CATEngine Parts

319-0680 Hydraulic Unit Injector Pump — Cat

This is a Hydraulic Unit Injector Pump, a critical component of the engine's fuel system that precisely meters and injects fuel into the combustion chamber. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to worn units exhibiting inconsistent fuel delivery. Symptoms of a failing pump include rough idling, loss of engine power, and increased exhaust smoke.

Hydraulic Unit Injector Pump – Part No 319-0680 – 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 TypeHydraulic Unit Injector Pump
MaterialHardened steel alloy
ApplicationEngine fuel injection system
Service LifeReplace based on performance degradation or diagnostic codes
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An initial sign of a failing Hydraulic Unit Injector Pump is a noticeable decrease in engine power or responsiveness. If left unaddressed, the engine may begin to misfire, run rough, and consume more fuel. Continued operation with a faulty pump can lead to uneven cylinder operation and potential internal engine damage.

Installation Tip

Ensure the engine's fuel system is thoroughly purged of air before installation to prevent initial starting issues. Avoid overtightening the pump mounting bolts, as this can damage the pump housing or the engine block.

Service Note

Always replace the fuel filter when servicing the Hydraulic Unit Injector Pump to prevent contamination of the new component.