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

Custom Fit Fifth Wheel Hitch

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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 forcefull jerks out of towing a fifth wheel trailer. The air-ride king pin utilizes as 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% and longitudinal chucking (front to back) by 59.9% - it's the only king pin on the market that reduces shocks in both directions! The less shock between the truck and trailer offers increased safety with a smoother ride along with improved truck and trailer handling. Reduced vibration is also easier not only on the truck and trailer contents, but also their frames.

Fifth Airborne Components

1. Rear mounted, heavy-duty shock absorber
2. Enclosed air spring/Firestone Air bag
3. King pin
4. Pivot point - allows king pin to move up and down

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 listed on a sticker or it will be stamped on the king pin itself. If it's not there or worn out, the customer will have to call the trailer manufactuer with their vin or serial number to have them provide 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 to install
2. Air compressor - the air bag in the king is adjustable and will need to be filled from time to time
   • Standard schrader valves are used and they are easily accessible on the Fifth Airborne Air-Ride coupler.

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%
  • Decreases vertical shock by 44%
  • 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 (See Chart for applications)
  • 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

Fifth Wheel Trailer Pin Box Matrix Conversions

Fifth Gear 5th Airborne and 5th Airborne Sidewinder are custom designed to replace the existing pin box on your trailer. Use the tables below to help find the correct Fifth Gear pin box coupler for your trailer.

Standard Fifth Wheel Pin Boxes
OEM Part Numbers	5th Airborne Part Number	5th Airborne Sidewinder Part Number
Fabex 520, 530 & 560	5AB-S500-700	RP61413
Fabex 663	5AB-S0719-600	RP61423
Leland 7910	5AB-S7910	ST400-5AS02
Lippert 0719	5AB-S0719-600	RP61423
Lippert 1116 & 0115	5AB-S500-700	RP61413
M&M 663	5AB-S0719-600	RP61423
RBW 7019	5AB-S500-700	RP61413
Venture CJ13515	5AB-S13515	ST300-5AS02
Youngs Welding	5AB-S800	ST500-5AS02

Extended Fifth Wheel Pin Boxes
OEM Part Numbers	5th Airborne Part Number	5th Airborne Sidewinder Part Number
Fabex 500, 503 & 765	5AB-E510-710	RP61413
Fabex 665	5AB-E1621-610	RP61423
Leland 7920 & 7921	5AB-E7920	ST400-5AS02
Lippert 1621 & 1621HD	5AB-E1621-610	RP61423
Lippert 1716	5AB-E510-710	RP61413
M&M 665	5AB-E1621-610	RP61423
RBW 7028	5AB-E510-710	RP61413
Venture CJ13517	5AB-E13517	ST300-5AS02
Youngs Welding	5AB-E810	ST500-5AS02

Tube Style Fifth Wheel Pin Boxes
OEM Part Numbers	5th Airborne Part Number	5th Airborne Sidewinder Part Number
Atwood AB-34 & AB-72	5AB-T7234	N/A
Fabex 300, 314 & 316	5AB-T320	N/A
Lippert 0516	5AB-T320	N/A
RBW 7016-2P	5AB-T7016	N/A
RBW 7027	5AB-T320	N/A
Youngs Welding	5AB-T320	N/A
Youngs Welding Straight 8x8	5AB-T820	N/A