OEM replacement hitch ball for Equal-i-zer 4-Point Sway Control® weight distribution systems. 2-5/16" ball diameter. 16,000 lb capacity — the highest-rated ball in the Equal-i-zer lineup. 1-1/4" diameter x 2-1/4" long shank. Forged high-strength chromoly steel with double chrome plating. Lock washer and nut included. Made in the USA. 2-year limited warranty.
The hitch ball is the single point of contact between your tow vehicle and your trailer — and using a ball that's rated below your trailer's actual tongue weight is a safety risk that's easy to overlook but serious in its consequences. The Equal-i-zer 91-00-6160 is the highest-capacity ball in the Equal-i-zer lineup, rated for 16,000 lb — designed to pair with the 1,400 lb and 1,600 lb tongue weight Equal-i-zer hitch models and their 14,000–16,000 lb GTW ratings.
Equal-i-zer hitch balls are not sold with new hitch systems — they're ordered separately based on your trailer's coupler size and your hitch's rated capacity, allowing you to match the ball precisely to your setup. The 91-00-6160 is forged from high-strength chromoly steel rather than cast steel — a meaningfully stronger material that resists fracture under the dynamic loads of weight distribution towing. Double chrome plating gives the ball a durable, rust-resistant finish. The 1-1/4" diameter threaded shank seats correctly in the hitch head of all Equal-i-zer systems, and a lock washer and nut are included for proper installation.
The highest-rated ball in the Equal-i-zer lineup — pairs with 1,400 and 1,600 lb tongue weight Equal-i-zer hitch systems
Forged — not cast — from high-strength chromoly steel for superior resistance to fracture under dynamic towing loads
Two layers of chrome plating for durable rust resistance and a polished finish that holds up under regular outdoor use
Comes with the lock washer and nut needed for proper installation — ready to install out of the package
The hitch ball must be rated at or above your trailer's tongue weight and your hitch's rated capacity. Using a ball rated below your hitch or trailer's actual tongue weight puts excessive stress on the ball shank and risks catastrophic failure while towing. The 91-00-6160 is the correct ball for: • Equal-i-zer 90-00-1400 (1,400 lb TW / 14,000 lb GTW) hitch systems • Equal-i-zer 90-00-1600 (1,600 lb TW / 16,000 lb GTW) hitch systems For lower-rated systems, use the appropriately matched ball: • 91-00-6080 — 2" ball, 8,000 lb (for 90-00-0600 and 90-00-1000 systems) • 91-00-6100 — 2-5/16" ball, 10,000 lb (for 90-00-1000 system) • 91-00-6120 — 2-5/16" ball, 12,000 lb (for 90-00-1200 system) • 91-00-6140 — 2-5/16" ball, 14,000 lb (for 90-00-1400 system) Also confirm your trailer's coupler size: The 91-00-6160 has a 2-5/16" ball — confirm your trailer coupler is sized for a 2-5/16" ball before ordering. Using the wrong ball size prevents the coupler from latching correctly.
Installing the Hitch Ball: 1. Confirm Capacity Match: Verify the 91-00-6160's 16,000 lb rating meets or exceeds your trailer's tongue weight and your hitch system's rating 2. Confirm Coupler Size: Verify your trailer coupler is sized for a 2-5/16" ball 3. Insert Shank into Hitch Head: Thread the 1-1/4" shank through the hitch head ball socket from above 4. Install Lock Washer and Nut: Thread the included lock washer and nut onto the shank below the hitch head 5. Torque to Specification: Tighten the nut to the torque specification in the Equal-i-zer Owner's Manual — proper torque is critical for safe ball retention under load 6. Verify Before Each Tow: Check that the ball nut remains properly torqued before every towing trip Refer to the Equal-i-zer Owner's Manual for exact torque specifications. Contact Equal-i-zer at (800) 478-5578 with installation questions.
In The Package: • (1) 91-00-6160 Hitch Ball — 2-5/16", 16,000 lb • (1) Lock Washer • (1) Nut NOT Included: • Equal-i-zer hitch system, shank, or other components — sold separately
Equal-i-zer / Progress Mfg.: Phone: (800) 478-5578 Website: equalizerhitch.com Made in the USA
All Equal-i-zer hitch balls share the same 1-1/4" shank diameter and forged chromoly steel construction. Select by ball diameter and capacity to match your trailer coupler and hitch system rating.
Equal-i-zer hitches are sold without the hitch ball included — order the ball separately to match your trailer's coupler size and your hitch system's tongue weight rating. Contact Equal-i-zer at (800) 478-5578 to confirm the correct ball for your setup.