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| Replaces OEM Part Numbers | Bosch 0445120231 / Komatsu 6754-11-3010 (6754113010) |
| Brand | COGENG Genuine (Bosch OEM Base) |
| Injector Type | Common Rail Fuel Injector (CRIN) |
| Common Applications | Komatsu PC200-8, PC220-8, PC300-8, PC350-8 Excavators |
| Symptoms Solved | Low power, black/white smoke, hard starting, high fuel consumption, engine knock |
| Key Feature | Genuine Bosch core with multi-hole nozzle for superior fuel atomization |
| Parameter | Specification |
|---|---|
| COGENG Part Number | 0445120231 |
| Bosch Cross Number | 0445120231 |
| Komatsu OEM Number | 6754-11-3010 |
| Product Type | Common Rail Solenoid Injector |
| Technology | Bosch Genuine Architecture |
| Fuel System | High-Pressure Common Rail (HPCR) |
| Parameter | Specification |
|---|---|
| Actuation | Solenoid-operated electronic control |
| Coil Resistance | 0.9 – 1.3 Ω @ 20°C |
| Peak Current | 20 – 24 A |
| Hold Current | 10 – 12 A |
| Response Time | < 0.5 ms |
| Parameter | Specification |
|---|---|
| Maximum Rail Pressure | 1,600 bar (23,200 psi) |
| Nozzle Configuration | Multi-hole (optimized for Komatsu engines) |
| Spray Angle | OEM-specified |
| Static Flow Rate | Factory-calibrated per Bosch spec |
| Flow Tolerance | ± 3% |
| Parameter | Specification |
|---|---|
| Overall Length | OEM standard |
| Mounting Thread | M16 × 1.5 |
| Clamp Bolt Torque | 65 ± 5 Nm (verify with engine manual) |
| High-Pressure Inlet | M14 × 1.5 |
| Sealing Washer | Copper (replace each installation) |
| Weight (each) | Approx. 0.78 kg |
| Component | Material |
|---|---|
| Injector Body | Case-hardened nickel-chrome-moly steel |
| Nozzle Needle | High-speed tool steel with anti-wear coating |
| Solenoid Coil | High-temperature Class H copper |
| Seals | Viton (FKM) / PTFE |
| Internal Filter | Stainless steel (20–30 micron) |
| Brand | Part Number |
|---|---|
| COGENG | 0445120231 |
| Bosch | 0445120231 |
| Komatsu | 6754-11-3010 |
| Interchange | 0445120232, 6754-11-3011 |
✅ 100% interchangeable with original Komatsu 6754-11-3010 injectors.
✅ No ECU remapping or hardware modification required for standard applications.
This injector is specifically calibrated for Komatsu engines used in the following equipment families:
Komatsu PC200-8 / PC200LC-8
Komatsu PC210-8 / PC210LC-8
Komatsu PC220-8
Komatsu PC300-8 / PC300LC-8
Komatsu PC350-8 / PC350LC-8
Komatsu PC360-8 / PC360LC-8
Komatsu PC400-8 / PC400LC-8
Komatsu PC450-8
Komatsu WA380-6 / WA380-8
Komatsu WA420-6 / WA420-8
Komatsu WA470-6 / WA470-8
Komatsu WA500-6 / WA500-8
Komatsu D275A-5 / D275AX-5
Komatsu D375A-6
Komatsu HD465-7 / HD605-7
Komatsu SAA6D107E-2 / SAA6D107E-3
Komatsu SAA6D114E-3 / SAA6D114E-5
Komatsu SAA6D125E-3 / SAA6D125E-5
Komatsu SAA6D140E-3 / SAA6D140E-5
⚠️ Always verify engine serial number and injector trim code compatibility before installation.
| Item | Requirement |
|---|---|
| Copper sealing washer | MUST be replaced every time |
| Bore cleanliness | Absolute – contamination is the #1 failure cause |
| Fuel filtration | Minimum 5 micron absolute |
| Lubrication | Use clean engine oil on O-rings only |
| ECU coding | Required if original injector had trim codes |
| Fastener | Torque (Nm) | Torque (ft-lbs) |
|---|---|---|
| Injector clamp bolt | 65 ± 5 | 48 ± 4 |
| High-pressure line nut | 40 ± 4 | 30 ± 3 |
| Fuel return line | 25 ± 3 | 18 ± 2 |
📘 Full installation manual included with each injector set.
Frequently Asked Questions
Q: Are 5263308 and 0445120029 the same injector?
A: Yes. Cummins 5263308 and 3973060 are the OEM equipment part numbers, while 0445120029 and 0445120358 are the Bosch production codes for the same common rail injector. This COGENG injector is a direct replacement for all four part numbers on QSL8.9 and QSL9 engines.
Q: What happens if I don't program the IQA code for this injector?
A: The IQA (Injector Quantity Adjustment) code is critical for precise fuel delivery calibration. If the new IQA code is not programmed into the engine ECU after installation, the engine may run rough, produce black smoke, experience power loss, or log active fault codes related to fuel pressure deviation.
Q: What are symptoms of a failing injector on a Komatsu PC360-7 with QSL engine?
A: Common signs include excessive black smoke under load, noticeable loss of digging power, increased fuel consumption, engine misfire or rough idle, and a distinct "knocking" sound from the affected cylinder.
Contact COGENG
📞 Phone: +86-185-2913-1515
📧 Email: hugo@cogeng.net
💬 WhatsApp +86-185-2913-1515
💬 WeChat: +86-185-7865-1106
🌐 Website: cogeng.net
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