CATTransmission Parts

381-3144 Travel Gearbox With Motor — Cat 301

This travel gearbox with motor is an integral part of the undercarriage system, providing the necessary power and control for machine movement. Manufactured to meet robust OEM standards, it ensures reliable and precise locomotion compared to worn units that may suffer from internal gear damage or motor seal leaks. Operators might experience slow or erratic track movement, a loss of power to one or both tracks, or unusual noises from the drive system when this component fails.

Travel Gearbox With Motor – Part No 381-3144 – 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
MaterialHardened steel gears, aluminum housing, electric motor
ApplicationUndercarriage drive system
Service LifeReplace when wear or damage is detected during inspection or performance issues arise
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing travel gearbox might be a noticeable decrease in travel speed or a slight grinding noise when operating the tracks. If left unaddressed, the affected track may become sluggish or stop moving altogether, potentially leaving the machine immobile. Continued operation can lead to significant damage to the gears and motor, requiring a complete replacement.

Installation Tip

Ensure the mounting surfaces are clean and free of debris before installation to prevent leaks. Properly align the gearbox shaft with the drive sprocket to avoid stressing the components.

Service Note

Inspect the drive sprocket, track chain, and hydraulic lines for wear or damage when replacing the travel gearbox.