222-5917 Injector Wiring Harness for Caterpillar C7 C9.3 HEUI Engine
Brand: Caterpillar (CAT)
Part Number: 222-5917, 2225917
Condition:OEM New (Direct Replacement)
Compatible Engines: CAT C7, C9.3, C7 Marine/Petroleum
$199.00
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Product Highlights
Overview
| Brand | Caterpillar (CAT) |
|---|---|
| OEM P/N | 222-5917 |
| Compatible Engines | CAT C7, C9.3, C7 Marine/Petroleum |
Product Details
High-Performance 222-5917 Injector Wiring Harness for Caterpillar HEUI C7 & C9 Engines
The 222-5917 Injector Wiring Harness is a vital link in the Caterpillar (CAT) HEUI (Hydraulic Electronic Unit Injection) fuel system. Designed to transmit precise electrical signals from the Electronic Control Module (ECM) to the fuel injectors, this harness ensures that injection timing and fuel delivery are perfectly synchronized. In high-performance engines like the CAT C7 and C9, replacing a worn harness with our OEM New 222-5917 restores power and prevents engine misfires or “No-Start” conditions.
I. Engineered for Extreme Engine Bay Heat
The internal environment of a C7 or C9 engine is subjected to intense thermal cycles. Our 2225917 harness is built to withstand these rigorous industrial conditions:
- Advanced Insulation: Wrapped in specialized heat-resistant casing to resist brittle cracking caused by long-term exposure to hot engine oil.
- Oil-Resistant Seals: Since HEUI systems utilize oil pressure for injection, this harness features high-grade seals to prevent oil wicking and electrical interference.
- Precision Terminals: Connectors are designed for a “lock-tight” fit, ensuring consistent voltage delivery even during high-vibration operations in 325D or 329D excavators.
II. Unmatched Versatility Across CAT Equipment
The 222-5917 wiring harness is a highly versatile part used across a wide spectrum of Caterpillar machinery:
| Excavators | Direct fit for 324D, 325D, and 329D series models. |
| Road Machinery | Compatible with 120K, 140K, 160K Motor Graders and PM-102 Cold Planers. |
| Loaders & Skidders | Fits 950H / 962H Wheel Loaders and 525C / 545C Wheel Skidders. |
| Marine & Industrial | Widely utilized in C7 Marine and Petroleum engines for reliable offshore power. |
III. Critical Verification & 12-Month Warranty
MANDATORY STEP: TOTAL CONFIDENCE SERVICE
Because Caterpillar systems vary by serial number, accuracy is vital for a successful installation:
- Data Requirement: After ordering, please provide your VIN or a clear picture of your VIN Data Plate.
- SIS Database Check: Our experts will cross-reference the CAT SIS database to verify the 222-5917 is the perfect match for your engine.
- Warranty: Enjoy a 12-month warranty on this OEM New component, manufactured to meet exact original equipment standards.
IV. Why Source from Liuchuang Parts?
Reliability First
We prioritize components that prevent engine misfires and poor fuel economy, ensuring your machinery stays productive.
Expert Support
Our team provides technical consultation and fast after-sales service to eliminate the risk of incorrect parts and project delays.

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