Lippert Components 155933L07 Air Ride Pin Box, 21K (Replaces LCI 1716 Pin Box)
Brand: Lippert Components
Air bag acts as a buffer between the tow vehicle and coach to absorb road shock and vibration
Improves ride and reduces driver fatigue
Can be retrofitted to most pin boxes on the market
Replaces all popular LCI pin boxes: 16K (1621), 18K (1621), 21K long jaw (1621), 21K (1716), 18K (0719), 21K (1116)