CATTransmission Parts

381-3039 Travel Gearbox With Motor — Cat Excavator 301 4C

This travel gearbox with motor is an integrated unit designed to provide powered rotation to the machine's tracks, enabling movement and steering. Manufactured to meet precise OEM specifications, it ensures consistent performance and durability, unlike a worn unit that might exhibit leaks or inconsistent power delivery. Operators may experience a loss of track drive, jerky or uncontrolled movement, or a complete inability to propel the machine when this assembly fails.

Travel Gearbox With Motor – Part No 381-3039 – CAT Spare Part
Part Specifications
BrandCAT
CategoryTransmission 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

Drain and replace transmission fluid when servicing internal components. Use correct ATF specification. Pre-fill torque converters with fluid before installation. Allow 10 minutes for fluid to settle before checking level.

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
MaterialSteel alloy, cast iron
ApplicationUndercarriage drive system
Service LifeReplace as needed based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing travel gearbox with motor include unusual noises like grinding or whining during travel operations. This can escalate to intermittent loss of drive power, jerky or unpredictable track movement, and potential hydraulic fluid leaks. Continued operation risks complete loss of mobility and potential damage to the drive sprocket and track components.

Installation Tip

Ensure the hydraulic system is thoroughly flushed before installation to remove any contaminants that could damage the new motor. Always use new seals and O-rings to prevent leaks.

Service Note

Inspect the drive shaft, hydraulic lines, and track components for wear or damage during the gearbox replacement.