Bosch original Replacement for OEM 5263304, Fuel Injector 0445120070 3976631 for Cummins ISLE 8.9L QSL9 Kamaz 6520-19 8.9L KAMAZ 6520-B4 8.8L, cross reference 0445120241 original new injector

For procurement teams supporting heavy-duty diesel fleets, the BOSCH 0445120070 common rail fuel injector provides an industrial-grade solution for high-pressure CRIN systems. Developed by Robert Bosch GmbH, this solenoid injector delivers precise fuel metering and optimized atomization, supporting efficient combustion, improved fuel economy, lower smoke emissions, enhanced cold starting and improved torque output. A high-strength alloy steel body, wear-resistant needle valve and corrosion-resistant surface treatment support durability and long service life.

The injector is identified by Bosch OE number 0 445 120 070 and is also listed under 0445120241, 0986435512 and 0986AD1954. Cummins cross references include 3976631, 4930485 and 5263304, together with 3976631RX, 4930485NX and 5263304RX. Documented engine appliions cover Cummins ISLe 8.9L, ISLe CM850, ISLe Euro III, Euro IV and Euro V variants, plus QSL 8.9L, ISC 8.3L and ISC8.3. Compatibility should always be confirmed by OE number and injector code before ordering.

Precision manufacturing includes Bosch original design, CNC components, laser-calibrated injection characteristics and factory flow testing. The injector serves trucks, buses, construction machinery, mining equipment, power generation systems and agricultural equipment, with new, OEM and reman options available. For correct installation, verify the OE number and injector code, replace the copper washer and fuel filter, and clean the injector bore. Post-installation checks include leak testing, diagnostic scanning and, where required, ECU coding and injector calibration.