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The hitch arrived in a timely fashion. It was very nice and extremely easy to install. It fit like a glove and within an hour I was on the road. The best part was that I paid half the price, including freight, of the hitch I was quoted at my vehicle dealership. Thanks etrailer.com Sincerely, Randy
Randy, East Glacier Park,MT
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Fifth Gear 5th Airborne Cushioned King Pin and Sidewinder for Fifth Wheel Camping Trailers

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Fifth Gear was created by veterans of the RV market who sought to create a safer, more comfortable, and easier fifth wheel towing experience. The result was the Fifth Airborne Air Ride King Pin Coupler, the Sidewinder and then the combination of the two-the Fifth Airborne Sidewinder. These products make for a much smoother ride and eliminate the need for getting out of the truck when maneuvering your rig with a short bed pickup.





5th Airborne Premium Fifth wheel Air-Ride Pin Box

5th Airborne Premium Fifth wheel Air-Ride Pin Box

The 5th Airborne premium fifth wheel air-ride coupler gives the smoothest ride possible. With it's built in air spring and shock absorber, the 5th Airborne acts as a buffer between the tow vehicle and the trailer, minimizing the challenges in the road. This significantly reduces the negative impact of vertical shock and the front to back jerking, called chucking. Aside from relieving stress on the trailer's frame and reducing vibration for the good of all its contents (tvs, computers, dishes etc.) the air-ride king pin benefits drivers and passengers with reduced fatigue and improved trailer towing safety.

Special Features

  • Air spring and shock offer the smoothest towing experience
  • Relieves stress on the coach frame and trailer contents
  • Industry leading 60 percent reduction in forward and backward jerking (chucking)
  • Industry leading 44 percent reduction in vertical shock

Additional 5th Airborne Premium Fifth wheel Air-Ride Pin Box Features

  • Bolts on for an easy installation
  • Air-Ride King Pin Coupler is custom designed for each coupler type
  • No assembly required
  • Capacity: 21,000 lbs.
  • 3 year warranty




Sidewinder Rotating Fifth Wheel Pin Box

Sidewinder Rotating Fifth Wheel Pin Box

Sidewinder by 5th Airborne is the premium pin box coupler designed specifically for short bed pickups. It allows you to make up to 90-degree turns without exiting your vehicle, throwing a switch, or even pushing a button! Sidewinder's kingpin locking mechanism moves the truck and trailer's pivot position 20 inches rearward of the fifth wheel hitch in the truck bed. This allows for several great features: short bed pickups can now effortlessly handle up to a 90-degree turn with no contact between the truck's cab and the coach, hooking up and disconnecting the trailer can now be done at any angle, the trailer now tracks closer to the truck which means no more extra wide turns and more response when backing up, and lastly the extra clearance allows for full use of your truck's bed space for carrying fuel tanks, toolboxes and cargo. Best of all, it eliminates the need for a fifth wheel hitch slider and therefore the getting in and out of the truck cab whenever you want to maneuver the trailer.

Special Features

  • Eliminates the need for a fifth wheel slider in short bed trucks
  • Make 90-degree turns automatically and effortlessly
  • Hookup and disconnect at any angle
  • Closer trailer tracking for a better steering response
  • Allows full use of truck bed

Additional Sidewinder Rotating Fifth Wheel Pin Box Features

  • Bolts on for an easy installation
  • Custom designed for each coupler type
  • Capacity: 16,000 or 19,000 lbs.
  • 3 year warranty




5th Airborne Sidewinder Air-Ride Rotating Fifth Wheel Pin Box

5th Airborne Sidewinder Air-Ride Rotating Fifth Wheel Pin Box

The 5th Airborne Sidewinder combines the proven vertical shock reduction and anti-chucking ability of the 5th Airborne air-ride coupler with the Sidewinder's nimble and quick turning design for short bed pickup trucks. The 5th Airborne Sidewinder acts as a buffer between the tow vehicle and the trailer which gives you the smoothest ride possible. The Sidewinder's unique design allows you to make up to 90-degree turns without exiting the truck, throwing a switch or even pushing a button.

Special Features

  • Eliminates the need for a fifth wheel slider in short bed trucks
  • Make 90-degree turns automatically and effortlessly
  • Air spring and shock offer the smoothest towing experience
  • Relieves stress on the coach frame and trailer contents

Additional 5th Airborne Sidewinder Air-Ride Rotating Fifth Wheel Pin Box Features

  • Bolts on for an easy installation
  • Custom designed for each coupler type
  • Hookup and disconnect at any angle
  • Allows full use of pickup bed
  • Closer trailer tracking for a better steering response
  • Capacity: 19,500 lbs.
  • 3 year warranty




Custom Wedges for Sidewinder & 5th Airborne Sidewinder

Custom Wedges for Sidewinder & 5th Airborne Sidewinder

To move the pivot point from the fifth wheel hitch back to the rotating turret on the Sidewinder arm, a wedge is slid into the fifth wheel hitch with the king pin. This prevents pivoting at that location. Each Ffith Gear Sidewinder product includes a universal wedge that will work on most fifth wheel trailer hitches. Replacement custom wedges that are designed for specific fifth wheel hitches are available to make for an easier installation. Custom wedges are available for B&W, Colibert, Draw-Tite, Hidden Hitch, Hi-Jacker, Husky, PullRite, RBW, Reese and Valley fifth wheel hitches.

