NBJINGYI Straight Trailer Coupler for 2" Ball and 2"

NBJINGYI's straight 2" trailer coupler secures a 2" hitch ball to a 2" channel tongue with a 3,500 lb gross trailer weight rating and a durable black E-coating.

This heavy-duty coupler is built for boat, utility and equipment trailers that use a standard 2" ball and 2" channel tongue. Machined from thick, die-cut steel and finished with an electrophoretic E-coat, it balances everyday durability with corrosion resistance and a finished appearance. The design includes a quick-release spring-loaded latch, pre-drilled holes for safety pins or locks, and compatibility that simplifies fleet use by standardizing on a common ball size.

How does this coupler handle heavier trailers and loads?

The NBJINGYI coupler is rated for a 3,500 lb gross trailer weight (GTW), making it suitable for mid-sized boats and equipment trailers. The rating reflects the coupler's material thickness and tested load capacity rather than vehicle towing limits, so pair it with an appropriately rated hitch and tow vehicle.

• 3,500 lb gross trailer weight rating for mid-sized loads
• Die-cut steel body provides structural strength
• Designed for 19 ft bow riders, sailboat trailers, and equipment haulers

What features make attaching and securing the trailer easier?

Attachment is simplified by a spring-loaded quick-release latch that locks firmly around a 2" hitch ball. The coupler also includes pre-drilled holes sized for a safety pin or coupler lock to add a secondary layer of security while towing or parked.

• Spring-loaded lever for fast, reliable latching and removal
• Pre-drilled safety holes accept standard pins or locks (sold separately)
• Consistent 2" ball size compatibility reduces setup time across trailers

How does the E-coated finish protect the coupler outdoors?

The electrophoretic E-coating offers uniform coverage that helps resist rust and abrasion compared with bare metal finishes. While not impervious to wear, the black E-coat extends service life and keeps the coupler looking clean when exposed to road salt, spray, or weather.

• Uniform black E-coating for corrosion resistance and appearance
• Helps protect welds and edges from early oxidation
• Matches black trailer frames for a cohesive look

Will this coupler fit my trailer tongue and hitch ball?

This model is made specifically for a straight 2" wide channel tongue and a standard 2" diameter hitch ball. Verify your trailer’s tongue width and that you use a 2" ball; mixing incompatible sizes can result in unsafe towing conditions.

• Compatible with 2" diameter hitch balls
• Designed for straight 2" channel tongues only
• Always confirm vehicle and hitch ratings match or exceed the coupler GTW

Who is this for: The NBJINGYI 2" straight trailer coupler is aimed at owners of mid-sized boat, utility, and equipment trailers who want a robust, easy-to-use connector that standardizes on a 2" ball. It’s a practical upgrade for farmers, contractors, marinas, and fleet operators seeking a dependable coupler with convenient safety-hole provisions and a corrosion-resistant finish.