912004010102
Lock Washer
Detroit Diesel

The lock washer is a critical component used to prevent loosening of fasteners under vibration and dynamic loads. Its serrated or split design applies tension against the bolt or nut, creating a secure lock that resists back-off during operation. Proper selection and installation of this washer are vital for maintaining assembly integrity, especially in high-stress environments like engine and chassis assemblies. It helps sustain consistent clamping force, reducing the risk of component failure or disassembly. Made from durable materials, the lock washer withstands harsh conditions, including temperature fluctuations and chemical exposure. Using high-quality lock washers from Source One Parts Center ensures your heavy-duty assemblies remain tight and reliable over time, contributing to overall vehicle safety and performance.