Ronstan Transom Gudgeon - 6.4mm (1/4") Pin/Hole

The Ronstan Transom Gudgeon with 6.4mm (1/4") pin/hole is a critical hardware component for outboard motor and auxiliary engine mounting on boat transoms. Built for vessels ranging from small center consoles to mid-sized recreational boats, this gudgeon serves as the lower mounting bracket that accepts the pintle (the corresponding male hinge pin) on your motor's transom bracket assembly. If you've spent years on the water, you know that transom hardware endures constant exposure to salt spray, freshwater cycling, and the tremendous forces generated by engine thrust and sea state—making quality and corrosion resistance non-negotiable.

Ronstan's engineering ensures this transom gudgeon is forged from marine-grade stainless steel, resisting rust and degradation even in harsh saltwater environments where galvanized or standard steel hardware fails within seasons. The 6.4mm pin hole is precisely machined to accept standard 1/4-inch diameter pintles, providing a tight, rattle-free fit that maintains alignment under load. The gudgeon's compact 2-inch body integrates seamlessly with most modern transom bracket systems, and its minimal weight (0.1 lbs) means no added burden to your boat's stern while delivering full-strength load transfer from the engine to the transom structure.

This component is essential for anglers, cruisers, and commercial operators who rely on auxiliary power or need reliable motor tilt-and-trim operation throughout the boating season. Whether you're replacing worn hardware on a 20-year-old classic or upgrading from corroded originals, verify your transom bracket's pintle diameter before ordering—the 1/4-inch specification must match exactly for safe installation. Ronstan gudegeaons pair with compatible pintles (sold separately) to restore or upgrade your motor mounting system with confidence and longevity that extends far beyond your next fishing trip.