QC002193
Timing Gear Case
Mitsubishi FUSO®

The Timing Gear Case, also known as the Timing Cover, is a vital component of a commercial truck's engine. It is responsible for protecting the timing gears and chain from external contaminants, such as dirt and debris, while also keeping the engine oil contained within the engine block. The Timing Gear Case is typically made of aluminum or cast iron and is bolted onto the front of the engine block. In addition to its protective role, the Timing Gear Case also houses the timing chain and gears, which are responsible for synchronizing the rotation of the crankshaft and camshaft. This synchronization is critical for proper engine function, as it ensures that the engine's valves open and close at the correct time. Without the Timing Gear Case, the timing chain and gears would be exposed to external contaminants, leading to premature wear and potential engine failure.