CATEngine Parts

305-5953 Throttle Governor Accelerator Motor — Cat 307D 4M40

This is a throttle governor accelerator motor that precisely controls engine speed by adjusting fuel delivery based on operator input or load demand. It ensures smooth acceleration and maintains optimal engine performance under varying conditions, preventing erratic engine RPMs. A malfunctioning motor can result in jerky throttle response, inability to reach full power, or engine stalling.

Throttle Governor Accelerator Motor – Part No 305-5953 – 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 Governor Accelerator Motor
MaterialMetal and electronic components
ApplicationEngine speed control system
Service LifeReplace every 4,000 hours or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial sign of a failing throttle motor may be a sluggish or inconsistent throttle response, where engine RPMs do not immediately match pedal input. If ignored, the engine may struggle to maintain idle speed, hesitate during acceleration, or fail to reach full power, significantly reducing operational efficiency. The worst consequence is the potential for the engine to stall unexpectedly during operation, creating a safety hazard.

Installation Tip

Ensure the engine is shut off and the battery is disconnected before removing the old motor to prevent electrical shorts. Do not force the new motor into place; it should align smoothly with the throttle linkage.

Service Note

Inspect the throttle linkage for wear or binding, and check the condition of the accelerator pedal position sensor when replacing the throttle governor motor.