CATEngine Parts

222-5963-10r-1262 Fuel Injector — Cat Engine 3126 3126B 3126E

This is a high-pressure fuel injector for the engine's fuel system, precisely metering and atomizing diesel fuel into the combustion chamber for efficient burning. It is manufactured to meet stringent OEM quality standards, offering superior spray pattern and durability over a worn injector that may leak or fail to atomize fuel correctly. Operators might notice a significant reduction in engine power, rough idling, increased black smoke, or difficulty starting the engine when this injector malfunctions.

Fuel Injector – Part No 222-5963-10r-1262 – 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
MaterialSteel alloy
ApplicationEngine fuel injection system
Service LifeReplace every 2,000-4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms include rough engine idling, a noticeable loss of power, and increased black smoke from the exhaust. If ignored, fuel economy will degrade, and the engine may become difficult to start or run unevenly. Continued operation with faulty injectors can lead to piston damage from unburnt fuel or excessive heat.

Installation Tip

Ensure the injector bore in the cylinder head is meticulously clean and free of any carbon deposits or debris before installation. Avoid overtightening the injector hold-down clamp, as this can distort the injector body.

Service Note

Always replace the fuel filter and inspect injector seals when installing new fuel injectors.