photos
  • Why etrailer?

Lippert Components Fifth Wheel King Pin - LC328330

This Rota-Flex pin box has a pivoting head with a built-in rubber compound that works to reduce chucking and absorb road shock, resulting in a smoother ride and less wear and tear on your trailer. Replaces Lippert 1621 pin boxes.


Features:

  • Pivoting pin box replaces standard pin box on your 5th-wheel trailer to improve handling and limit strain on the truck and trailer
    • Minimizes chucking by allowing controlled movement of king pin within your hitch
  • Rubber compound built into the head absorbs road shock
    • Reduces wear and tear on trailer
  • 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 1621 5th-wheel pin box
  • Weight capacity: 18,000 lbs
  • 1-Year limited warranty


Diagram of measurements for the Lippert Rota-Flex pin box

Note: Do not use the Trailair Rota-Flex pin box with any type of gooseneck adapter.


The Rota-Flex pin box has a pivoting head and built-in rubber compound that help to reduce checking and absorb road shock for a smoother ride as you tow your fifth-wheel trailer.


Pivoting Head Reduces Chucking

The Lippert Rota-Flex pin box has a pivoting head to help reduce chucking

The pivoting head on the Rota-Flex allows for controlled back and forth movement of the king pin to reduce the uncomfortable jarring known as chucking. Unlike a rigid pin box that has little give at the point where the trailer and the hitch are connected, the Rota-Flex can pivot slightly to compensate for those times that your trailer suddenly pushes or pulls on your tow vehicle. Because the pin box head - not the king pin itself - is moving, the chucking that often occurs when the king pin jerks around inside the hitch is significantly reduced.


Rubber Compound Absorbs Road Shock

The Lippert Rota-Flex pin box has a built-in rubber compound to help absorb road shock

A heavy-duty rubber compound is built into the head assembly of the Rota-Flex pin box. This rubber absorbs the bumps and vibrations, or road shock, experienced when towing a fifth-wheel trailer over rough roads. 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. The shock-absorbing rubber inside the Rota-Flex takes the beating so there's less wear and tear on your trailer or RV and you get a smoother ride.


Easy, Bolt-On Installation

The Rota-Flex is easy to install. Simply remove your existing Lippert 1621 pin box and install the Rota-Flex on your trailer or RV. The Rota-Flex uses the same bolts that held on your original pin box so no additional hardware is required. Plus, it comes out of the box ready to be put on your trailer, so no assembly is needed. Because the Rota-Flex is quite heavy, you should put it on an elevated surface or have a friend help you support its weight during installation.



328330 Lippert Components (LCI) Rotaflex by Trail Air Fifth Wheel Kingpin Box for Lippert 1621

Replaces UF35-946202 Ultra-Fab Rubber Ride Kingpin Box by Rota-Flex





This Product Fits The Following Vehicles

2019 - 2019 Forest River Sabre Fifth Wheel 36BHQ

2016 - 2016 Jayco Pinnacle Fifth Wheel 36KPTS Luxury




Video of Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs


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




Video Transcript for Lippert Components Fifth Wheel King Pin - Pin Box Upgrade - LC328330 Review

Today we're going to review part number LC328330. This is the Lippert Trailair Rota-Flex 5th Wheel Pin Box for the Lippert 1621 Pin Boxes and it has a 18,000 pound weight capacity. Now this is a pivoting pin box which will replace your standard pin box on your 5th wheel trailer. This will improve the handling and limits strain on the truck and the trailer. Basically because it pivots, as you can see right here, this plate down here will pivot up and down. This will minimize chucking by allowing controlled movement of the king pin within your hitch. There's also a rubber plate right in here, above this plate.

This rubber compound built into the head will absorb road shock and it helps reduce wear and tear on your trailer. The whole pin box has a black powder coat finish. It helps to provide rust resistance. It's made of a sturdy steel construction. The king pin, right down here, will connect to any 5th wheel trailer hitch. Now this is a bolt on installation with no assembly required.

