CATFuel System

7W7026 Nozzle As-Fuel Valve — Cat 3412

This is a fuel valve nozzle assembly, a critical component of the fuel injection system that precisely meters and atomizes fuel into the engine cylinders. Manufactured to strict quality standards, it ensures optimal fuel delivery and combustion efficiency, unlike a worn nozzle that may leak or spray fuel improperly. Operators might observe rough engine idling, a noticeable loss of power, increased exhaust smoke, or difficulty starting the engine when this component fails.

Nozzle As-Fuel Valve – Part No 7W7026 – 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 Injection Nozzle Assembly
MaterialHardened steel alloy
ApplicationFuel injection system
Service LifeReplace every 4,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Initial symptoms include a rougher engine idle and a slight decrease in overall power output. If left unaddressed, fuel atomization will worsen, leading to increased fuel consumption and black smoke from the exhaust. Continued operation with a faulty nozzle can cause uneven cylinder loading and potential engine damage.

Installation Tip

Carefully clean the nozzle mounting bore in the cylinder head before installation to prevent debris from entering the combustion chamber. Avoid overtightening the nozzle hold-down clamp, as this can distort the nozzle body.

Service Note

Replace all fuel nozzles in the set simultaneously and inspect the fuel filter for any signs of contamination.