CATEngine Parts

249-0746 Fuel Injector — Cat Engine 3512B

This is a high-performance fuel injector engineered for heavy-duty Caterpillar diesel engines, specifically designed to optimize fuel delivery for maximum power and efficiency. It is built to meet rigorous OEM specifications, offering superior durability and consistent spray patterns compared to a worn or damaged injector. Operators might experience noticeable decreases in engine performance, rough running, increased exhaust emissions, or difficulty starting if this component fails.

Fuel Injector – Part No 249-0746 – 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 and specialized seals
ApplicationDiesel fuel injection system
Service LifeReplace based on engine performance diagnostics and hours
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing fuel injector may include subtle power loss or increased fuel usage. If ignored, the problem can escalate to noticeable engine hesitation, rough idling, and potential damage to other engine components due to incomplete combustion. Continued operation with a faulty injector risks reduced engine efficiency and potential operational disruptions.

Installation Tip

Ensure all sealing surfaces are perfectly clean before installing the new injector to prevent leaks. Do not reuse old copper washers or seals, as they are designed for single use and can compromise the seal.

Service Note

Inspect the fuel pump and fuel lines for any signs of wear or contamination when replacing a fuel injector.