CATEngine Parts

379-0803 Governor Motor Assembly — Cat 303 304E

This governor motor assembly precisely regulates engine speed by controlling fuel delivery, ensuring stable operation under varying load conditions. It is built to meet stringent OEM quality standards for reliable and responsive performance, unlike a worn unit that may cause erratic engine RPM. Observable symptoms of failure include unstable idle speed, difficulty maintaining set RPM, or the engine shutting down unexpectedly.

Governor Motor Assembly – Part No 379-0803 – 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 TypeGovernor Motor Assembly
MaterialMetal and plastic components
ApplicationEngine speed regulation
Service LifeReplace based on diagnostic indicators or engine performance issues
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing governor motor assembly may first manifest as an unstable or fluctuating engine idle speed. If the issue persists, the engine may struggle to maintain its set RPM under load or exhibit jerky acceleration. Continued operation without addressing this can lead to unpredictable engine behavior and potential stalling during critical operations.

Installation Tip

Ensure the electrical connector is clean and securely seated to prevent intermittent signal loss. Avoid forcing the assembly during installation; it should fit smoothly into its mounting location.

Service Note

Inspect the throttle linkage, fuel system, and engine speed sensors for proper function when replacing the governor motor assembly.