CATEngine Parts

1107231 Gear-Sun — Cat 320C 320D

This Gear-Sun is a critical component within the transmission or drive system, responsible for transmitting rotational force. Manufactured to high standards, it offers superior wear resistance and structural integrity compared to a worn or damaged gear. Operators may notice unusual noises from the drivetrain, difficulty shifting gears, or a loss of power when this part begins to fail.

Gear-Sun – Part No 1107231 – 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 TypeTransmission Gear
MaterialHardened steel alloy
ApplicationTransmission or drive system
Service LifeReplace when signs of wear or damage are evident
CompatibilityCTP aftermarket replacement for Caterpillar
ConditionNew — CTP aftermarket replacement

Failure Symptoms

Initial symptoms of a failing Gear-Sun include whining or grinding noises during operation, particularly when engaging or disengaging gears. If ignored, the gear teeth can wear down or break, leading to erratic shifting, loss of drive, and potential damage to other transmission components. Continued use risks significant drivetrain failure.

Installation Tip

Thoroughly clean the transmission housing and all mating surfaces before installation to prevent contamination. Ensure proper lubrication of the gear teeth and shaft during assembly to facilitate smooth operation and prevent initial wear.

Service Note

Inspect the entire planetary gear set, bearings, and seals for wear or damage when replacing a Gear-Sun.