CATEngine Parts

1252951 Gear — Cat 311 311B

This gear is a critical component within the power train or transmission system, responsible for transmitting rotational force and changing speed or torque. Manufactured to precise specifications, it ensures smooth engagement and durable operation, unlike a worn or damaged gear with chipped teeth or excessive play. Operators may notice increased gear noise, difficulty shifting, or a loss of power transmission as symptoms of a failing gear.

Gear – Part No 1252951 – 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 TypeGear
MaterialHardened steel
ApplicationTransmission or power train
Service LifeReplace as needed based on inspection
CompatibilityCTP aftermarket replacement
ConditionNew — CTP aftermarket

Failure Symptoms

Increased whining or grinding noises during operation, particularly when under load, and difficulty engaging or disengaging gears are common signs of gear wear. If ignored, the gear teeth can break, leading to a complete loss of power transmission and potential damage to other transmission components.

Installation Tip

Carefully inspect the mating gear for wear or damage before installing the new gear to ensure proper meshing and prevent premature wear. Avoid forcing the gear onto its shaft; it should seat smoothly with appropriate alignment.

Service Note

Inspect the transmission oil for metal particles and check all mating gears for wear.