178937 O-Ring Seal
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178937 Cummins O-Ring Seal
- Primary Application : Primarily used in non-certified 14-liter Cummins 855 (NH/NT855) engine series, as well as various upper/lower engine gasket sets, exhaust manifold connections, oil/coolant lines, and cooling systems.
- Function : Compresses within static circular grooves to block the escape of high-pressure fluids, engine oil, coolant, or gases.
- Material & Build : Made from high-grade elastomer engineered to withstand heat, oil exposure, high pressures, and thermal expansion common in commercial truck and industrial diesel applications.
The Cummins 178937 O-ring seal is an OEM mechanical gasket designed to provide a tight, leak-proof seal between mating surfaces in heavy-duty diesel engines.
It serves as a critical replacement part during engine rebuilds or routine maintenance to prevent fluid leaks and maintain optimal operating pressure.
- Product reference
- 178937
Ordering & compatibility
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