Special Features

  • The wedge is used to prevent the trailer from pivoting at its normal location
  • Replaces universal wedge included with Sidewinder & 5th Airborne Sidewinder
  • Designed for specific fifth wheel trailer hitches

Fifth Wheel Trailer Hitch
(in truck bed)
Universal Wedge Works? Cusom Wedge Number
B&W Yes SWW-05
Colibert Yes SWW-08
Hi-Jacker Yes SWW-04
Holland No Free from 5th Gear*
Husky Yes SWW-04
Owens Yes N/A
Pro Series
by Draw-Tite, Hidden Hitch and Reese
Yes SWW-02
PullRite No SWW-09
RBW Yes SWW-07
Select Series ("original" style)
by Draw-Tite, Hidden Hitch and Reese
Yes SWW-03
Signature & Select Plus Series
by Draw-Tite, Hidden Hitch and Reese
Yes SWW-01
Valley Yes SWW-04

*Call Fifth Gear to receive a free custom wedge if you are towing with a Holland fifth wheel hitch.






Fifth Wheel Trailer Pin Box Matrix Conversions

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

Standard Fifth Wheel Pin Boxes
OEM Part Numbers 5th Airborne Part Number 16K Sidewinder Part Number 19K Sidewinder Part Number 5th Airborne Sidewinder Part Number
Fabex 520, 530 & 560 5AB-S500-700 ST100-SW01 ST100-SW19K ST100-5AS02
Fabex 663 5AB-S600-0719 ST200-SW01 ST200-SW19K ST200-5AS02
Leland 7910 5AB-S7910 ST400-SW01 ST400-SW19K ST400-5AS02
Lippert 0719 5AB-S600-0719 ST200-SW01 ST200-SW19K ST200-5AS02
Lippert 1116 & 0115 5AB-S500-700 ST100-SW01 ST100-SW19K ST100-5AS02
M&M 663 5AB-S600-0719 ST200-SW01 ST200-SW19K ST200-5AS02
RBW 7019 5AB-S500-700 ST100-SW01 ST100-SW19K ST100-5AS02
Venture CJ13515 5AB-S13515 ST300-SW01 ST300-SW19K ST300-5AS02
Youngs Welding 5AB-S800 ST500-SW01 ST500-SW19K ST500-5AS02


Extended Fifth Wheel Pin Boxes
OEM Part Numbers 5th Airborne Part Number 16K Sidewinder Part Number 19K Sidewinder Part Number 5th Airborne Sidewinder Part Number
Fabex 500, 503 & 765 5AB-E510-710 ST100-SW01 ST100-SW19K ST100-5AS02
Fabex 665 5AB-E610-1621 ST200-SW01 ST200-SW19K ST200-5AS02
Leland 7920 & 7921 5AB-E7920 ST400-SW01 ST400-SW19K ST400-5AS02
Lippert 1621 & 1621HD 5AB-E610-1621 ST200-SW01 ST200-SW19K ST200-5AS02
Lippert 1716 5AB-E510-710 ST100-SW01 ST100-SW19K ST100-5AS02
M&M 665 5AB-E610-1621 ST200-SW01 ST200-SW19K ST200-5AS02
RBW 7028 5AB-E510-710 ST100-SW01 ST100-SW19K ST100-5AS02
Venture CJ13517 5AB-S13517 ST300-SW01 ST300-SW19K ST300-5AS02
Youngs Welding 5AB-E810 ST500-SW01 ST500-SW19K ST500-5AS02


Tube Style Fifth Wheel Pin Boxes
OEM Part Numbers 5th Airborne Part Number 16K Sidewinder Part Number 19K Sidewinder Part Number 5th Airborne Sidewinder Part Number
Atwood AB-34 & AB-72 5AB-T34-72 N/A N/A N/A
Fabex 300, 314 & 316 5AB-T320 N/A N/A N/A
Lippert 0516 5AB-T320 N/A N/A N/A
RBW 7016-2P 5AB-T7016 N/A N/A N/A
RBW 7027 5AB-T320 N/A N/A N/A
Youngs Welding 5AB-T320 N/A N/A N/A
Youngs Welding Straight 8x8 5AB-T820 N/A N/A N/A


Custom Fifth Wheel Wedges

The Sidewinder and Fifth Airborne Sidewinder work by moving the pivot point of the truck and trailer form the fifth wheel hitch backwards 20". To do this, a wedge is slid into the trailer hitch along with the trailer king pin to prevent any rotation at that location. A universal wedge is included with the Sidewinder/Fifth Airborne Sidewinder that, with a little modification, will work with most fifth wheel trailer hitches. See the table below to check if you might need a custom wedge designed for your fifth wheel trailer hitch.

Fifth Wheel Trailer Hitch
(in truck bed)
Universal Wedge Works? Cusom Wedge Number
B&W Yes SWW-05
Colibert Yes SWW-08
Hi-Jacker Yes SWW-04
Holland No Free from 5th Gear*
Husky Yes SWW-04
Owens Yes N/A
Pro Series
by Draw-Tite, Hidden Hitch and Reese
Yes SWW-02
PullRite No SWW-09
RBW Yes SWW-07
Select Series ("original" style)
by Draw-Tite, Hidden Hitch and Reese
Yes SWW-03
Signature & Select Plus Series
by Draw-Tite, Hidden Hitch and Reese
Yes SWW-01
Valley Yes SWW-04

*Call Fifth Gear to receive a free custom wedge if you are towing with a Holland fifth wheel hitch.



5th Airborne/Sidewinder