CATEngine Parts

222-5917 Fuel Injector Wiring Harness Assembly — Cat 325D 329D

This is a CAT Fuel Injector Wiring Harness Assembly, an essential electrical component that delivers precise voltage signals to the fuel injectors for optimal engine performance. It is built to meet stringent OEM quality standards, ensuring reliable electrical connections and durability against engine heat and vibration compared to a worn harness. Operators may experience rough idling, engine misfires, poor fuel economy, or a check engine light when this harness begins to fail.

Fuel Injector Wiring Harness Assembly – Part No 222-5917 – 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.

WhatsApp for Price & Availability☎ Call Mumbai Office

Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

Related CAT Parts

From the same category — may also be needed

7Y1874
Spring
313-6014
Solenoid Valve
333-8242
24V Solenoid Valve
297-4587-297-4588
Joystick Controller 297 4587
153-5964
Thermostat
3341996
Kit-Piston Rings

Browse all CAT Engine Parts →

Ship This Part To Your Location

DubaiSaudi ArabiaNigeriaKenyaSouth AfricaBangladeshMalaysiaGhanaQatarEgypt
India
MaharashtraGujaratTamil NaduRajasthanKarnatakaTelangana

Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

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 Assembly
MaterialHigh-temperature resistant wire, durable connectors
ApplicationEngine fuel injection system
Service LifeReplace as needed based on inspection and diagnostic codes
CompatibilityCAT 324D, 325D, 329D, 584, 120K, 12K, 12M, 140G
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a failing fuel injector wiring harness is often an intermittent engine misfire or a rough idle. If left unaddressed, the engine may run poorly, experience significant power loss, and trigger persistent diagnostic trouble codes, potentially leading to increased fuel consumption and emissions. Continued operation with a faulty harness can lead to uneven cylinder wear and potential damage to the ECM.

Installation Tip

Carefully label each connector before disconnecting the old harness to ensure correct reinstallation. Avoid pulling or stressing the wires when routing the new harness; secure it properly using existing clips or ties.

Service Note

Inspect the fuel injectors themselves for proper operation and clean electrical connections when replacing the wiring harness.