CATEngine Parts

1W9812 Gear — Cat 120G 130G

This gear is a fundamental component within the transmission or drive train system, transmitting rotational force and modifying speed or torque between shafts. It is precision-machined from hardened steel to withstand high loads and wear, offering superior durability compared to a worn or chipped gear that can cause grinding noises and power loss. Operators may hear abnormal grinding or whining sounds from the transmission, experience difficulty shifting gears, or notice a loss of drive power when this gear begins to fail.

Gear – Part No 1W9812 – 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 drive train
Service LifeReplace as needed based on wear
CompatibilityCAT 120G, 130G, 140G, 160G, 1673C
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first indication of a failing gear is often an unusual noise, such as grinding, whining, or clunking, originating from the transmission or drive train. If ignored, this can lead to intermittent engagement issues, loss of power transmission, and accelerated wear on mating components. The ultimate consequence is transmission failure, resulting in complete loss of mobility for the equipment.

Installation Tip

Thoroughly clean the transmission housing and ensure all mating surfaces are free of old gear material or debris before installing the new gear. Carefully align the gear teeth with their mating components to prevent binding or damage during assembly.

Service Note

Inspect all associated bearings, shafts, and mating gears for wear or damage when replacing a transmission gear.