A9902030100
Thermostat Cap
Detroit Diesel

The cap serves as a crucial sealing component for the thermostat housing or other cooling system parts, preventing leaks and contamination. Its design ensures a tight fit, maintaining system integrity under high pressure and temperature fluctuations typical in heavy-duty engines. The cap's secure closure helps retain coolant within the system, supporting consistent temperature regulation and preventing air ingress that could impair cooling efficiency. Made from durable materials, it withstands thermal cycling and chemical exposure, contributing to long-term reliability. Properly sealing the system with this cap ensures optimal engine performance and reduces the risk of overheating or coolant loss. When acquired from Source One Parts Center, it offers peace of mind regarding quality and fit, making it a dependable choice for engine maintenance or overhaul projects.