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Bulldog 0289640300 - Gooseneck Trailer Coupler - 25,000 lb

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SKU 1289000300
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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 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
  • Continuous tight ball fit - ever-increasing cam tightening 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
  • Innovations that improve security, service life, and functionality
  • New ball pocket design provides contact on both sides of the ball for substantially 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
  • Capacity: 25,000 lb
  • Retracted Height: 27.5"
  • Extended Height: 35.5"
  • Range of Adjustment: 8"
  • Ball Size: 2 5/16"
  • Inner Tube Diameter: 4"
  • Outer Tube Diameter: 4.5"
  • Warranty: 5 Year

Installation kit

An installation kit is needed for proper installation on your vehicle


Manufacturer Part #:1289000300
Extended Height:35.5"
Adjustment Range:8"
Capacity (lbs):25000
Inner Diameter:4"
Outer Diameter:4.5"
Retracted Height:27.5"
Coupler Type:Gooseneck
Ball Size (in):2 5/16
Tube Type:Round
Warranty:5 Year