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- IMPROVES RIDE – With an internal air bag and built-in strut that absorbs road shock and vibration, the Air Ride reduces chucking, jarring, and bouncing, providing a smooth ride that improves handling and limits strain on both the truck and the trailer
- CUTTING-EDGE SYSTEM – This pin box is uniquely constructed with a built-in shock that protects the air bag from destruction by recoiling the pin box, along with a scissor-like motion that allows it to compress, offsetting bounce and providing cushion
- SIMPLE INSTALLATION – The Air Ride is ready to be installed as soon as it comes out of the box. It uses the same bolts as the original pin box, so no additional hardware is needed for installation
- BUILT TO LAST – Constructed with steel and a black powder coat finish that protects against rust, the Air Ride is extremely long-lasting to ensure peaceful towing day after day
- SPECIALLY DESIGNED – The Air Ride is specifically configured to replace the Lippert 1621 and 1621HD long-jaw 5th wheel pin boxes with a towing capacity of 21,000 lbs.
Bumps in the road are inevitable, but they can be a lot less stressful with the CURT Air Ride 5th wheel pin box. With an internal air bag and built-in strut that absorbs road shock and vibration, the Air Ride provides a smooth ride that limits strain on your truck and trailer by reducing chucking, jarring, and bouncing.
The Air Ride is engineered to handle the rigors of the road. It is built to move in a scissor-like motion that allows the pin box to compress vertically, absorbing road shock and vibration which provides cushion for a smoother ride. Its built-in shock protects the air bag from destruction by recoiling the pin box and handling the rebound or bounce effect, then positions the pin box to be ready for the next bump or impact. The CURT Air Ride 5th wheel pin box serves as a guard between the tow vehicle and RV, suspending the impact of road shock and stabilizing the towing performance.
Towing 21,000 lbs. never felt so good! The Air Ride is designed to replace Lippert 1621 and 1621HD long-jaw 5th wheel pin boxes and has a 21,000 lb. gross trailer weight (GTW). It comes ready to install and uses the same bolts as the original pin box, so it doesn’t require any additional hardware for installation. Constructed with high-strength steel and finished with a black powder coating, the Air Ride is the ultimate 5th wheel pin box to tackle your towing needs for the road ahead.
- Replaces Lippert 1621 and 1621HD long-jaw 5th wheel pin boxes
- Reduces chucking, bouncing and jarring with an internal air bag and built-in strut that absorbs road shock and vibration
- Bolt-on installation with no assembly required
- Steel construction and black powder coat finish that protect against rust
- 21,000-lb. towing capacity
- Made in the USA
| Finish | Black powder coat |
|---|---|
| Material | Steel |
| Width (inches) | 15 |
| Height (inches) | 18 |
| Length (inches) | 42 |
| Weight (pounds) | 203 |
| Towing capacity (pounds) | 21000 |
| Tow capacity (pounds) | 21000 |
| Suspension type | Air Ride (Internal Air Bag + Strut) |
| King pin compatibility | L05 |
| Tow capacity (lbs) | 21000 |
| W capacity (lbs) | 21000 |
| Length (in) | 42 |
| Width (in) | 15 |
| Height (in) | 18 |
| Part number | 158778 |
| Replaces | Lippert 1621 and 1621HD |
| Best for | Smooth ride, heavy-duty 5th wheel towing |
- What is the towing capacity of the curt l05 air ride pin box? The Curt L05 Air Ride Pin Box has a towing capacity of 21,000 lbs.
- Does the curt l05 air ride pin box require additional hardware for installation? No, the Air Ride pin box uses the same bolts as the original pin box and comes ready to install with no additional hardware required.
- What feature helps reduce road shock and vibration in this pin box? The Curt L05 Air Ride Pin Box has an internal air bag and a built-in strut that absorb road shock and vibration, reducing chucking, jarring, and bouncing.
- Is this pin box compatible with lippert 1621 and 1621hd long-jaw 5th wheel pin boxes? Yes, the Curt L05 Air Ride Pin Box is specially designed to replace Lippert 1621 and 1621HD long-jaw 5th wheel pin boxes.
- What materials are used in the construction of the curt l05 air ride pin box? The pin box is constructed with high-strength steel and features a black powder coat finish to protect against rust.
Need a Mobile RV Tech Near You?
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