CATEngine Parts

1363193 Nozzle As-Washer — Cat 120M 12M

This nozzle assembly washer is a precision-engineered component designed to seal and support fuel injector nozzles within the engine's fuel system. It ensures a leak-free connection and proper seating of the nozzle, critical for efficient combustion and emissions control. A damaged or missing washer can lead to fuel leaks, rough idling, reduced engine power, and increased exhaust emissions.

Nozzle As-Washer – Part No 1363193 – 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 TypeNozzle Assembly Washer
MaterialSteel with sealing compound
ApplicationFuel injector nozzle sealing
Service LifeReplace with each injector service
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

The initial symptom of a faulty nozzle washer is often a slight rough idle or a faint smell of diesel fuel around the engine. If ignored, fuel may begin to visibly leak from the injector area, leading to a noticeable loss of engine power and increased smoke from the exhaust. Continued operation with a leaking seal can result in significant fuel loss, potential fire hazards, and internal engine damage.

Installation Tip

Always use a new washer for each fuel injector nozzle installation to ensure a proper seal. Ensure the nozzle seat in the cylinder head is clean and free of debris before installing the nozzle and washer.

Service Note

Inspect the fuel injector nozzle tip for wear or damage and clean the injector bore in the cylinder head when replacing the nozzle washer.