Osch 4-Pin Diesel Common Rail Injector 0445120287 0445120288 | OEM A4710700587 A4710701187 | Heavy-Duty CRDI Injection Unit
1. Product: 0445120287 0445120288
2. Compatible Equipment: Diesel Fuel Injection Systems
3. Manufacturer: Aftermarket OEM Replacement
4. Condition: Brand New, Fully Tested
5. Origin: ABOSEDE Diesel
6. Shipping period: 3-5 business days
7. Payment terms: T/T, Western Union, PayPal
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Product Introduction
The heartbeat of a modern diesel engine is not its pistons or its crankshaft, but the precise, millisecond timing of its fuel injection. In the realm of heavy-duty transportation and commercial logistics, the margin between profit and loss is often measured in fuel consumption and uptime. This is where the Bosch 4-Pin Solenoid Injector series-specifically models like 0445120287, 0445120288, 0986435624, and the extensive A471 Mercedes-Benz lineup (including A4710700587, A4710700387, A4710700588, A4710780245, A4710701187, A4710701287)-becomes critical. These are not merely components; they are the gatekeepers of the combustion cycle, engineered to withstand the punishing demands of the "120 Series" architecture while delivering the atomization required for Euro 5 and Euro 6 compliance.
Product References & Compatibility Mapping
This injector series integrates multiple cross-referenced numbers:
Bosch: 0445120287 / 0445120288
Remanufactured: 0986435624
OEM References:
A4710700587
A4710700387
A4710700588
A4710780245
A4710701187
A4710701287
✔ Designed for Bosch 4-pin electronic injector systems
✔ Widely applied in Euro V / Euro VI heavy-duty diesel engines
Internal Architecture: Precision at Micron Scale
At its core, the injector is a high-speed electro-hydraulic actuator, featuring:
Solenoid-driven control valve (4-pin interface)
Ultra-fine nozzle orifices for atomization
Hardened internal flow channels
Leak-off circuit for pressure stabilization
Each component operates within micron-level tolerances, ensuring that diesel is delivered as a finely atomized spray, not bulk flow.
Pressure Behavior & Injection Strategy
Operating under high-pressure diesel conditions:
System Pressure: Up to 2200 bar
Injection Events: Pilot / Main / Post / Regeneration injection
Activation Speed: Sub-millisecond response
This enables:
✔ Reduced combustion noise
✔ Improved cold-start behavior
✔ Lower NOx and particulate emissions
➡ The injector acts as a pressure-controlled pulse generator.