CATHydraulic Parts

7s9442 Gear Assem. (8 Teeth) — Cat 12F 140B

This 8-tooth gear assembly is a key component in the hydraulic pump or motor, responsible for meshing with another gear to generate fluid flow and pressure. Manufactured to meet rigorous standards, it offers superior durability and precise tooth engagement compared to a worn or chipped gear. Operators may observe a decrease in hydraulic system performance, unusual noises like whining or grinding, or a complete loss of hydraulic power when this gear fails.

Gear Assem. (8 Teeth) – Part No 7s9442 – CAT Spare Part
Part Specifications
BrandCAT
CategoryHydraulic 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

Flush hydraulic lines before fitting new components. Use only manufacturer-specified hydraulic fluid. Check O-rings and backup rings for correct orientation. Bleed air from system after installation.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeGear Assembly
MaterialHardened Steel
ApplicationHydraulic Pump/Motor
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing gear assembly is often a noticeable increase in hydraulic system noise, such as whining or grinding. If left unaddressed, this can lead to a gradual loss of hydraulic power and increased leakage. Continued operation risks severe damage to the hydraulic pump or motor housing and internal components.

Installation Tip

Carefully inspect the gear housing for any signs of scoring or wear before installing the new gear assembly. Ensure the gear meshes smoothly with its counterpart without binding.

Service Note

When replacing a hydraulic gear assembly, it is crucial to inspect the mating gear and the hydraulic pump/motor housing for wear or damage.