Husky Trailer Couplers: Ball Size, Tongue Width & A-Frame Types

Replacing a trailer coupler starts with three measurements: the hitch-ball diameter, the trailer tongue's cross-section and the maximum gross trailer weight. Husky Towing's 87070–87076 straight-channel couplers are not interchangeable with its welded A-frame models 87077, 87080 and 87081. Compare the exact manufacturer number before cutting or fastening anything to the tongue.

Choose the coupler family first

Straight channel, 1⅞-inch ball87070, 87071 and 87072 are 2,000 lb couplers with 2-, 2½- and 3-inch inside channel widths respectively.
Straight channel, 2-inch ball87073–87075 carry 3,500 lb ratings with three channel widths. 87076 uses the 3-inch channel but has a different 6,000 lb rating.
Weld-on A-frame87077 uses a 2-inch ball and is rated 5,000 lb. The 2 5⁄16-inch 87080 and 87081 are rated 10,000 and 14,000 lb for appropriate 50° trailer A-frames.

Husky straight-channel couplers

These seven designs have an inside channel dimension that must match the actual trailer tongue. Their quick-release wedge-latch mechanism includes a safety pin and retainer chain as described by the manufacturer.

MPN Ball size Inside width Max GTW
87070 1⅞ in 2 in 2,000 lb
87071 1⅞ in 2½ in 2,000 lb
87072 1⅞ in 3 in 2,000 lb
87073 2 in 2 in 3,500 lb
87074 2 in 2½ in 3,500 lb
87075 2 in 3 in 3,500 lb
87076 2 in 3 in 6,000 lb

Husky A-frame couplers

The three A-frame models are designed for welding to compatible 50-degree A-frame tongues; they are not straight-channel slip-over replacements. Their integrated jack cutout is for a compatible A-frame trailer tongue jack, subject to the trailer's installation requirements.

MPN Ball size Max GTW Mounting design
87077 2 in 5,000 lb 50° A-frame, weld-on
87080 2 5⁄16 in 10,000 lb 50° A-frame, weld-on
87081 2 5⁄16 in 14,000 lb 50° A-frame, weld-on
Never interchange hitch-ball diameters. A coupler designed for a 1⅞-inch ball must not be used on a 2-inch ball, and a 2-inch coupler is not a substitute for a 2 5⁄16-inch version. Towing capacity is limited by the lowest-rated component in the system, including the vehicle, receiver, ball mount, hitch ball, coupler and trailer.

Before ordering or fitting a trailer coupler

  1. Check the hitch ball stamped on the coupler. Match 1⅞, 2 or 2 5⁄16 inches exactly; there is no universal fit across those diameters.
  2. Measure the trailer tongue. Straight-channel models require the specified inside width. An A-frame coupler requires compatible 50° tongue geometry and an approved welding procedure.
  3. Check gross trailer rating. Compare the maker's maximum GTW with the loaded trailer and every other rated towing component. Do not confuse GTW with tongue weight.
  4. Inspect the latch and safety connection. Verify proper engagement, safety-pin retention and independently rated safety chains. A coupler lock or latch pin is not a replacement for correct coupling.
  5. Follow the installation instructions. Mounting method, weld quality, permitted hardware, tongue condition and corrosion protection affect safety. Have structural welding performed by a qualified professional.

Shop the exact Husky coupler models

These cards open the matching Husky Towing part numbers on NewRVParts. Products ship from supplier warehouses; warehouse viewing and pickup are not available.

Other trailer-connection guides

For other parts of the trailer connection, compare our DeadBolt trailer coupler lock sizes, CURT coupler safety pin comparison and Husky ball mount sizing. Check each item's specifications separately rather than assuming components pair together.

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