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Adjustable Couplers
Bulldog is the most trusted name in trailer couplers, and our Adjustable Trailer Couplers are no exception. For over 80 years, Bulldog has been building that reputation with a number of innovations that have enabled it to stay out in front of the completion. Designed for the most rugged applications, like horse and livestock hauling, utility hauling, and construction trailer use, these couplers are the strongest in the industry.

The Bulldog Adjustable Height Coupler is available in either a Wedge Latch® style or Channel Mount style.

  • The Wedge Latch® Adjustable Height Coupler features patented coupler technology for positive, secure locking. An (optional) available height channel bracket allows the selection of up to five height settings, ensuring a perfect match to the trailer height for safe and secure towing.
  • The Channel Mount Adjustable Height Coupler also offers a range of height adjustments to assure level operation when an individual trailer is pulled by a variety of vehicles. Collar Lok technology ensure a continuously tight ball fit, an industry exclusive.

Designed to fit inside a 3” channel for quick, convenient adjustment, the channel mount adjustable height coupler provides for a precise fit to the towing vehicle.

Bulldog Adjustable Height Couplers are the strongest, most durable adjustable couplers in the marketplace. Advanced design and rugged construction ensure long and trouble free operation.

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Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, 7000 lbs.
Part Number:028390
Brand:BULLDOG
Ball Size:2 in.
Capacity: 7,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Rigid Mount Adjustable Trailer Coupler

Rigid Mount Adjustable Trailer Coupler
Product Not Yet Rated
Rigid Mount Adjustable Coupler, 7000 lbs.
Part Number:028584
Brand:BULLDOG
Ball Size:2 in.
Capacity: 7,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Rigid Mount Adjustable Trailer Coupler

Rigid Mount Adjustable Trailer Coupler
Product Not Yet Rated
Rigid Mount Adjustable Coupler, 12,500 lbs.
Part Number:028585
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 12,500 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, 12,500 lbs.
Part Number:028630
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 12,500 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, 15,000 lbs.
Part Number:028657
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 15,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Coupler Pin/Lanyard

Coupler Pin/Lanyard
Product Not Yet Rated
Pin/Lanyard-5/16" w/4 Link Chain & Tab
Part Number:PL4 0201
Brand:BULLDOG
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Flat Mount Trailer Coupler Plate

Flat Mount Trailer Coupler Plate
Product Not Yet Rated
Coupler Plate, 20,000 lbs. Cast - Primed
Part Number:4420000317
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 20,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Flat Mount Trailer Coupler Plate

Flat Mount Trailer Coupler Plate
Product Not Yet Rated
Coupler Plate, 25,000 lbs. Cast - Primed
Part Number:4425000317
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 25,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, Cast Head, w/Hardware, 3 Position Channel, 8000 lbs.
Part Number:A2003C0317
Brand:BULLDOG
Ball Size:2 in.
Capacity: 8,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, Cast Head, w/Hardware, 5 Position Channel, 8000 lbs.
Part Number:A2005C0317
Brand:BULLDOG
Ball Size:2 in.
Capacity: 8,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, Cast Head, w/Hardware, Less Channel, 8000 lbs. - Primed
Part Number:A200C 0317
Brand:BULLDOG
Ball Size:2 in.
Capacity: 8,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, Cast Head, w/Hardware, 3 Position Channel, 14,000 lbs.
Part Number:A2563C0317
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 14,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, Cast Head, w/Hardware, 5 Position Channel, 14,000 lbs.
Part Number:A2565C0317
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 14,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Channel Mount Trailer Coupler

Adjustable Channel Mount Trailer Coupler
Product Not Yet Rated
Adjustable Coupler, Cast Head, w/Hardware, Less Channel, 14,000 lbs. - Primed
Part Number:A256C 0317
Brand:BULLDOG
Ball Size:2-5/16 in.
Capacity: 14,000 lbs.
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Coupler Channel

Adjustable Coupler Channel
Product Not Yet Rated
4 Hole, 3 Position Channel, w/8" Height
Part Number:AC300 0300
Brand:BULLDOG
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Product Not Vehicle SpecificProduct Not Vehicle Specific
Adjustable Coupler Channel

Adjustable Coupler Channel
Product Not Yet Rated
6 Hole, 5 Position Channel, w/11-3/4" Height
Part Number:AC500 0300
Brand:BULLDOG
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Product Not Vehicle SpecificProduct Not Vehicle Specific