Description
The Lippert 155943 Trailair M19 Air Ride Pin Box is engineered to deliver a smoother and more controlled towing experience for fifth wheel trailers. Utilizing advanced air ride technology with a gas shock and air bag system, this pin box absorbs road shock and reduces fore-to-aft movement (chucking), improving ride comfort and protecting your RV.
Designed as a direct replacement for Lippert 1116 pin boxes, the M19 model features a scissor-action suspension system that allows the air bag to absorb impacts while the gas shock controls rebound. This combination results in improved stability, reduced driver fatigue, and enhanced protection for your trailer and cargo.
Key Specifications
- Manufacturer Part Number (MPN): 155943
- Product Line: Trailair M19 Air Ride
- Type: Air Ride Pin Box
- Coupler Type: King Pin
- Gross Weight Capacity: 21,000 lb
- Length: 22-7/16 Inch
- Width: 12-1/2 Inch
- Bolt Pattern: 3 Row
- Horizontal Bolt Spacing: 8-3/4 Inch
- Vertical Bolt Spacing: 2-1/2 Inch
- Material: Steel
- Finish: Black Powder Coated
- King Pin: Included
- King Turret: No
- King Pin Locking Wedge: Not Included
- Turret: No
- Spacers: Not Included
- Quantity: Single
- Condition: New
Features & Benefits
- Air bag and gas shock system absorbs road shock and vibration
- Reduces chucking (fore-to-aft movement) for smoother towing
- Scissor-action suspension design improves ride control
- Helps protect RV frame and interior components from damage
- Designed as a direct replacement for Lippert 1116 pin boxes
- Heavy-duty steel construction ensures durability
- Powder-coated finish resists corrosion and wear
- Improves driver comfort and towing stability
Fitment Notes
- Designed to replace Lippert 1116 pin box configurations
- Compatible with fifth wheel trailers using standard king pin couplers
- Verify bolt pattern and mounting dimensions before installation
- Professional installation recommended
Estimate shipping
You may also like
Recently viewed
Thousands of Parts for RV, Marine, Truck & Towing
We’re continually adding and updating new and used parts across our growing online catalog.
Shop RV appliances and replacement parts, marine products, truck accessories, towing and trailer equipment, electrical and plumbing components, and more from leading brands.
Can’t find the exact part you need? Text or email with the manufacturer part number, model number, or product details and we’ll help check availability.
Our Collections