145558 O Ring Seal

145558 O ring seal is a universal circular sealing part for multiple Cummins engines including ISX12, ISX11.9, QSZ13, Z13, X15, M15, Z14 and Z15. Produced with high-performance fluororubber material, it shows excellent resistance to high temperature, lubricating oil and fuel corrosion. It maintains stable elasticity under repeated compression and thermal cycling to block liquid or gas leakage at assembly joints. Compact size for easy installation and replacement in engine overhaul. This durable O-ring prevents pressure loss and contamination, protecting hydraulic, fuel and lubrication systems for various Cummins heavy-duty power units.