0445120397
BOSCH 0445120397 Common Rail Injector for FAW Jiefang J6 & FAWDE CA6DM2 11L
1112010-M10-0000, 1112010M100000F00RJ02035DLLA151P22401600 barProduct Overview
The Bosch 0445120397 is an updated heavy-duty CRIN2-16 common rail diesel fuel injector engineered for high-output commercial transport applications powered by FAWDE Xichai Aowei CA6DM2 (11.1L) turbodiesel platforms. Serving as the primary direct factory replacement and production update for injector 0445120277 across FAW Jiefang J6P, JH6, J6M, and J5P heavy tractor units, this injector operates at injection pressures up to 1600 bar. The hydraulic circuit incorporates control valve assembly F00RJ02035 and multi-hole nozzle 0433172240 (stamped DLLA151P2240) to satisfy Euro 4 and Euro 5 heavy commercial emission standards. Common field failure symptoms include excessive dynamic backleakage into the fuel return rail, extended hot-cranking, unburned black exhaust smoke under acceleration, and engine hesitation under heavy haul grades.
CRITICAL CONNECTOR TUBE TORQUE SEQUENCE: Never tighten the hold-down clamp bolt before seating and pre-torquing the high-pressure connector tube. Pre-torque the connector tube nut to 15 N·m first to ensure spherical alignment with the injector inlet port, torque the hold-down clamp bolt to 24 N·m, and finally torque the connector tube nut to 50-55 N·m. Improper torque progression causes internal fuel bypass past the O-ring seal, engine oil dilution, and rail pressure drop fault P0087.
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| FAW Jiefang J6P Heavy Duty Truck | FAWDE Aowei CA6DL1 / CA6DL2 / CA6DM2 (7.7L - 11.1L) | 2011-2022 |
| FAW Jiefang JH6 Commercial Tractor | FAWDE Aowei CA6DL1 / CA6DL2 / CA6DM2 (7.7L - 11.1L) | 2014-2022 |
| FAW Jiefang J6M Heavy Commercial Cargo | FAWDE Aowei CA6DL1 / CA6DL2 / CA6DM2 (7.7L - 11.1L) | 2012-2021 |
| FAW Jiefang J5P Heavy Truck | FAWDE Aowei CA6DL1 / CA6DL2 / CA6DM2 (7.7L - 11.1L) | 2010-2018 |
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | BOSCH |
| Part Number | 0445120397 |
| System Type | Common Rail Heavy Commercial Injector (CRIN2-16) |
| Engine Platform | FAWDE Xichai Aowei CA6DM2 (11.1L) |
| Engine Codes | CA6DM2-39E4, CA6DM2-42E4, CA6DM2-46E4, CA6DM2-39E5, CA6DM2-42E5 |
| Emission Standard | Euro 4 / Euro 5 |
| Operating PressureCore Spec | |
| Nozzle CodeCore Spec | 🔗 Shared Nozzle (2 assemblies):0445120277 |
| Nozzle Part NumberCore Spec | 🔗 Shared Nozzle (2 assemblies):0445120277 |
| Control Valve AssemblyCore Spec | 🔗 Shared Valve (2 assemblies):0445120277 |
| OE Part Number | 1112010-M10-0000 |
| Injector Hold-Down Clamp Torque | 24 N·m📐 Torque & Angle Wizard → |
| Connector Tube Pre-Torque | 15 N·m |
| Connector Tube Torque | 50-55 N·m |
| Fuel Line Nut Torque | 30-35 N·m |
| Warranty | 12 Months |
Frequently Asked Questions
Is 0445120397 completely interchangeable with 0445120277?
Yes. Bosch 0445120397 is the direct factory production update and interchangeable supersession for 0445120277 on FAWDE CA6DM2 (11.1L) Euro 4 and Euro 5 platforms. Both injectors utilize nozzle DLLA151P2240 (0433172240), valve F00RJ02035, and OE reference 1112010-M10-0000. They can be mixed across cylinders or replaced as a complete balanced set.
What is the correct installation torque sequence for the CA6DM2 connector tube?
Follow the standard 3-step sequence: Step 1, hand-thread the connector tube and pre-torque its retaining nut to 15 N·m; Step 2, torque the injector hold-down clamp bolt to 24 N·m; Step 3, perform final torque on the connector tube nut to 50-55 N·m. Finally torque the fuel supply line union nut to 30-35 N·m.
Can this injector be used on FAW Jiefang with CA6DL 8.6L engines?
No. FAWDE CA6DL engines (7.7L and 8.6L) require injector 0445120393 (OE 1112010-630) equipped with nozzle DLLA150P1622 and valve F00RJ01657. Installing 0445120397 into an 8.6L engine will result in fuel over-delivery and combustion knock.
Diagnostic Trouble Codes & Fault Protocols
Common diagnostic trouble codes (DTCs) triggered when this common rail injector experiences wear, circuit faults, or calibration drift:
Fuel Rail / System Pressure Too Low
Excessive internal backleak from worn control valve seats drops common rail pressure below target under engine load.
Injector Circuit Malfunction / Open Circuit
Solenoid coil resistance drift (0.2-0.5 Ω) or piezo stack degradation triggers driver stage shutdown on affected cylinders.
Cylinder Misfire & Balancing Deviation
Carbon-clogged nozzle spray holes or missing IMA calibration causes uneven cylinder contribution. Recode ECM and verify washer seating.
Fuel Rail / System Pressure Too High
Spill line backpressure or stuck metering valve prevents rail depressurization, creating overpressure risks under load.
Technical Diagnostic & Service Protocols
Authoritative field procedures, diagnostic testing thresholds, and service SOPs for this assembly.