CATEngine Parts

107-7733 Fuel Injector — Cat 320B

This fuel injector is responsible for precisely atomizing and delivering diesel fuel into the engine cylinders for combustion. It is engineered for accurate fuel metering and durability under high pressure and temperature, outperforming worn injectors that deliver inconsistent spray patterns. Common failure symptoms include rough idling, loss of engine power, increased exhaust smoke, and poor fuel economy.

Fuel Injector – Part No 107-7733 – 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, precision machined components
ApplicationDiesel engine fuel system
Service LifeReplace as needed based on performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing fuel injector often first manifests as a noticeable drop in engine performance, such as reduced power or rough idling. If ignored, the issue can progress to increased fuel consumption, excessive exhaust smoke, and potential engine misfires. Continued operation with faulty injectors risks uneven cylinder wear and damage to other engine components.

Installation Tip

Ensure the engine is completely cool and the fuel system is depressurized before attempting removal. When installing, carefully align the injector and avoid cross-threading the retaining nut.

Service Note

Inspect the fuel lines, filters, and return lines for any signs of blockage or leaks when replacing fuel injectors.