CATFuel System

7C0340 Nozzle As-Unit Injector — Cat INDUSTRIAL GENERATOR

This is a Nozzle Assembly for a Unit Injector, a vital component within the CAT fuel system responsible for high-pressure fuel delivery. Manufactured to strict standards, it ensures precise fuel metering and injection timing, outperforming worn units with consistent spray patterns. Observable symptoms of failure include rough idling, reduced engine power, and increased exhaust emissions.

Nozzle As-Unit Injector – Part No 7C0340 – 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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Fuel System Component

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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 TypeUnit Injector Nozzle Assembly
MaterialHardened steel alloy
ApplicationUnit fuel injection system
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing unit injector nozzle may include a slight hesitation during acceleration or an audible change in engine noise. If ignored, the engine may run very rough, produce excessive smoke, and lose significant power. Continued operation risks uneven cylinder loading and potential damage to other engine components.

Installation Tip

Ensure the injector bore in the engine head is meticulously clean before installing the new nozzle assembly. Always use new seals and O-rings provided with the assembly.

Service Note

When replacing a unit injector nozzle, it is recommended to inspect the associated fuel lines and seals for any signs of wear or leakage.