CATTransmission Parts

320-8606 Planetary Gear — Cat

This planetary gear is a crucial component within the final drive or transmission, responsible for reducing speed and increasing torque through its gear reduction stages. It is manufactured to meet stringent OEM quality standards, providing robust performance and longevity compared to worn or damaged gears. Operators may experience a loss of drive power, unusual noises from the drivetrain, or difficulty in moving the equipment when this gear fails.

Planetary Gear – Part No 320-8606 – 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 TypePlanetary Gear
MaterialHardened steel
ApplicationFinal drive or transmission system
Service LifeReplace as needed based on inspection and wear
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing planetary gear may include grinding noises during operation or a noticeable reduction in torque. If the issue progresses, the gear teeth can break, leading to a complete loss of drive power to the affected axle or track. Continued operation with a damaged gear can cause extensive damage to other drivetrain components.

Installation Tip

Ensure all mating surfaces and gear teeth are clean and free of debris before assembly. Proper lubrication is critical; do not install dry gears.

Service Note

When replacing a planetary gear, inspect the entire gear set, bearings, and seals within the housing for wear or damage.