Caterpillar 4N9330 Heavy Duty Clamp Assembly Kit

Caterpillar 4N9330 Heavy Duty Clamp (Cat part 4N-9330) is a replacement exhaust muffler clamp designed to secure muffler assemblies on a wide range of CAT engines. This 6.40 mm thick muffler group clamp provides a robust, factory‑referenced interface for high‑vibration exhaust systems and is listed by Caterpillar as a muffler group clamp. Compatible with engine families including 3406E, 3408, 3412, 3456, 385C, 772B, 773B, 773D, 773E, 773F, and 773G, it helps maintain exhaust integrity by securing clamps and preventing leaks under demanding operating conditions. As a genuine Caterpillar replacement part, the 4N9330 is intended to match the original clamp’s mounting dimensions and fastener layout, ensuring proper fitment when performing maintenance or repairs on CAT equipment.