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Shop Lippert 328492 Flex Air M15 pin box with 18,000 lb capacity, air ride suspension, and integrated shock absorber for smoother towing.
3 in stock
3 in stock
The Lippert 328492 Flex Air M15 pin box is engineered to improve towing comfort by reducing vibration, chucking, and road shock transferred between the tow vehicle and fifth wheel trailer. Rated for 18,000 lb gross trailer weight capacity, it combines Trailair air ride technology with an internal shock absorber to help smooth out uneven road conditions. || The adjustable air bag absorbs vertical impacts while the hydraulic shock controls rebound movement, creating a more controlled towing experience. This design helps reduce stress on both trailer components and hitch equipment during long-distance travel. || Built for fifth wheel RV applications utilizing the M15 mounting pattern, the heavy-duty steel construction provides durability while maintaining OEM-style fitment. The Flex Air design is widely recognized for improving ride quality and towing confidence on highways and secondary roads.
| Brand | Lippert |
|---|---|
| Model | Flex Air M15 |
| MPN | 328492 |
| Product Type | 5th Wheel Pin Box |
| Material | Steel |
| Finish Color | Black |
| Dimensions | Not Published |
| Weight (lb) | 155 lb |
| Load Capacity | 18000 lb |
| Drawer Count | Not Published |
| Drawer Type | Not Published |
| Lock Type | King Pin Coupler |
| Mount Type | Pin box mount |
| Installation | Bolt-on |
| Compatibility | M15 Chassis |
| Use Case | RV Towing |
| Warranty | 1 Year Limited |
| Country of Origin | United States |
| Series | Flex Air |
| UPC | 848150022363 |
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