6F8815 - CLAMP Fits CaterpillarOne New Aftermarket Replacement Muffler Clamp (Pipe to Muffler) for Caterpillar (Cat) Construction Equipment This aftermarket replacement exhaust clamp secures the exhaust pipe to the muffler on a wide range of Caterpillar (Cat) construction machines and engines. Also known as a pipe to muffler clamp, it is a critical component of the exhaust system, preventing leaks and keeping the connection tight under high heat operating conditions. Specifications