CATEngine Parts

335-5734-335-5752 Fuel Injection Pump 335 5734 — Cat 3044C 256C

This fuel injection pump is a critical component of the Caterpillar engine's fuel system, responsible for delivering pressurized fuel to the injectors. It is built to precise specifications, ensuring consistent fuel delivery and optimal engine performance, unlike a worn or malfunctioning pump. Operators may experience hard starting, rough idling, reduced engine power, or stalling when this pump begins to fail.

Fuel Injection Pump 335 5734 – Part No 335-5734-335-5752 – 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
ApplicationFuel injection system
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms of a failing fuel injection pump include difficulty starting the engine or a noticeable lack of power. If ignored, the engine may stall unexpectedly or run very roughly, leading to inconsistent operation. Continued use risks severe engine damage due to fuel starvation or improper lubrication.

Installation Tip

Ensure the fuel system is properly bled of air after installation to prevent cavitation and ensure smooth operation. Do not reuse old fuel lines or fittings, as they may be brittle and prone to leaks.

Service Note

Replace the fuel filter and inspect all fuel lines and seals when installing a new fuel injection pump.