Exhaust Clamp fits Various Makes Models Listed Below CL-300One New Aftermarket Replacement Exhaust Muffler Clamp 3 1 4", 2 Bolt Heavy Duty for Agricultural Tractors This heavy duty 2 bolt muffler clamp is designed to securely connect exhaust pipes and mufflers on a wide range of agricultural tractors. The 3 1 4" (3. 25") diameter clamp provides a tight, leak resistant seal between exhaust components, preventing exhaust gas leaks and reducing vibration at the connection point. Specifications Pipe Diameter: 3 1