1-7/8" Ball Straight Trailer Coupler

Stegewop's 1-7/8" Ball Straight Trailer Coupler is a bolt-on, Class I coupler built for 2,000 lb gross trailer weight on 2-1/2" channel tongues.

This straight tongue coupler is engineered for light-duty towing applications such as utility, small boat, and light equipment trailers. It fits a standard 1-7/8 inch hitch ball and mounts to a 2-1/2 inch trailer tongue channel using pre-drilled holes, delivering a no-fuss installation and a secure connection. A zinc-plated, punched-steel body and a spring-actuated latch provide weather resistance and reliable engagement for everyday towing needs.

How does this coupler keep my trailer securely attached?

The coupler uses a trigger-style latch with a spring that holds the locking lever engaged over the hitch ball. This mechanism reduces the chance of accidental release and offers a consistent, repeatable connection every time you hitch. The internal adjustable nut lets you fine-tune how tightly the coupler grips the ball to minimize play.

• Trigger-style spring latch for consistent hookups
• Adjustable internal nut to remove ball play and rattling
• Latch hole accepts safety pin or coupler lock (sold separately)

Will this mount to my trailer tongue and how hard is installation?

Installation is straightforward: the coupler bolts directly onto a 2-1/2 inch wide straight channel tongue using the pre-drilled mounting holes. No welding is required; simply align the holes, select appropriate grade bolts and fasteners, and torque to secure. The design suits common light trailer tongues for a clean retrofit or new build.

• Pre-drilled holes sized for bolt-on mounting to 2-1/2" channel
• Works with standard straight tongue trailer designs
• Bolt and hardware selection depends on your trailer’s specifications

Is this coupler durable enough for outdoor and marine use?

The coupler is formed from punched high-strength steel and finished with a zinc plating that helps resist corrosion from water, road salt, and general exposure. While not a stainless-steel assembly, the protective finish extends service life in wet conditions when maintained properly. Regular cleaning and inspection will help preserve the coating and moving parts.

• Zinc-plated finish for corrosion resistance
• Punched steel construction for strength with reduced weight
• Recommended: rinse after saltwater exposure and lubricate moving parts

What towing capacity and hitch size does this support?

This is a Class I straight coupler designed around a 1-7/8 inch hitch ball and rated for trailers with a Gross Trailer Weight (GTW) up to 2,000 pounds. That makes it suitable for small utility trailers, personal watercraft trailers, and other light loads. Always verify your vehicle, ball mount, and trailer ratings match or exceed these values for safe towing.

• Fits 1-7/8" hitch ball standard size
• Rated for up to 2,000 lb gross trailer weight (Class I)
• Match with appropriately rated ball mount and tow vehicle

Who is this for: This Stegewop coupler is intended for owners of small trailers who need a reliable, easy-to-install hitching solution. It’s a good choice for DIY trailer builders, boat owners with light trailers, landscapers with utility trailers, and anyone replacing a worn Class I coupler. Choose this product when you want a straightforward bolt-on part that balances corrosion protection, secure latching, and the standard 1-7/8" hitch compatibility for everyday light towing.