It is made in the USA. Again, specs on this, it's designed to replace the Lippert 1621 5th Wheel Pin Box. The weight capacity on this pin box is 18,000. It comes with a 1 year limited warranty. Now I do want to give you some pin box measurements. It's what you wanted.

To make sure this will fit your pin box by using these measurements to match up with these. What we're going to is we're going to first do the distance between - There's 2 rows of bolts. Center to center, we're going to measure that distance, the horizontal distance between the bolt hole. As you can see, that's right at 7-3/4 inches. Now the distance, center to center, from the holes up and down vertical is 2 inches.

A bolt hole is 5/8 inch diameter. Now the other measurement, they measure from the center of the king pin to the front row of bolts and then the center of the king pin to the rear row of bolts. What I've done here to make it easier to show you, I've put a mark on here where the center of the king pin is. What we're going to do is measure from that center. Let's see if I get a good measurement on this. You could see 17-3/4 to the front row and to the rear row is 25-5/8 and then the last measurement, the width on this. Let's see if can turn this to get the width for you. That's also critical when you're taking measurements. We'll rotate this. There we go. The width on this is going to be 12 inches. Then one last note I want to mention, the Trailair Rota-Flex Pin Box cannot be used with any type of gooseneck adapter. That should do it for the review on part number LC328330. This the Lippert Trailair Rota-Flex 5th Wheel Pin Box for the Lippert 1621 Pin Boxes with an 18,000 pound weight capacity. .


Customer Reviews

Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs - LC328330

Average Customer Rating:  4.8 out of 5 stars   (21 Customer Reviews)

This Rota-Flex pin box has a pivoting head with a built-in rubber compound that works to reduce chucking and absorb road shock, resulting in a smoother ride and less wear and tear on your trailer. Replaces Lippert 1621 pin boxes.

- LC328330
by:

I received my order promptly, faster than expected for a large item. I paid for my pin box, checked the next day and etrailer had dropped the price, they refunded the difference which impressed me greatly. I am a repeat customer and have not had a bad experience ever. 500967



- LC328330
by:

Fast Shipping,Great product,It sure softens up the ride! Doesn't eliminate all the jerking but overall quite satisfied! Quality built product. Definitely not a one person job so seek out a helper to hold things Thanks Etrailer. 86296


Comments

This king pin box came on my 5th wheel, it does not help the jerking at all. I am now looking to install a different pin box.

-- comment by: Gene - 10/19/2013

2207

Thanks for the feedback. If you need help finding a different pin box, please let me know. We carry Ultra-Fab, Fifth Gear and Reese pin boxes in various versions.

-- Patrick B - 10/23/2013


- LC328330
by:

The product was great, The better part was how fast it got to me . I had it put on the camper the same day i had received it what was 3 days after my order. Now you can't beat the shipping. All my orders from ETrailer has been fast and on time . Thank you all at Etrailer. 272725



- LC328330
by:

Good Product will recommend to others 660090



- LC328330
by:

Received on Wed. as planned. With a little help from my forklift, I had this trail air pin box installed in few hours. Fit perfect on my Sabre. Drove around the block, about 4 miles. This pulls so nice, it is like nothing behind you. Thanks etrailer. 636450



- LC328330
by:

Had trouble receiving the hitch through UPS (they lost it --[48 miles from my residence] conversation with Stacy at etrailer and they shipped another, which my wife and I installed. etrailer was very helpful in sending another to replace the one UPS lost. Thanks so much 564168



- LC328330
by:

Nice product. Would have been nice if ups didn’t loose the first one but you guys got me another one quickly 557530



- LC328330
by:

Shipment was on time as promised. The packing in the box was not well done and it had some scratches. Will be trying it out in a few weeks to see how it works. 496382



- LC328330
by:

