3912473 O Ring Seal for Cummins 4B3.9 6B5.9 C8.3 ISC QSC ISL QSL,The 3912473 O ring seal is a multi-model universal sealing accessory covering Cummins 4B3.9, 6B5.9, C8.3, ISC, QSC, ISL and QSL engines. Made of high-elasticity fluororubber material, it has outstanding high-temperature resistance, oil resistance and aging resistance. It is widely used in engine pipeline joints and assembly gaps to achieve precise sealing, effectively preventing fluid leakage and pressure loss. With stable elasticity and long service life, it adapts to various engine working conditions and ensures the tightness and normal operation of multiple system pipelines.
