CATEngine Parts

336-8178 Fuel Line — Cat 320D

This fuel line is a critical conduit responsible for delivering fuel from the tank or filter to the engine's injection system, ensuring proper combustion. Constructed from durable, fuel-resistant materials, it maintains its integrity under pressure and temperature fluctuations, unlike cracked or leaking lines. Operators may notice a fuel smell, engine misfires, difficulty starting, or a noticeable loss of engine power when this fuel line fails.

Fuel Line – Part No 336-8178 – 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 Line
MaterialReinforced rubber and metal
ApplicationFuel delivery system
Service LifeReplace every 2,000 hrs or if signs of wear appear
CompatibilityCAT C6.6, M316D, M318D, M322D, 320D
ConditionNew — OEM specification

Failure Symptoms

The first sign of a failing fuel line is often a noticeable smell of diesel fuel around the engine compartment. If ignored, this can lead to fuel leaks, causing intermittent engine sputtering, difficulty starting, or a significant loss of power. A severe leak poses a fire hazard and can lead to complete engine shutdown.

Installation Tip

Ensure all connections are clean and free of debris before attaching the new fuel line to prevent contamination of the fuel system. Do not overtighten the fittings, as this can damage the line or the connection points.

Service Note

Inspect the fuel filter and fuel pump for proper operation when replacing a fuel line, as these components are part of the same system.