CATEngine Parts

122-9007 Fuel Injector — Cat 3412

This fuel injector is a vital component of the Caterpillar engine's fuel delivery system, precisely metering and atomizing fuel for combustion. Manufactured to exacting standards, it ensures optimal fuel economy and power output, performing better than a worn or clogged injector. Operators may notice rough idling, reduced engine power, increased exhaust smoke, or difficulty starting the engine when this part begins to fail.

Fuel Injector – Part No 122-9007 – 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
ApplicationFuel injection system
Service LifeReplace every 2,000-4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing fuel injector is often an uneven engine idle or a noticeable loss of power. If ignored, fuel economy will degrade, and exhaust emissions will increase, potentially leading to engine misfires. Continued operation risks cylinder damage due to improper fuel delivery.

Installation Tip

Ensure the injector seat in the cylinder head is perfectly clean and free of carbon buildup before installing the new injector. Avoid rotating the injector while tightening the hold-down clamp, as this can damage the nozzle.

Service Note

Always replace the fuel filter when servicing fuel injectors.