Excavator CAT E336GC E340GC E345GC E336D2 Travel Motor Final Drive Assembly 511-0315 568-9405 574-3203 591-8316

The CAT E336GC final drive assembly, also known as the travel motor assembly, integrates a hydraulic travel motor and a planetary reduction gearbox into a single unit. It is the core chassis hydraulic component that delivers travel power to the CAT E336GC large excavator.

This assembly is compatible with the E336GC, E340GC, E345GC, and E336D2 excavator models, and is identified by part numbers 511-0315, 568-9405, 574-3203, and 591-8316.

High-pressure hydraulic oil from the main pump drives the motor rotor. Torque is amplified through multi-stage planetary gear reduction to drive the track. The assembly features a built-in parking brake that locks automatically when the machine stops, preventing sliding on slopes.

• High torque output for heavy-load mining and earthmoving applications
• Built-in wet multi-disc parking brake for stable and reliable braking
• Heavy-duty housing with strong impact resistance for harsh site conditions
• Electronically controlled hydraulic design with smooth travelling and high/low speed shift (high speed for relocation, low speed for heavy load)

• Oil seal leakage — Oil seepage on housing, hydraulic oil loss
• Worn or broken planetary gears — Abnormal noise, weak one-side travel, track deviation
• Worn brake friction plates — Machine sliding on slope, brake failure
• Worn motor piston or valve plate — Insufficient travel power, slow movement
• Housing crack caused by overload