Moroso Carburetor Cap - Holley 4150 - 5-1/8in Diameter Neck - High Impact Plastic

This is the Moroso Carburetor Cap, specifically made for Holley 4150 carburetors. It's designed to fit the standard 5-1/8 inch neck found on many performance carburetors, giving you a solid seal to keep dirt and debris out of your fuel system.

Crafted from high-impact plastic, this cap is built to withstand the vibrations and heat found in the engine bay. It's a straightforward replacement part that helps maintain the integrity of your carburetor's air intake. The material choice means it won't rust or corrode like some metal caps might, offering a long-lasting solution.