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Fifth Airborne Replacement Trailer King Pin with Air Cushions by Fifth Gear

Fifth Airborne Summary:

Similar to the cushioned Convert-A-Ball ballmounts with standard "bumper" towing, the Fifth Gear Fifth Airborne Replacement King Pins take the clanking and forceful jerks out of towing a fifth wheel trailer. The air-ride king pin uses an adjustable Firestone air bag and heavy-duty gas shock to absorb and control the shocks in the road. They reduce vertical shock (up and down) by 44.1 percent and longitudinal chucking (front to back) by 59.9 percent - Fifth Airborne is the only king pin on the market that reduces shocks in both directions! The reduction in shock between the truck and trailer offers increased safety, a smoother ride, and improved truck and trailer handling. Reduced vibration is also easier not only on the truck and trailer contents, but on their frames.
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Fifth Airborne Components:

  • Rear mounted, heavy-duty shock absorber
  • Enclosed air spring/Firestone Air bag
  • King pin
  • Pivot point - allows king pin to move up and down
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What We Need to Know When Choosing a Fifth Airborne:

1. Trailer King Pin type - The Air-Ride couplers are custom designed to replace the standard king pins on trailers, so we'll need to find out the part number of the pin box (king pin) on the trailer.
  • Most king pins will have the pinbox number on a sticker, or it will be stamped on the king pin itself. If it's worn away or missing, the customer will have to call the trailer manufacturer with their VIN or serial number to obtain the coupler type.
  • Because the air-ride couplers are custom designed, they simply bolt in place of the existing king pin - no drilling required.
    • We can use existing hardware, but new grade 8 bolts are recommended for installation.
2. Air compressor - the air bag in the king pin box is adjustable and must be filled from time to time
  • Standard Schrader valves that are used are easily accessible on the Fifth Airborne Air-Ride coupler.
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Fifth Airborne Details:

  • Pre-assembled for quick and easy installation
  • Bolts onto trailer using existing holes and hardware
  • Cushions shock with adjustable air spring and shock absorber
    • Reduces longitudinal shock (chucking) by nearly 60 percent
    • Decreases vertical shock by 44 percent
    • Relieves stress on coach frame
    • Reduces vibration inside coach and protects contents
    • Smoother ride means less fatigue for driver and passengers
  • Air spring is enclosed within the coupler for protection against the elements
  • Compatible with Venture, Fabex, M&M, Lippert, RBW, Keystone, Atwood, Leland and Youngs Welding trailer frames and pin boxes
    • Available in standard and tube styles
  • Pin box has built-in friction-sway control
  • Streamlined, aerodynamic design
  • Capacity: 21,000 lbs; CSA approved
  • 3-Year limited warranty
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