CATEngine Parts

520-1511 Fuel Injector Wiring Harness — Cat 325D

This is a fuel injector wiring harness designed to transmit precise electrical signals from the engine control module to the fuel injectors. It is manufactured to meet stringent OEM quality standards, ensuring reliable performance and durability compared to a worn harness with corroded terminals or frayed wires. Operators may experience rough idling, misfires, or a complete loss of engine power when this harness fails.

Fuel Injector Wiring Harness – Part No 520-1511 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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Related CAT Parts

From the same category — may also be needed

10r-2828
Fuel Injector
209-4153
Ring Gear
3g-7665
Hydraulic Pump Cartridge
1w-0568-1w0568
Fuel Transfer Pump 1W 0568
3398174lK
Inframe Engine Kit
543-3739
Solenoid Valve Coil

Browse all CAT Engine Parts →

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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 Wiring Harness
MaterialAutomotive-grade wire and connectors
ApplicationEngine fuel injection system
Service LifeReplace if damaged or exhibiting symptoms
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing fuel injector wiring harness is often intermittent engine misfires or rough idling. If left unaddressed, the engine may start to run poorly, experience a significant loss of power, or fail to start altogether. Continued operation with a faulty harness can lead to uneven fuel distribution and potential damage to other engine components.

Installation Tip

Ensure all engine connectors are clean and free of debris before connecting the new harness. Avoid pulling or stressing the wires when routing the harness to prevent premature damage.

Service Note

Inspect the fuel injectors and the engine control module (ECM) connectors for any signs of corrosion or damage when replacing the wiring harness.