CATEngine Parts

116-8866 Fuel Injector — Cat C10 C12

This fuel injector is a precision component responsible for delivering a finely atomized spray of diesel fuel into the combustion chamber at the precise moment required for efficient engine operation. It is engineered to meet strict OEM flow rate and spray pattern specifications, ensuring optimal fuel economy and power output compared to a worn injector. Symptoms of a failing injector can include rough idling, reduced engine power, increased exhaust smoke, and a noticeable drop in fuel efficiency.

Fuel Injector – Part No 116-8866 – 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, precision-machined components
ApplicationDiesel fuel injection system
Service LifeReplace based on performance and inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing fuel injector may initially cause noticeable rough idling or a slight loss of engine power. If ignored, this can lead to increased fuel consumption, excessive black smoke from the exhaust, and potential damage to other engine components due to incomplete combustion.

Installation Tip

Always ensure the fuel system is properly bled of air after installing new injectors to prevent starting issues. Avoid overtightening the injector hold-down clamp, as this can damage the injector body or the cylinder head.

Service Note

When replacing fuel injectors, it is highly recommended to also inspect or replace the fuel filter and check the fuel lines for any signs of leaks or damage.