CATEngine Parts

127-3312 Fuel Injector — Cat 3504 M312

This is a high-pressure fuel injector, precisely calibrated to deliver the correct amount of fuel into the engine's combustion chamber at the optimal time. Manufactured to meet rigorous OEM standards, it ensures efficient fuel atomization and combustion, unlike a worn injector that may leak or spray erratically. Operators might observe rough engine running, a loss of power, or increased black smoke from the exhaust when this part begins to fail.

Fuel Injector – Part No 127-3312 – 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 Injector
MaterialHardened steel alloy
ApplicationEngine fuel injection system
Service LifeReplace every 4,000-6,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing fuel injector include uneven engine idle, reduced throttle response, and a slight increase in fuel consumption. If ignored, the injector may begin to leak fuel, leading to increased exhaust emissions and potential engine overheating. Continued operation risks severe engine damage due to improper combustion.

Installation Tip

Ensure the injector seat in the cylinder head is perfectly clean and free from carbon deposits before installing the new injector. Do not overtighten the injector hold-down clamp, as this can distort the injector body.

Service Note

Inspect the fuel filter and fuel lines for contamination when replacing a fuel injector.