Unbranded - 3C0400E - O-Ring Special Thermostat Housing 2.5 Large

The Caterpillar 3C0400E is a genuine OEM O-Ring specifically designed for various Caterpillar engines and machinery, commonly utilized in thermostat housing applications. This special O-Ring provides a critical seal within the cooling system, effectively preventing leaks and helping to maintain optimal engine operating temperatures. With an inside diameter of 63.5 mm and a cross-section diameter of 3.53 mm, it offers a precise and secure fit for compatible Caterpillar models, including a range of excavators, wheel loaders, and telehandlers equipped with 3054, 3056, C4.4, or C6.6 engines.