CATEngine Parts

1912684 Gear-Planet — Cat 320C 320D

This Gear-Planet is a critical component within the final drive or transmission system, transferring rotational power between gears to enable movement. Manufactured with high-grade steel and precision-machined teeth, it ensures smooth and efficient power transfer, unlike a worn gear with chipped or rounded teeth that can cause grinding noises. Operators may experience abnormal noises, jerky movements, or a loss of drive power when this gear fails.

Gear-Planet – Part No 1912684 – 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 alloy
ApplicationFinal drive or transmission system
Service LifeReplace as needed based on inspection for wear and damage
CompatibilityCaterpillar 320C, 320D, 323D, 325D, 329E
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first symptom of a failing planet gear is typically an audible grinding or whining noise during operation, especially when turning or under load. If ignored, the gear teeth can chip or break further, leading to jerky movements and a significant loss of drive power. The worst-case scenario is complete failure of the final drive or transmission, immobilizing the equipment.

Installation Tip

Thoroughly clean the gear housing and inspect all mating surfaces for any burrs or damage before installing the new gear. Ensure proper lubrication is applied to all gear teeth and bearing surfaces during assembly.

Service Note

Inspect all bearings, seals, and other gears within the planetary gear set for wear or damage when replacing a planet gear.