CATEngine Parts

173-4647 Injector — Cat Engine 3126

This is a fuel injector that precisely meters and atomizes diesel fuel into the combustion chamber for optimal engine performance. It meets stringent OEM quality standards, ensuring superior durability and spray pattern compared to worn or damaged injectors. Operators may notice rough idling, reduced power, or increased exhaust smoke when an injector begins to fail.

Injector – Part No 173-4647 – 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
ApplicationFuel injection system
Service LifeReplace as needed based on performance diagnostics
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial signs of a failing injector include a noticeable drop in engine power and increased fuel consumption. If ignored, the engine may begin to misfire, leading to rough idling and excessive exhaust emissions. Continued operation with a faulty injector can result in uneven cylinder wear and potential damage to other engine components.

Installation Tip

Ensure the injector bore is thoroughly cleaned of any carbon deposits before installation. Avoid overtightening the injector hold-down clamp, as this can distort the injector body.

Service Note

Always inspect the injector seals and O-rings for wear or damage and replace them as necessary.