CATEngine Parts

20r-1635 Fuel Injection Pump — Cat 325D

This is a high-pressure fuel injection pump, a critical component of the engine's fuel system responsible for delivering precisely metered fuel to the cylinders. Manufactured to meet OEM specifications, it ensures optimal combustion efficiency and power output, unlike a worn pump that may exhibit internal leakage or incorrect timing. Operators might observe a significant loss of engine power, rough idling, increased exhaust smoke, or difficulty starting the engine when this pump is failing.

Fuel Injection Pump – Part No 20r-1635 – 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 TypeFuel Injection Pump
MaterialHardened Steel and Brass
ApplicationEngine Fuel System
Service LifeReplace based on performance degradation or mileage
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early symptoms include a noticeable reduction in engine power and increased black smoke from the exhaust. If left unaddressed, the engine may begin to misfire, idle roughly, and eventually fail to start. Continued operation risks severe engine damage due to incomplete combustion and fuel starvation.

Installation Tip

Ensure all fuel lines are meticulously cleaned before connecting them to the new pump to prevent any debris from entering the system. Do not overtighten the fuel line fittings, as this can damage the pump's ports.

Service Note

Replace the primary and secondary fuel filters and perform a thorough fuel system bleed procedure when installing a new fuel injection pump.