Shandong Shengyue Technology Development Co.,Ltd is one of the most professional sinotruk man engine fuel injector harness engine harness mc11 440 - 460 horsepower manufacturers and suppliers in China. Please feel free to buy high quality genuine auto parts at competitive price from our factory.
SINOTRUK MAN engine fuel injector harness engine harness MC11 440 - 460 horsepower
FUNCTION
1. Millisecond-level Solenoid Valve Signal Transmission: This component acts as the "nerve fiber" connecting the engine control unit (ECU) to the high-pressure common rail injectors. It is responsible for precisely transmitting the electrical pulse signals issued by the ECU to the solenoid valves located at the tips of the injectors in each cylinder, thereby ensuring stable engine idling and robust power output under heavy loads.
2. Absolute Electrical Insulation in High-Temperature Oil Environments: The injector wiring harness for MAN engines features an internal design; it is submerged within the cylinder head, immersed in lubricating oil maintained at high temperatures (100°C–120°C) and high pressure. This design prevents oil ingress-which could otherwise lead to wire short circuits or electrical leakage-and effectively eliminates high-voltage signal interference or system malfunctions.
3. Integrated Multi-Cylinder Mechanical Positioning, Error-Proofing, and Vibration Damping: The wiring harness assembly incorporates robust guide brackets made of rigid engineering plastics or metal. Furthermore, the lengths of the branch connectors for cylinders 1 through 6 are precisely calculated to securely anchor the otherwise loose wires. This prevents the harness from suffering physical abrasion against surrounding components-such as valve springs and rocker arms-caused by the engine's intense, high-frequency vibrations.
4. Boundary Sealing Against Internal Cylinder Oil: The terminal end of the wiring harness features an integrated O-ring seal assembly. This component establishes an absolute seal at the point where the wires exit the valve cover, serving a dual purpose: it prevents internal high-temperature oil and vapors from seeping or leaking outward, while simultaneously blocking external dust and debris from entering the cylinder. Additionally, it provides a critical protective function by preventing oil from "wicking" its way outward through the interior of the harness-via capillary action-potentially reaching the external main wiring loom or even causing catastrophic damage to the external engine control unit (ECU).
DETAILS
| DESCRIPTION | fuel injector harness | PART NUMBER | |
| WEIGHT |
0.5 kg |
VOLUME | 650 × 120 × 60 mm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Common Failure Symptoms and Reasons for Replacement
1. Aging due to Oil Exposure: The wiring harness is subjected to prolonged immersion in engine oil exceeding 100°C, causing the outer insulation sheath to become brittle and crack, which leads to minor current leakage or short circuits.
2. Poor Plug Contact: The solenoid valve terminals located at the top of the fuel injector become loose due to vibration, or the plug's locking tab is broken during the removal or installation of the injector.
3. Oil Seepage at Wire Outlet: The rubber grommet at the wire outlet (Part No. 080V25413-6089) has aged and deformed, resulting in severe oil seepage and leakage along the edge of the valve cover.
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