This king pin assembly works well to get the chucking down. I do feel at times do to road conditions that I still feel some, but over all it has helped the ride and I feel it has take some abuse away from my truck and the trailer seems to ride better. Overall I am pleased with the kingpin assembly for the cost. The only thing I cannot do is put my cover on that was on my old kingpin. 432321



- LC328330
by:

The Roto Pin Box has eliminated 90% of my chucking. The only time I get any now is on a extreme bump but it settles down pretty quick. It was also very easy to install. Some of the bolts are a little tight to get to but doable. 421068



- LC328330
by:

I purchased it as a direct replacement for the damaged on on my fifth wheel. 355887



- LC328330
by:

I haven't opened the box yet, but it was shipped as fast or faster than I ever thought possible. As far as the product goes i am sure it arrived safe and sound. Good job! 289397



- LC328330
by:

Looks great on my 5th. If anyone else has wondered as I did and could not find anything online regarding the vertical height difference between this trail air rota flex and my standard lippert 1621. This pin box will reduce the nose of my 5th by 2" mounted in the same location. Now to pull my rear axle spacers on my dodge to get another 1.5" lower. Etrailer is great as always. Never had a problem with them and have ordered here many times. Thanks Etrailer! 250771



- LC328330
by:

arrived ahead of time in great shape. Have not put on yet. 247054



- LC176440
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


Definitely dampened the chucking and my wife is much happier with the ride. Also it seems to be much quieter. Noticed at the camper show many units come with the Roto flex from the factory. 603833



- LC328329
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


I received the pin box in good condition. Preparing to install. Much anticipation to get rid of present air ride hitch which is woefully inadequate. 576710



- LC328329
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


Switched from a ball. Glad I did. Very well pleased. 565223



- LC176440
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


Got it on and ready to try. It fit nicely. Did it myself in about an hour . Nothing left of the box it was in but other than a couple of scratches the pin box itself was in good condition 525560



- LC176440
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


The hitch arrived poorly packaged in a cardboard box. The hitch is very heavy. It was scratched and required repainting. The hitch itself looks well made and strong. 435592



- LC176440
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


Works great eliminated the jaring. Also shorter so I can make a hard turn without touching the sides of my box 416803



- LC328329
by:

Review from a similar Lippert Components Trailair Rota-Flex in Fifth Wheel King Pin


Drove well 234094


23
23

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


  • Recommended Lifting Bracket And Crane For Removing 5th Wheel Hitch
  • I reached out to PullRite and they said you can definitley use the trailer to remove the hitch from your truck, but you don't want to leave it hanging there. They suggest lowering onto saw horses or another sturdy surface. That is a lot of weight to leave on your pin box and king pin as well as the jaws of your hitch. I know that there are people that will use the MaxxTow Hydraulic Pickup Truck Crane for 2" Hitches - 1,000 lbs # MT70238 along with the Demco 5th Wheel Lifting Bracket...
    view full answer...

  • Lippert Solid Step Manual RV Steps for 24-Inch Wide Doorway
  • Based on your doorway width and your ground-to-threshold dimension you can use the Lippert Solid Step Manual Fold-Down Step # LC678040. This works for doorways that are 24- to 26-inches wide and that have a height of 27- to 36-inches. Weight capacity is 400-lbs. You will need to supply your own mounting hardware or re-use the original hardware.
    view full answer...

  • Recommended Capture Plates for Trailair Rota-Flex Pin Box with Demco Hijacker Autoslide
  • It looks like you might have a Trailair Roto-Flex 5th Wheel Pin Box like # LC328330. I do recommend confirming this by locating the model name of your existing pin box. If this is the case, then to use the Demco Hijacker Autoslide 5th Wheel Trailer Hitch # DM8550034 referenced in your question, you will just need to add the Demco Hijacker Capture Plates # DM6171. These capture plates are designed specifically for the Trailair Rota-Flex pin boxes and will prevent the king pin from pivoting...
    view full answer...

