Whitecap Replacement Cap & Chain f/6123, 6123, 6125 & 6126

The Whitecap Replacement Cap & Chain for models 6123, 6125, and 6126 is an essential maintenance part for any boater serious about protecting their vessel's deck hardware. After years on the water, I've learned that fuel fill and water tank caps take a beating from sun, salt spray, and constant use—this replacement cap ensures your tanks stay sealed and secure. Whether you're running a fishing charter, cruising inland lakes, or anchoring offshore, a compromised cap can lead to spillage, contamination, or water infiltration that damages expensive onboard systems.

This replacement cap features a durable, UV-resistant design that helps protect against harsh marine conditions. The included chain secures the cap to your tank opening, preventing loss overboard and eliminating the frustration of fumbling in rough seas or losing it during refueling operations. Whitecap hardware is engineered for reliability in harsh marine environments, resisting corrosion and maintaining a tight seal across temperature swings and extended storage periods.

This cap is the direct fit replacement for Whitecap models 6123, 6125, and 6126 tank assemblies, ensuring compatibility if you have one of these original fittings on your boat. Whether you need a spare for fuel, freshwater, or greywater tanks, keeping a replacement on hand prevents downtime and enhances your boating experience. Its compact design weighs just 0.2 pounds, making it an easy stowage item for any boat's spares kit.