This injector, identified by OE numbers VG1560080276 and 61560080276, is a diesel fuel injection component primarily used in Weichai engines. It is widely applied in heavy-duty trucks including HOWO (Sinotruk), Shaanxi Auto, and FAW vehicles . The injector is compatible with Weichai WD615, WD618, and WP10 Euro 2 emission standard engine series . It features a nozzle type commonly referenced as DLLA155P180 or L204PBA .

1. Installation Location
This injector is installed directly into the cylinder head of the engine, with one injector per cylinder. The installation interface uses an M14×1.5 fuel inlet port and a standard 2-pin electrical connector for plug-and-play compatibility with the original engine harness . The injector body is made of high-strength alloy steel with a wear-resistant stainless steel nozzle .

2. Function
The injector delivers precisely atomized diesel fuel into the engine combustion chamber under high pressure (18–22 MPa operating range) . It works with the engine control unit (ECU) to optimize the air-fuel mixture, ensuring efficient combustion, stable engine performance, and compliance with Euro 2 emission standards . Each injector is factory-tested for injection volume, leakage, and recirculation consistency before shipment .

3. Maintenance and Service
The injector needle valve assembly has extremely high precision fitting tolerances, and the nozzle holes are very small in diameter. Only clean, specified-grade diesel fuel should be used to prevent injector malfunction . When replacing the needle valve assembly, soak the new part in clean diesel at approximately 80°C for about 10 seconds to dissolve the rust-preventive oil, then thoroughly clean it . The injector itself contains no user-serviceable internal parts; if internal wear or damage occurs, the complete injector unit should be replaced. Routine inspection and adjustment are recommended at regular service intervals (e.g., every 700 operating hours for similar injectors) .

4. Important Notes
Always verify the part number (VG1560080276 or 61560080276) against the original component before installation. Ensure the engine fuel system is depressurized before removal or installation. Use new seals during replacement to prevent fuel leaks. The injector is designed for Euro 2 emission standard applications; confirm compatibility with the specific engine model before purchase .