A0239977748
Valve Seal and O-Ring for Transmission Case
Detroit Diesel

This sealing ring is a vital component within the transmission case, designed specifically to prevent fluid leaks and contamination. Made from fluorocarbon elastomer, it offers excellent chemical and temperature resistance, ensuring long-term sealing integrity. Its dimensions—inner diameter of 13.10 mm, outer diameter of 17.10 mm, and a 2 mm cross-section—are precisely engineered for a secure fit in valve locations within the transmission. Proper sealing of these valves is essential for transmission performance, fluid pressure maintenance, and preventing dirt ingress that could cause internal damage. The use of high-grade elastomer material guarantees durability even under the high-pressure and temperature fluctuations typical of transmission operations. Source One Parts Center provides this component as a reliable replacement part to support transmission health, emphasizing quality and precision for heavy-duty truck maintenance.