How to Install Replacement Air Bag in Trailair Air Ride
Updated 10/23/2018 | Published 10/22/2018 >
Products Featured in This Question
Question:
Where can I get instructions to change out the damaged air springs on my pin box? I have received the new bags but no instructions to change out were provided.
asked by: Marvin S
Expert Reply:
According to Lippert, here is how you will need to install your Replacement Air Spring for Trailair 5th Wheel Pin Boxes # LC432404:
"The bag is fastened at the bottom first by inserting the carriage bolt in the keyhole shape opening on the lower plate allowing the bolt head to slide in and be pulled forward securing the bag in place. Secure air bag with the air fill fitting in the up position with 2 locking nuts, not exceeding 20 ft/lbs - torque on the top plate of the air bag. Install air fitting using Teflon tape or pipe sealing compound. Install the shock absorber using the longer bolts with locking nut. Tighten nuts to 60 ft/lbs."
This air bag is a replacement for the following fifth-wheel pin boxes:
- Air Ride 5th Wheel Pin Box - Lippert 1621 & 1621HD - 21,000 lbs # LC158778
- Air Ride 5th Wheel Pin Box - Lippert 0719 - 18,000 lbs # LC179879
- Flex Air 5th Wheel Pin Box - Lippert 0719 - 18,000 lbs # LC328484
- Flex Air 5th Wheel Pin Box - Lippert 1621 - 18,000 lbs # LC328492
- Flex Air 5th Wheel Pin Box - Lippert 1621 - 21,000 lbs # LC369535
Product Page this Question was Asked From
Replacement Air Spring for Trailair 5th Wheel Pin Boxes - Qty 1
- Accessories and Parts
- 5th Wheel Pin Box
- Air Springs
- Trailair Pin Box
- Lippert
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: Westin Sure-Grip Running Boards Full Review – Step Up in Style
- Search Results: 5th wheel pin box
- Search Results: nerf bars ~ running boards
- Shop: Trailair Air Ride 5th Wheel Pin Box - Lippert 0719 - 18,000 lbs
- Video: Trailair Air Ride 5th Wheel Pin Box Feature Review
- Search Results: fifth wheel hitch
- Search Results: fifth wheel king pin
- Shop: Westin Sure-Grip Running Boards - 6" Wide - Black Aluminum
- Shop: Tire Chains
- Shop: Aries RidgeStep Running Boards - 6-1/2" Wide - Black Powder Coated Steel - 75" Long
- Shop: Westin Sure-Grip Running Boards - 6" Wide - Black Aluminum
- Video: Hands-On with the SumoSprings Trailer Helper Springs w/ Line Relocation Bracket
- Shop: Trailer Hitch
- Shop: Pacbrake Alpha HD Air Bag Suspension Kit - Rear Axle - 5,000 lbs
- Shop: Air Lift LoadLifter 5000 Air Helper Springs - Rear Axle
- Shop: Firestone Ride-Rite Red Label Extreme Duty Air Helper Springs - Rear Axle
- Video: Hands-On with the Replacement Air Spring for Trailair 5th Wheel Pin Boxes
- Search Results: triple axle trailer suspension parts
- Video: Review of Lippert Components Trailer Leaf Spring Suspension - LC1564251
- Q&A: Recommended Front Hitch for a 2023 Ford Transit T250 Eco-Boost
- Q&A: Replacement Air Bag for 1621 Curt Flex Air 5th Wheel Pin Box
- Article: The Best Trailer Tongue Locks for Preventing Trailer Theft
- Q&A: How To Fix Trailair Flex Air 5th Wheel Pin Box Losing Pressure
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Q&A: Replacing Lippert Trailair Flex Air Pin Box Air Bag and Shock Assembly Tips
- Q&A: Replacement Air Bag for Trailair Pin Box
- Q&A: Replacement Air Bag for Trailair Pin Box
- Article: How Much Solar Power Do I Need For My RV?
- Q&A: Should Cracked Air Bag for Trailair Air Ride 5th Wheel Pin Box be Replaced
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box


