CATEngine Parts

317-8021-291-5919 Fuel Injection Pump — Cat 320D

This fuel injection pump is a core engine component responsible for delivering precisely metered and pressurized fuel to the engine cylinders for combustion. Manufactured to meet stringent OEM quality specifications, it ensures accurate fuel delivery and atomization, unlike a worn pump that can cause inconsistent performance. Operators may experience a noticeable loss of engine power, rough idling, increased exhaust smoke, or starting difficulties if this pump is malfunctioning.

Fuel Injection Pump – Part No 317-8021-291-5919 – 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
MaterialSteel Alloy, Seals
ApplicationFuel Delivery System
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing fuel injection pump can include a gradual reduction in engine power or an increase in fuel consumption. The problem may progress to rough engine operation, excessive black smoke from the exhaust, or difficulty in starting the engine, especially when cold. Continued use with a faulty pump can lead to incomplete combustion and potential damage to other engine components.

Installation Tip

Thoroughly flush the fuel system lines before installing the new pump to remove any debris that could cause immediate damage. Avoid rotating the engine crankshaft while the pump is removed, as this can disrupt the timing sequence.

Service Note

When replacing the fuel injection pump, it is recommended to replace the fuel filters and inspect the fuel injectors for proper operation.