CATEngine Parts

353-0609 Travel Gearbox With Motor — Cat 320D 325D

This travel gearbox with motor is a crucial component for the undercarriage drive system, enabling the machine to move. It is engineered to meet high durability standards, providing reliable torque transfer and precise control compared to a worn or leaking unit. Operators may experience sluggish movement, grinding noises during travel, or a complete loss of drive power when this assembly fails.

Travel Gearbox With Motor – Part No 353-0609 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeTravel Gearbox with Motor
MaterialHardened steel and cast iron
ApplicationUndercarriage drive system
Service LifeReplace based on inspection or performance issues
CompatibilityCAT C4.2, C6.4, C4.4, C7 engines
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing travel gearbox include a noticeable reduction in travel speed or hesitation when changing direction. If ignored, the unit may start to make loud grinding noises, and power to the tracks can become intermittent. Continued operation risks complete loss of mobility, leaving the equipment stranded and unable to perform its work.

Installation Tip

Ensure the hydraulic system is properly bled of air after installation to prevent cavitation and ensure smooth operation. Verify the correct hydraulic fluid type and level are used.

Service Note

Inspect the final drive oil level and condition, and check the drive sprocket and track components for wear during replacement.