CATEngine Parts

149-5459 Fuel Injection Pump — Cat 3054 TH103

This fuel injection pump is a critical component responsible for delivering pressurized fuel to the engine's injectors at the precise moment for combustion. It is engineered to meet strict OEM performance specifications, ensuring accurate fuel metering and optimal engine efficiency, unlike a worn pump that can cause misfires and poor performance. Operators may experience rough idling, loss of engine power, increased fuel consumption, or difficulty starting the engine when this fuel injection pump fails.

Fuel Injection Pump – Part No 149-5459 – 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, high-pressure seals
ApplicationEngine fuel delivery system
Service LifeReplace as needed based on performance issues or mileage
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing fuel injection pump often include a noticeable loss of engine power, especially under load, and increased black smoke from the exhaust. If the issue progresses, the engine may start to idle roughly or stall intermittently. Continued operation with a faulty pump can lead to incomplete combustion, potential engine damage, and reduced fuel efficiency.

Installation Tip

Ensure the fuel system is thoroughly purged of air after installing the new pump, following the manufacturer's recommended procedure. Do not rotate the engine crankshaft backwards while installing the pump, as this can misalign timing marks.

Service Note

Always replace the fuel filters and inspect the fuel lines for any debris or damage when installing a new fuel injection pump.