CATEngine Parts

1275970 Gear-Planet — Cat 320C 320D

This planet gear is a vital component within the final drive or transmission system, transmitting rotational force to propel the machine. Manufactured to precise specifications, it ensures smooth power transfer and durability under heavy loads, unlike worn gears that exhibit chipped teeth or excessive play. Operators might experience a loss of drive power, grinding noises from the drivetrain, or jerky movement when this gear begins to fail.

Gear-Planet – Part No 1275970 – 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 TypePlanet Gear
MaterialHardened steel
ApplicationFinal drive or transmission
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A failing planet gear may initially cause a subtle increase in drivetrain noise or a slight hesitation during acceleration. If the wear progresses, the noise will become more pronounced, and the machine may exhibit intermittent loss of power or difficulty maintaining speed under load. Continued operation with a damaged gear can lead to more extensive drivetrain damage.

Installation Tip

Ensure the gear teeth are properly meshed with adjacent gears and that the gear rotates freely without binding. Do not reuse old fasteners; always use new hardware as specified for the assembly.

Service Note

Inspect the entire final drive or transmission gear set, bearings, and seals for wear and damage when replacing a planet gear.