  • Can Demco Hijacker Fifth Wheel Hitch be Used with Lippert Trailair Pin Box
  • Yes, a Demco Hijacker like part # DM8550034 can be used with the Trailair cushioned pin boxes like the part # LC328330. As long as it's not a FlexAir pin box you would be fine.
    view full answer...

  • Recommended Replacement Pin Box for Lippert 182209 1621 on 2010 KZ Durango LX
  • I reached out to my contact at Lippert and you do have the 1621 pin box on your 2010 KZ Durango LX. If you are looking for a cushioned pin box, I recommend the Trailair Flex Air 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs # LC328492 or the 21,000 lb # LC369535. Either of these will work well and they not only have the air ride but also have a rubber compound and moving head to be the fist defense against road shock and chucking. If you desire greater turning clearance, then the 5th...
    view full answer...

  • Length of King Pin on Lippert 1621 Pin Box
  • I believe you are simply asking the length of the king pin on the Trailair Rota-Flex 5th Wheel Pin Box # LC328330. I reached out to the manufacturer who said that the king pin on this pin box measured 3.29 inches. I have added a photo showing other dimensions of this pin box for you to take a look at as well; this pin box is a direct replacement for Lippert 1621 pin boxes and is designed to make your towing experience more comfortable with the rubber compound in the pin box head that...
    view full answer...

  • Can Demco Hijacker Autoslide Fifth Wheel Hitch be Used with Rotaflex Cushioned Pin Box
  • You can use the Demco Hijacker Autoslide fifth wheel hitches like part # DM8550034 with the Rota Flex pin boxes but you have to use the required adapter part # DM6171 which allows the head of the hitch to attach to the pivoting plate of the Rota-Flex for Lippert 1621 Pin Boxes part # LC328330.
    view full answer...

  • Measuring to Determine Which Pin Box is on Fifth Wheel Trailer
  • If there is not a sticker or stamp on your pin box which has the model on it, you can either call the manufacturer with your VIN and they should be able to tell you, or you can take some measurements and that will allow you to know what model is on your 2015 Primetime Spartan. I have added a link to a help article, "Measuring to Determine the Correct Replacement Pin Box for a 5th-Wheel Trailer" which details this process. That article will have you select the pin box style from a set of...
    view full answer...

  • Replacement Upgraded Pin Boxes for a Lippert 1621 Pin Box
  • Trailair Flex Air 5th Wheel Pin Box # LC328484 is actually not the correct model to replace the Lippert 1621 pin box. Instead it fits the Lippert 0719 pin box so it will not work with your trailer. For your 1621 pin box there are more options: # LC328492 rated for 18,000 pounds # 5AB-E1621-610 rated for 21,000 pounds # 5AB-E1621-16K rated for 16,000 pounds # LC158778 rated for 21,000 pounds # LC328330 rated for 18,000 pounds # LC328329 rated for 21,000 pounds The TrailAir and...
    view full answer...

  • Recommended 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter To Improve Ride
  • We do offer Air Ride Goose Box pin boxes that will work with a gooseneck hitch in your truck. The included air bag and dual shocks help provide cushion and reduce road shock, while improving the overall ride. If you have a Lippert 1621, 0719, or 1621HD, or Fabex PB-600 series pin box on your trailer you can use part # RP94716 with a 16,000-lb capacity. For a 20,000-lb capacity pin Air Ride pin box you can use part # RP94720 if you have a 1621 or 1621HD Lippert pin box on your...
    view full answer...

  • How to Determine What Pin Box a Trailer has For Trailair Replacement
  • If you have a Lippert 1621 pin box on your 2008 Timberland RPM Series, Model 295FB the measurements will match exactly what is in the chart of the FAQ article I attached. Close isn't enough, they have to be exact. If you wanted to take all of the necessary measurements and email me back with the exact measurements I can see if there is a replacement that would work. Pictures of the measurements can be misleading so that wouldn't be necessary. If you could give me the needed measurements...
    view full answer...

