Attwood Deck Fill Replacement Cap & Chain

The Attwood Deck Fill Replacement Cap & Chain is an essential component for maintaining the integrity of a vessel's fuel or water systems during demanding days on the water. Boaters often encounter lost or damaged caps during hurried refueling at the marina or during rough transitions, making a reliable replacement critical to prevent hazardous contamination. This specific cap ensures that your deck fills remain secure and protected against salt spray and rain, providing peace of mind for both offshore anglers and recreational cruisers. Having a functional seal is the first line of defense in keeping your fuel system free of debris and moisture.

Designed with a low-profile flush-mount configuration, this replacement cap features a slotted top that accommodates a standard deck fill key for secure opening and closing. The integrated O-ring creates a watertight seal once tightened, effectively blocking external moisture and environmental contaminants from entering the tank and causing engine performance issues. Additionally, the included chain prevents the cap from falling overboard or being misplaced while the fill port is in use. This design keeps your deck organized and ensures the hardware stays with the boat regardless of the conditions.

This Attwood Marine hardware is specifically engineered to fit existing Attwood deck fills, making it a direct-fit solution for those looking to buy a high-quality replacement without the need for modifying their current setup. Reviewing your boat’s hardware for wear, sun damage, or cracked seals is a vital part of seasonal maintenance to ensure safety on the water. These specifications meet the rigorous demands of marine environments, providing a professional-grade fit and finish for any boat. Whether you are performing a routine upgrade or replacing a weathered component, this cap offers the reliability required for long-term use.