Collar-Lok™ Adjustable Coupler, 2 Inch Diameter, 7,000 lbs. Capacity

Part No 028390
Designed for utility, horse/livestock, cargo, and construction trailer applications, BULLDOG® Collar-Lok are the strongest in the industry. The BULLDOG® design features th eonly automatic and continuously tight ball fit in the industry. A variety of coupler styles, tongue mounts, and latches allow configurations to match virtually any trailer. Adjustable couplers assure level operation for trailers when pulled by a variety of different vehicles.
  • Easiest to use.
  • Strong in both static and dynamic loading conditions.
  • Hinged ball socket for easy hook up.
  • Clear, visual indication of proper closure.
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Ships free & fast to local dealers
Ships free & fast to local dealers

We ship your order directly to your choice of one of our 1,250+ ShopHitches Network Dealers. More Info More Info

Expert installation available nationwide
Part Number: 028390
Warranty: Limited 5 Year Warranty
UPC: 086693283906
Dimensions: 5" x 9.8" x 4" (Shipping)
Finish: Gray
Weight: 10.5 lbs
Ball Diameter: 2 in.
Channel Width: 2.875 in.
Model No.: 3B6M
Mounting Hole Quantity: 4
Capacity: 7,000 lbs.
Color: Gray
Hitch Class: IV
Mounting Hole Diameter: N/A
Mounting Hardware Included: No
Material: Steel
Length: 9-1/2 in.
Hole Size: 2 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
This product is not vehicle specific.

Below is a listing of commonly asked questions and answers for the Collar-Lok™ Adjustable Coupler, 2 Inch Diameter, 7,000 lbs. Capacity. If you can't find the information you need here, please submit your question to us using the form in our contact page.

Select a question to view the answer.

What ball size is this coupler designed for?
This is designed to work with a 2" ball. 

What is the vertical bolt hole spacing?
The vertical bolt hole spacing is 2" from center to center.