Gooseneck Trailer Coupler

Part No 1289140300
The BULLDOG BX1 coupler is the result of generations of design expertise and field experience. It incorporates innovative features that revolutionize the benefits available from a gooseneck coupler.
  • Offers flexible mounting options with Next Generation locking plate coupler locking mechanism
  • Makes hooking up, adjusting vertical height, and disconnecting quick and easy
  • Maintains smooth operation over time with grease fittings for every important operating part
  • Operates easily with one hand thanks to new locking handle design
  • Provides continuous tight ball fit with ever-increasing cam tightening locking mechanism
  • Provides continuous tight ball fit with ever-increasing cam tightening locking mechanism
  • Protects against wear with enclosed locking pin mechanism
  • Resists theft with integrated feature to allow pad-locking the coupler to the ball (lock not included)
  • Guides ball into socket more easily-letting you miss by more than an inch-with bottom locking plate 50% larger than competitors
  • Lengthens life of locking mechanism with oil-impregnated bushings
  • Allows shorter retracted length and less wasted length for trucks with high bed height via low-profile locking mechanism
  • Fits ball better and reduces jarring through contour-formed edge on bottom locking plate
  • Delivers unmatched strength through heavy-duty construction
  • Includes many modern innovations that improve security, service life, and funcionality
  • New ball pocket design provides contact on both sides of the ball for substanially improved pull out strength - the only sliding-plate design that transfers part of the load to the top locking plate rather than only the bottom locking plate
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Brand: BULLDOG
Part Number: 1289140300
Warranty: Limited 5 Year Warranty
UPC: 016118121469
Dimensions: 8.3" x 9" x 32.3" (Shipping)
Weight: 65.3 lbs
Capacity: 30,000 lbs.
Pin Weight Capacity: Up to 9,000 lbs.
Length: 8 in.
Drop: 38.8 in.
Rise: 30.8 in.
Hole Size: 2-5/16 in.

When used together, the following parts make up the product (Kit) at the top of the page. They can be purchased together as part of the kit or as separate components for replacement or repair; however, ALL of the following MUST be used in order for the above product to work as advertised.

Tool Sizes Needed
Replacement Part - Coupler Repair Kit

Replacement Part - Coupler Repair Kit

Part No 500353

Replacement Part, Repair Kit (BX1™, 3" Ball), Includes Handle Assembly, Locking Cam, Grease Fitting, Grooved Pin, Flanged Bushing & Torsion Spring

This product is not vehicle specific.
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