CATEngine Parts

7N3515 Gear (80 Teeth) — Cat 3306

This 80-tooth gear is a precision-engineered component within the engine's or drivetrain's mechanical system, designed for reliable power transmission through meshing with other gears. Manufactured to high-durability standards, it ensures smooth and efficient operation compared to a worn or damaged gear with chipped or rounded teeth. Observable signs of failure include excessive gear noise (whining, grinding), vibration, or a complete loss of power transmission if teeth are broken.

Gear (80 Teeth) – Part No 7N3515 – 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
ApplicationPower transmission system
Service LifeReplace as needed based on wear
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The first symptom of a failing gear is typically an increase in operational noise, such as whining or grinding sounds. If the issue progresses, you may experience noticeable vibration during operation or intermittent power loss. A severely damaged gear can lead to a complete failure of the power transmission system, resulting in immobilization of the equipment.

Installation Tip

Thoroughly clean the gear housing and ensure all old lubricant and debris are removed before installing the new gear. Avoid forcing the gear onto the shaft; it should fit snugly but without excessive force.

Service Note

Inspect the condition of the mating gear, bearings, and seals within the gearbox or transmission when replacing this gear.