CATEngine Parts

304-0677 High Pressure Oil Pump — Cat

This high-pressure oil pump is a critical component of the engine's lubrication system, responsible for delivering pressurized oil to all moving parts. It is manufactured to meet stringent OEM quality standards, ensuring superior durability and performance compared to a worn pump that may exhibit reduced oil flow or internal leakage. Operators may notice a significant drop in oil pressure readings, increased engine noise due to inadequate lubrication, or the illumination of the oil pressure warning light.

High Pressure Oil Pump – Part No 304-0677 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeHigh Pressure Oil Pump
MaterialHardened Steel Alloy
ApplicationEngine Lubrication System
Service LifeReplace based on inspection or performance degradation
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing high-pressure oil pump may initially present as intermittent low oil pressure warnings during high engine load conditions. If ignored, the pump's inability to maintain adequate pressure will lead to increased wear on engine bearings and camshafts, potentially causing significant internal engine damage.

Installation Tip

Ensure the oil pickup tube is properly seated and sealed before installing the pump to prevent air ingress into the lubrication system. Avoid overtightening the mounting bolts, as this can distort the pump housing and lead to premature failure.

Service Note

Inspect the engine oil pan for metal shavings and clean the oil pickup screen thoroughly when replacing the high-pressure oil pump.