CATFuel System

573-8033 Fuel Injector — Cat DE500GC DE450SGC

This is a fuel injector responsible for atomizing and delivering fuel directly into the engine's combustion chamber at precise intervals. It is engineered to meet exacting OEM specifications for optimal spray pattern and fuel efficiency, unlike a worn injector that may leak or deliver fuel unevenly. Operators might observe rough idling, reduced power, increased fuel consumption, or visible smoke if this injector malfunctions.

Fuel Injector – Part No 573-8033 – CAT Spare Part
Part Specifications
BrandCAT
CategoryFuel System
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

Use clean, filtered fuel — fuel injection components have micron-level tolerances. Prime fuel system before cranking to avoid dry-start damage. Replace fuel filter whenever servicing injection components. Calibrate injectors after replacement if equipment has ECU.

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 precision-machined nozzle
ApplicationEngine fuel injection system
Service LifeReplace as needed based on performance or diagnostics
CompatibilityOEM specification
ConditionNew

Failure Symptoms

A failing fuel injector may initially cause rough engine idling or a slight loss of power. If left unaddressed, the engine may begin to misfire, leading to increased fuel consumption and visible exhaust smoke. Continued operation with a faulty injector risks uneven cylinder loading and potential damage to pistons or cylinder walls.

Installation Tip

Ensure the injector seat in the cylinder head is perfectly clean and free of carbon deposits before installing the new injector. Overtightening the injector hold-down clamp can distort the injector body or damage the threads.

Service Note

Inspect the fuel return lines and seals for any signs of leakage when replacing a fuel injector.