Bosch 4-Pin Common Rail Diesel Injector 0445120270 / 0445120271 | A4710700487 / 0986435598 High-Pressure CRDI Assembly For Heavy-Duty Engines
1. Product:0445120270 / 0445120271 | A4710700487 / 0986435598
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
In high-load diesel engines, the injector is not merely a delivery device-it is a combustion strategist. The Bosch 4-pin injector assemblies (0445120270 / 0445120271 / A4710700487 / 0986435598) are engineered to orchestrate diesel atomization with microsecond precision.
Rather than focusing on fuel volume alone, these injectors control spray geometry, timing layers, and injection intervals, shaping combustion efficiency from inside the cylinder. This makes them essential in modern common rail diesel ecosystems, where performance is defined by control rather than force.
Product Identification & Cross References
These injector assemblies are widely recognized across OEM and aftermarket platforms:
Bosch Part Numbers:
0445120270
0445120271
OEM Cross References:
A4710700487
A47107004870080
Reman / Exchange Number:
0986435598
✔ Designed for 4-pin electrical interface systems
✔ Fully compatible with advanced CRDI platforms
Engineering Under Extreme Pressure Conditions
These injectors operate within systems reaching:
Injection Pressure: up to 1800–2200 bar
Injection Frequency: multiple pulses per combustion cycle
Response Time: millisecond-level control
At this level, diesel must be atomized into ultra-fine particles. The injector nozzle ensures:
✔ Uniform spray cone distribution
✔ Reduced wall wetting
✔ Optimized air–diesel mixing
➡ Result: improved torque, reduced emissions, and cleaner combustion.
Structural Architecture: Precision Built from the Inside Out
Each injector assembly integrates multiple high-precision components:
Solenoid Actuator (4-pin controlled) – ensures rapid response
Nozzle Assembly – micron-level orifice machining
Control Valve System – regulates injection phases
High-Strength Body – withstands extreme cyclic pressure
Materials include hardened alloy steel and corrosion-resistant coatings, enabling long-term durability in high-temperature diesel environments.