CATEngine Parts

132-7778 Throttle Motor Governor Assy — Cat 325B 330B

This is a throttle motor governor assembly, a critical component of the engine's fuel control system responsible for regulating engine speed. It is built to meet rigorous performance standards, offering reliable operation and precise throttle response unlike a worn or malfunctioning unit. Operators may experience erratic engine idling, loss of power, or difficulty maintaining set speeds when this assembly fails.

Throttle Motor Governor Assy – Part No 132-7778 – 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 TypeThrottle Motor Governor Assembly
MaterialSteel, aluminum, electronic components
ApplicationEngine fuel control system
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing throttle motor governor assembly can first manifest as unstable engine idling or inconsistent throttle response. If ignored, the engine may exhibit significant power loss during operation or fail to reach desired speeds. The ultimate consequence is the inability to control engine RPM effectively, potentially leading to operational downtime.

Installation Tip

Before removing the old unit, carefully note the position of any linkage or electrical connectors to ensure correct reassembly. Avoid forcing electrical connectors, as this can damage the pins or the housing.

Service Note

Inspect the engine's wiring harness and throttle linkage for wear or damage when replacing the governor assembly.