COGENG presents a premium fuel injector that cross-references multiple OEM part numbers for Komatsu heavy equipment applications. This precision-engineered injector delivers superior fuel atomization, reliable performance, and extended service life for demanding construction and mining operations.
| Replaces OEM Part Numbers | Komatsu 4063524 / 6743-11-3320 (6743113320) / Bosch 0432191341 |
| Brand | COGENG (Premium OEM Replacement) |
| Injector Type | Fuel Injector Assembly |
| Common Application | Komatsu Excavator / Wheel Loader / Dozer Engines |
| Key Feature | Single universal injector replaces multiple Komatsu & Bosch OEM part numbers |
| Parameter | Specification |
|---|---|
| COGENG Part Number | 4063524 |
| DENSO Cross Number | 0432191341 |
| Komatsu OEM Numbers | 6743-11-3320, 6743113320 |
| Product Type | Electronic Unit Injector (EUI) / Common Rail Injector |
| Interchange Numbers | 4063524, 0432191341, 6743-11-3320, 6743113320, 0432191342 |
| Parameter | Specification |
|---|---|
| Actuation Type | Solenoid Operated Electronic Control |
| Coil Resistance | 0.9 - 1.2 Ω @ 20°C |
| Peak Current | 22A ± 2A |
| Hold Current | 10A ± 1A |
| Inductance | 1.0 - 1.4 mH |
| Response Time | < 0.45 ms |
| Parameter | Specification |
|---|---|
| Injection Type | High-Pressure Common Rail Direct Injection |
| Maximum Rail Pressure | 1,600 bar (23,200 psi) |
| Nozzle Configuration | 6 holes × 0.16mm |
| Spray Angle | 146 degrees |
| Static Flow Rate | 580 cc/min @ 100 bar |
| Dynamic Flow Tolerance | ±3% |
| Injection Timing | ECU Controlled Variable |
| Parameter | Specification |
|---|---|
| Overall Length | 192 mm |
| Body Diameter | 23 mm |
| Mounting Thread | M16 × 1.5 |
| Clamp Bolt Torque | 65 ± 5 Nm |
| High-Pressure Inlet | M14 × 1.5 |
| Leak Off Connection | 8mm Push-On Type |
| Weight (Each) | 0.75 kg |
| Component | Material Specification |
|---|---|
| Injector Body | Case-Hardened Nickel-Chrome-Moly Steel |
| Nozzle Needle | High-Speed Tool Steel with DLC coating |
| Solenoid Coil | High-Temperature Class H Copper |
| Plunger Assembly | Ceramic-Coated Stainless Steel |
| Sealing Washer | Annealed Copper (Single Use) |
| O-Rings | Viton (FKM) -40°C to +200°C |
| Filter Screen | Stainless Steel 20 micron |
| Brand | Part Number |
|---|---|
| COGENG | 4063524 |
| DENSO | 0432191341 |
| Komatsu | 6743-11-3320 |
| Komatsu (alt) | 6743113320 |
| Interchange | 0432191342, 6743-11-3321 |
| Engine Model | Equipment Models |
|---|---|
| SAA6D114E-3 | PC300-7, PC350-7, PC360-7 |
| SAA6D114E-5 | PC300-8, PC350-8, PC360-8 |
| SAA6D125E-3 | PC400-7, PC450-7 |
| SAA6D125E-5 | PC400-8, PC450-8 |
| Equipment Model | Application |
|---|---|
| PC300-7 | 30-ton Hydraulic Excavator |
| PC300LC-7 | Long Track Excavator |
| PC350-7 | 35-ton Hydraulic Excavator |
| PC350LC-7 | Long Track Excavator |
| PC360-7 | 36-ton Hydraulic Excavator |
| PC360LC-7 | Long Track Excavator |
| PC400-7 | 40-ton Hydraulic Excavator |
| PC400LC-7 | Long Track Excavator |
| PC450-7 | 45-ton Hydraulic Excavator |
| PC450LC-7 | Long Track Excavator |
| Parameter | SAA6D114E-3 | SAA6D125E-3 |
|---|---|---|
| Cylinders | 6 in-line | 6 in-line |
| Displacement | 11.04 L | 11.05 L |
| Power Output | 245-280 kW | 257-320 kW |
| Fuel System | Common Rail | Common Rail |
| Emission Standard | Tier 3 | Tier 3 |
Q: Are 4063524, 6743-11-3320 and 0432191341 the same injector?
A: Yes, these part numbers refer to the same fuel injector assembly. Komatsu 4063524 and 6743-11-3320 are OEM equipment codes, while 0432191341 is the Bosch production number. This COGENG injector is a direct replacement for all three.
Q: What Komatsu engines use this fuel injector?
A: This injector is commonly found on various Komatsu diesel engines, including select S6D125, SA6D140, and related large-bore engine platforms used in PC400-6/7, D155A, and WA600 series equipment. Always verify the part number on your original injector body to confirm exact fitment.
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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