Fulton Performance Couplers/Pins & Accessories

Fulton Performance: Trusted Coupler Hardware Built for Real-World Trailering

When it comes to the critical connection point between your tow vehicle and trailer, the hardware you choose matters enormously. Fulton Performance has spent over a century engineering trailer components that perform in the most demanding conditions — and nowhere is that commitment more evident than in their lineup of couplers, pins, and accessories.

With more than 100 years of performance behind them, the Fulton line of trailer jacks, winches, and couplers has become the industry standard for light and medium-duty trailering. That legacy carries directly into their coupler hardware, where precision fit and reliable latching are non-negotiable.

The Fas-Lok Legacy

At the heart of Fulton's coupler lineup is a mechanism they pioneered themselves. The most popular coupler mechanism ever developed, the Fas-Lok originated as a Fulton brand and is offered in a full line of SAE Class I through IV rated straight tongue stamped couplers. The Fas-Lok latching mechanism allows quick and easy trailer hook-up, and is factory adjusted for convenience. This means less fussing at the hitch and more time on the water or road.

The Fas-Lok A-Frame coupler fits 50-degree angle trailer tongues, with a proven locking lever that hooks up quickly to the tow vehicle and a heavy-duty safety latch designed to prevent accidental uncoupling.

Pins, Safety Hardware & Replacement Accessories

Beyond couplers themselves, Fulton supplies the critical pins and accessories that keep your coupler system complete and functioning safely. Replacement pivot pins are available for Fulton's fold-away trailer coupler hinge kits, and include a cotter pin and lanyard. These small-but-essential parts are the kind of components that are easy to overlook until something goes wrong — and Fulton makes sure they're available when you need them.

Safety trigger latches on Fulton couplers accept a coupler pin or padlock, and the designs meet SAE J684 and VESC V-5 safety standards. This adherence to industry safety standards reflects Fulton's overall engineering philosophy: build it right, build it to spec.

Engineered for the Elements

Fulton products are engineered to withstand the demanding conditions of trailering, including repetitive loading, vibration, and exposure to moisture and road-borne elements. For marine applications specifically, premium zinc finishes with 600-hour salt spray ratings make these components ideal for trailers used near saltwater. Suited for all environments, Fulton performs best when the weather is at its worst — and when innovative design is combined with quality and value, the result is a brand that is the obvious choice for recreational and marine applications.

Why Fulton Coupler Hardware Stands Out

• Industry-originating design: The Fas-Lok mechanism was invented by Fulton and remains a benchmark in the category.
• Safety standards compliance: Couplers and accessories meet SAE J684 and VESC V-5 specifications.
• Complete system support: From primary couplers to replacement pivot pins, cotter pins, and lanyards, Fulton covers the full hardware chain.
• Corrosion resistance: Zinc plating and marine-grade finishes protect against saltwater and road exposure.
• Broad compatibility: A-frame, straight tongue, fold-away, and gooseneck configurations ensure a fit for most trailer types.

Whether you're restoring a worn fold-away tongue hinge with a Fulton replacement pivot pin or upgrading an entire coupler assembly for a boat trailer, these coupler and pin accessories deliver the reliability and safety that serious trailering demands.