CURT weight distribution hitch shank 2-1/2-inch receiver — 2" drop / 6" rise, carbide black, 15,000 lb GTW

CURT 17131 is a heavy-duty replacement shank that gives you adjustable rise or drop for CURT weight distribution hitches, fitting 2-1/2" receiver tubes and rated for demanding towing tasks.

If your towing setup needs a rugged, reliable shank that restores or improves leveling control, the CURT 17131 replacement weight distribution hitch shank is engineered for that purpose. Built from solid steel and finished in a carbide black powder coat, this shank is a direct replacement for CURT weight distribution systems and works with 2-1/2" x 2-1/2" receiver tubes that accept a 5/8" pin. It offers straightforward adjustability so you can dial in trailer height and tongue load without guessing.

How does this shank adjust trailer and vehicle height?

The CURT 17131 lets you change the vertical position of the weight distribution head to correct tongue weight and level the towing combination. You can mount the head in multiple hole positions or flip the shank to choose between a drop or a rise orientation for wider height range.

• Flip to use a maximum 6" rise or a maximum 2" drop
• Vertical shank holes are 3/4" diameter, spaced 1-1/4" center-to-center
• Multiple head positions allow fine-tuning of trailer pitch and tongue weight

Will it fit my hitch and trailer rig?

This replacement shank is designed to work with all CURT weight distribution hitches and standard 2-1/2" receiver tubes that include a 5/8" hitch pin hole. The receiver portion measures 2-1/2" x 2-1/2", making it compatible with CURT Commercial Duty class 5 hitches and other 2-1/2" systems.

• Receiver shank: 2-1/2" x 2-1/2" for standard fitment
• Hitch pin hole sized for 5/8" pin to match common hardware
• Universal vertical shank geometry works across CURT WD heads

How tough is the CURT 17131 for long-term towing?

Durability is central to this shank's design: it’s made from high-strength steel and coated with a carbide black powder finish for corrosion resistance. That protective coating helps resist the effects of road salt, mud, rain, and UV exposure so the shank holds up season after season.

• Constructed from solid steel for structural strength
• Carbide black powder coat resists rust and abrasion
• Engineered to withstand repeated install/removal and heavy loads

What load capacities and adjustments should I expect?

The CURT 17131 is rated to handle significant towing loads while offering flexible head-height adjustments for accurate leveling. It supports a high gross trailer weight and a substantial tongue weight for most demanding towing tasks.

• Gross trailer weight rating: 15,000 lbs
• Tongue weight rating: 1,500 lbs
• Multiple vertical positions for precise head height tuning

Who is this for: The CURT 17131 replacement shank is aimed at owners of CURT weight distribution systems, commercial and recreational tow vehicle operators who need dependable adjustability and higher load capacity, and anyone replacing a worn or incompatible shank on a 2-1/2" receiver. It’s especially useful for drivers who swap trailers, carry varying loads, or require micro-adjustments to achieve a level tow. If you want a straightforward, heavy-duty shank that restores proper hitch geometry and resists the elements, this model provides the fit, strength, and adjustability required for consistent towing performance.