Bosch 0445120104 / 0445120207 4-Pin Common Rail Diesel Injector CRIN4.2 | A4720700787 A4720700387 A4720700587 0986435539 For DD15 / DD16 Engines
1. Product:0445120104 / 0445120207
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 heavy-duty diesel engines, injectors are structurally tied to engine performance under load. The Bosch 0445120104 / 0445120207 injector is engineered for diesel common rail systems, where it acts as a load-responsive metering device, adapting injection quantity and timing based on torque demand.
Unlike gasoline injectors, this unit operates in a high-compression diesel environment, handling both pressure and combustion heat simultaneously. Its role is not just delivery-it stabilizes combustion across variable load conditions in engines like DD15 and DD16.
Part Number System & Cross-Compatibility Logic
This injector is widely recognized for its extensive OEM interchangeability:
Bosch Numbers:
0445120104
0445120207 (updated/replacement model)
OEM References:
A4720700787
A4720700387
A4720700587
Exchange Number:
0986435539
According to Bosch application data, 0445120104 is directly replaceable by 0445120207 within the same CRIN platform, ensuring seamless upgrades or replacements.
Engine Platform Adaptability
This injector is optimized for large-displacement diesel engines, including:
Detroit Diesel DD15 (14.8L)
Detroit Diesel DD16 (15.6L)
Mercedes-Benz heavy-duty OM472 family
These engines are typically used in long-haul trucking, mining logistics, and industrial transport, where sustained load cycles demand consistent injection accuracy.
Pressure Envelope & Injection Sequencing
Operating within high-pressure common rail systems (~1800–2200 bar range), this injector enables:
Pilot injection → smooth ignition
Main injection → power generation
Post injection → emissions reduction
This staged injection process ensures complete diesel combustion, reducing soot and optimizing energy output per cycle.