  • Improved Turning Clearance with 2015 Ram 2500 and Keystone 5th Wheel with Fabex 663 Pin Box
  • We have replacement pin boxes that will work for you, but the Lippert Components Trailair Rota-Flex 5th Wheel Pin Box # LC328330 is not a compatible replacement for a Fabex 663 pin box. The # LC328330 is designed as a replacement for the Lippert 1621 pin box. The measurements between the Lippert 1621 and Fabex 663 are similar in some aspects, but very different in others. I have attached a help article on measuring to determine the correct replacement pin box for you. It includes a...
    view full answer...

  • Compatibility of Lippert Trailair Rota-Flex # LC328330 with Long Bed Truck
  • The Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs # LC328330 is compatible with both long and short bed trucks. The turning clearance will be determined by the 5th wheel hitch. I recommend using a sliding 5th wheel hitch with a short bed versus a fixed hitch with a long bed. The Trailair Rota-Flex pin box will work well for you as long as you have a 1621 pin box you are wanting to replace. the Rota-Flex uses a pivoting head with a rubber compound integrated to...
    view full answer...

  • Adjusting Lippert Components Rota-Flex 5th Wheel Pin Box
  • In order to resist the chucking (fore and aft jarring movement) experienced, the swiveling skid plate is pretty stiff by design. The relatively gentle jarring experienced during hitching will not move the plate much at all but any chucking experienced during travel will be dampened by the pin box. The bolts that hold the skid or pin plate to the pin box are properly torqued during the assembly process, and for safety reasons should not be loosened. Once the pin box is installed and...
    view full answer...

  • Will Trailair Rota-Flex Keep Fifth Wheel at Same Height When Replacing Lippert 1621 Pin Box
  • I reached out to the manufacturer and got the specs for both the Lippert 1621 5th Wheel Pin Box # LC1191191 and the Trailair Rota-Flex # LC328330 which it is designed to replace. These pin boxes have very similar dimensions, though the the Rota-Flex is about an inch lower overall. This small difference should allow you to keep your trailer level, though you may need to slightly adjust the height of your truck's fifth wheel hitch. The Trailair Rota-Flex # LC328330 will be an upgrade...
    view full answer...

  • Dimensions of the Rota-Flex 5th Wheel Pin Box # 328330
  • The Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs # LC328330 does require capture plates for the Demco Hijacker autoslide that is similar to the Pull Rite Autoslide you have. The measurement from the front of the plate to the king pin is 4-1/2 inches. The overall plate is 11.387 inches by 12.655 inches.
    view full answer...

  • Difficulty Getting Jaws to Open on B&W Companion Hitch with Rota-Flex Pin Box on Trailer
  • The king pin on the Rota-Flex pin boxes does pivot and if you are parked on uneven ground then it is possible that the hitch jaws are bound up some. Moving the truck and trailer to level ground or even pulling forward or backward a little could be enough to release the tension and make it easier to uncouple the trailer. There isn't any sort of adjustment you can make on the pin box that would help. You could also try lubricating the moving parts of the hitch to make them easier to operate....
    view full answer...

  • Upgraded Pin Box to Replace Lippert 1621 That Will Not Affect Trailer Ride Height
  • The 5th Airborne Premium Air Ride Coupler, part # 5AB-E1621-16K, is designed not to add any additional height to your towing setup so it's your best option. The Trailair options, the Rota-Flex # LC328330 and the Flex Air # LC328492, both usually add about 2 inches or so.
    view full answer...

  • Cushioned Pin Box Recommendation for Replacing Leland 7920
  • We have great options for cushioned pin boxes that are designed to replace your Leland 7920 but the fits for a Lippert 1621 are not correct. The most similar to the RotaFlex is the Demco Glide Ride part # DM8250011 which has a 19k capacity and a parallel linkage system that allows the king to move forward and back to help reduce chucking. This does an excellent job reducing noise and banging and also has a great price so we recommend it highly.
    view full answer...

