5th Airborne with Sidewinder Premium Fifth Wheel Air-Ride Coupler for Short Bed Trucks

Fifth Gear Fifth Wheel King Pin - ST400-5AS02

5th Airborne with Sidewinder Premium Fifth Wheel Air-Ride Coupler for Short-Bed Trucks - ST400-5AS02

The 5th Airborne Sidewinder premium fifth wheel pin box coupler has been designed specifically for short-bed pickups. The Sidewinder makes it possible to make 90-degree turns without exiting the truck, throwing a switch or even pushing a button. The 5th Airborne fifth wheel coupler air spring and shock absorber cushions the impact on the truck and trailer, providing a much more comfortable fifth wheel towing experience. Enjoy the best of both worlds!

Features:

• Designed specifically for short-bed pickups
  • Refer to the formula below to ensure proper clearance
• Length of Sidewinder arm: 22"
• Simply bolts onto the fifth wheel trailer pin box
• Pre-assembled for quick and easy installation
• King pin connects to standard fifth wheel trailer hitch in the truck bed
• 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 - protecting its contents (cabinets, TVs, etc.)
  • Smoother ride means less fatigue for driver and passengers
• Pin box has built-in friction-sway control
• Custom tuned air spring is protected within an enclosure
• The Sidewinder moves the trailer's pivot position an additional 22" to the rear of the fifth wheel hitch attachment point
  • Make 90-degree turns without getting out of your truck, throwing a switch or pushing a button
    • No fifth wheel slider needed
  • No contact between truck cab and coach
  • Trailer tracks more closely to the truck for better driveability
  • Full use of truck bed space
  • Easy hookup or disconnect at any angle
  • Faster steering wheel response, easier to reverse
• C-channel design provides more stability and strength than standard pin box design
  • Able to support heavier loads

Specs:

• Designed for use with Leland 7910, 7920 and 7921 pin boxes
• Capacity: 19,500 lbs; CSA approved
• 3-Year limited warranty
• Made in the USA

Clearance Formula:
Use the formula below to ensure there will be enough space between your truck cab and trailer when executing a 90-degree turn.

(A + B) - C = Clearance
A= Distance from center of fifth wheel hitch jaw to truck cab
B= Length of Sidewinder arm (19.5K = 22")
C= Width of trailer divided by 2 (to get half)

For example: If the distance from the center of the hitch to the cab is 36", 36" + 22" = 58". If your fifth wheel trailer is 102" wide, take half (51"), then plug in: 58" - 51" = 7" of clearance.

1. Rotating turret - attaches to the pin box on the trailer and provides the new pivot point 22" behind the king pin, allowing for maximum maneuvering
2. Rear mounted, heavy-duty shock absorber
3. Enclosed air spring - also absorbs shock and is protected from UV exposure and shielded from road hazards
4. Universal king pin locking wedge (not pictured) - reversible and adjustable - prevents pivot at fifth wheel hitch
5. King pin - connects to fifth wheel trailer hitch in truck bed

Nimble and quick. Up to 90-degree turning.
It is now possible to turn the short-bed truck 90 degrees with no fear of contact between the truck's cab and the coach. The included universal king pin locking wedge prevents the trailer from turning/pivoting at the trailer hitch. The rotating turret allows turning/pivoting to take place an additional 22" away from the cab.

Hitch Specifics and Wedge Locations
1. Draw-Tite, Hidden Hitch and Reese (15K, 16K and 20K Select Series) Husky, Owens, Valley and similar units
2. Reese Signature Series and similar units
3. Holland and similar units

A. Bolt locations
B. King pin

Custom Wedges: The included universal wedge works great on preventing the king pin from rotating in most fifth wheel hitches. However, Holland and PullRite hitches will require a custom wedge.

Hitch Problems: The Sidewinder models will work well with all fifth wheel hitches, except for the Curt Q5 and the B&W Companion. The Curt Q5 cushioning allows too much movement for the Sidewinder to operate properly. The B&W hitch requires two additional bolts (1/2", grade 5) to be installed at the rear most support to keep the hitch from rotating. Check with B&W about warranty regulations.

ST400-5AS02 - 5th Airborne Sidewinder Premium Fifth Wheel Air-Ride Coupler for Short-Bed Trucks

Customers compare ST400-5AS02 to these similar products

Sidewinder Fifth Wheel King Pin with Rotating Turret by 5th Airborne, 16K$906.31

5th Airborne with Sidewinder Premium Fifth Wheel Air-Ride Coupler for Short Bed Trucks$1,805.83

5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret - 16,000 lbs$1,936.90

5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret - 19,500 lbs$1,884.90

5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret - 16,000 lbs$1,949.56

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Ask the Experts about this Fifth Gear Fifth Wheel King Pin
Do you have a question about this Fifth Wheel King Pin?

• Can a 5th Wheel Trailer with Sidewinder by Towed with No Wedge or Lock Out Bolts Installed
  
• The wedge is required to prevent a pivot point at the 5th wheel hitch jaws. The function of a Sidewinder is to move that pivot point back further on the truck which requires blocking the pivot point at the hitch. The trailer should not be towed without the wedge in place unless the lock out bolts are installed to lock out the pivot point at the Sidewinder. The universal wedge that is supposed to come with the 5th Airborne with Sidewinder, # ST400-5AS02, is actually # 201100. There are additio
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• Pin Box Reese Dimensions for the 5th Airborne with Sidewinder Air-Ride Coupler # ST400-5AS02
  
• The 5th Airborne with Sidewinder Air-Ride Coupler, # ST400-5AS02, utilizes the # ST400 Sidewinder Rotating Turret. I have added a photo that shows the dimension of the turret for you to review. The distance from the center of the rotating turret to the center of the king pin is 22 inches. Your trailer pin box configuration will also affect the adjustment dimensions for your trailer.
  view full answer...


• 5th Wheel Trailer Hitch and Installation Kit Recommendation for a 2008 Ford F-250 Super Duty
  
• If your truck bed on the 2008 Ford F-250 is 6-3/4 feet long, a slider hitch should work well. I would go with a round tube slider hitch, like # RP30075, because they offer the most travel at 12 inches. The hitch height is adjustable from 15 to 18 inches. Since your truck is lifted, you will want to measure from the bottom of the pin box (not the king pin) to the bed of the truck when both are on level ground. If it is less than 15 inches, the hitch will be too tall. For an installation kit, I
  view full answer...


• Fifth Airborne Air Ride Coupler with Sidewinder for a Leland 7910 Pin Box
  
• Since you have a Leland 7910 pin box on your trailer, you can use the 5th Airborne with Sidewinder Premium Fifth Wheel Air-Ride Coupler, # ST400-5AS02, that you have referenced. This model is rated for 19,500 pounds. We also have a 16,000 pound model, # ST400-5AS16K. These units do not come with hardware for mounting. You will need to provide your own hardware. The old hardware should not be used. Make sure to use the same size as the old hardware and that it is grade 5. The units do come
  view full answer...