  • Using Trailair Replacement King Pin with Andersen Ultimate Connection
  • I checked with Andersen and they do state that their Ultimate 5th Wheel Connection can be used with the Trailair Rota-Flex 5th Wheel Pin Box like the part # LC328330 that you mentioned. As you referenced, you will just want to use the Rota-Flex Lockout Kit to prevent the rubber pad from shifting over time. We do not currently have this part available. The Trailair Rota-Flex Pin Box is a great pin box replacement that features a pivoting head and a built-in rubber compound that will work...
    view full answer...

  • How Many Bolts Get Used to Install a RotaFlex Pin Box on a Trailer
  • When you attach a RotoFlex pin box like the part # LC328330 you will need to use the same amount of bolts per side of the pin box like that the original pin box used to secure to the trailer frame. Some setups will require only 4 bolts and some may require 5 or 6. It really depends on the trailer and what was originally on the trailer.
    view full answer...

  • Recommended Replacement Fabex 560 Pin Box for Better Turning Clearance
  • I can help you find a solution to your clearance issue but you will not want to drill into the Rota-Flex 1621 because it can damage the structure integrity of the unit. Instead for your Fabex 560 Pin Box, I recommend the # 5AB-S500-700 Air Ride Coupler or the # RP61412 Air Ride King Pin with Sidewinder. These two models are designed for your specific pin box and will mount up perfectly. They will also give you a smoother ride and extend your pin box for better clearance. I have...
    view full answer...

  • What are the Dimensions of the Trailair Rota-Flex Pin Box # LC328330
  • I went out to our warehouse to measure the Trailair Rota-Flex Pin Box, # LC328330, and found that the width is 12 inches. When measuring the length of a pin box, you want to find the distance from the center of the king pin to the bolt holes. The distance from the front row of bolt holes to the center of the king pin is 17-3/4 inches. The distance from the back row of bolt holes to the king pin is 25-5/8 inches. A few other measurements that you will want to consider are the bolt hole diameter,...
    view full answer...

  • Cushioned Pin Box Fits to Replace Lippert 1621 Pin Box
  • Replacement 5th wheel king pin boxes like the cushioned Rota-Flex units are specified as replacements for certain specific OEM ,models like your Lippert 1621. So long as you choose one that is intended to fit in place the of the 1621 the weight rating and dimensions will already be confirmed to be compatible. We have several models of cushioned pin box to replace the Lippert 1621. These are shown on the linked page and both come from Reese. The 16K option is part # 5AB-E1621-16K and...
    view full answer...

  • Measurement From King Pin Base To Front of Trailair Rota-Flex Pin Box # LC328330
  • I went out to our warehouse to take the measurement and the Trailair Rota-Flex 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs # LC328330 is 4-1/2 inches from the front base of the king pin to the front of the pin box when you measure for the straight distance. If you follow the curve of the plate it measures 5-3/8 inches. I've attached a photo to assist.
    view full answer...

  • Lippert Cushioned Pin Box to Replace RotoFlex LC328330 to Be Used with Andersen Ultimate
  • Based on your Rota-Flex part number being # LC328330 that means you have a Lippert 1621 pin box designed frame. The regular Trailair can be used with the Andersen Ultimate part # AM3225 so you would need the pin box part # LC158778 for your trailer that you referenced.
    view full answer...

  • Changing the Rubber Jounce Stops in a Rota-Flex Pin Box
  • I can tell you the procedure for replacing the jounce stops on the Rota-Flex pin box though the exact replacement parts are not available like you said. They are a rubber compound but the specifics of it I do not know. 1. With Long Needle-nose pliers, from the back of the pinbox, squeeze tag ends of Cotter Pin together and push it out of the Front Jounce Stop and it’s channel. Cotter Pin may need to be pulled out from the front of the pinbox to completely remove it from the Jounce Stop. 2....
    view full answer...


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Info for this part was:

Expert Research:
Michael L
Edited by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Photos by:
Sam P
Written by:
Chelsea B

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