High Quality QSK19 diesel Engine Common Rail Fuel Injector 4087887 4010163 4928346
Product Details
Cummins diesel injector QSK19
,Common rail fuel injector 4087887
,Diesel engine injector 4010163
High Quality QSK19 diesel Engine Common Rail Fuel Injector 4087887 4010163 4928346
| Number |
4928346 |
| OEM NO |
4087887 |
| AppliC-A-Tion | C-UMMINS INJECTOR |
| Payment Term | T/T, L/C, Western |
Table 1: Basic Parameters
| Parameter | Details |
| Komatsu Part No. | 4928346 |
| Engine Series | C-ummins QSK23 Electronic Engine (CM2250) |
| Type | Solenoid-Driven High-Pressure Common Rail Injector (HPI System) |
| Structure | Integrated Solenoid, Top Inlet, Bottom Outlet, Long Plunger Design |
| Net Weight | 1.814 kg |
| Dimensions | 310mm × 60mm × 60mm |
| Material | Body: Forged Steel; Components: Hardened Alloy; Solenoid: High Permeability Stainless Steel |
Table 2: Performance Specifications
| Parameter | Details |
| Control | ECM Electronic Control (24V Solenoid), Closed-Loop Timing & Flow |
| Operating Pressure | 1800–2200 bar |
| Opening Pressure | 340–360 bar |
| Flow Rate | 520–540 cc/min @ 100 PSI |
| Nozzle | 10-Hole × 0.24mm, Spray Angle 150° |
| Fuel System | C-ummins HPI High-Pressure Common Rail System |
| Fuel Standard | China III/IV, Euro III Diesel, 0# / -10# / -20# |
| Temp Range | -40℃ to +135℃ |
| Electrical | 2-Pin Deutsch Connector, IP67 Protection |
| Response Time | ≤0.28 ms |
Table 3: Application & Installation
| Parameter | Details |
| Engine Fit | C-ummins QSK23 (23L Inline 6-Cyl, Turbocharged & Aftercooled) |
| Komatsu Models | SA6D170E/SAA6D170E, PC1250-7/8 Excavators |
| Bore × Stroke | 159.0mm × 190.0mm |
| Power Range | 760–950 HP |
| Torque Range | 3500–4200 N·m |
| Install Torque | Mounting Bolts: 90–100 N·m |
| Gasket | 4099395 (Copper, Single-Use Only) |
| Install Notes | Deep Clean Fuel Passages, Replace All Seals, ECM Recalibration |
| Applications | Mining Trucks, Large Excavators, Oilfield Equipment, Marine, Gen-Sets |
Table 4: Quality & Warranty
| Parameter | Details |
| Grade | New Original / OEM Remanufactured (RX/R Suffix) |
| Factory Test | 100% Flow, Pressure, Response, Atomization, Leakage & Durability Test |
| Warranty | New: 12–24 Months; Reman: 6–12 Months |
| Standard | C-ummins QSK Original, ISO 9001:2015, TS16949 |
| Packing | Original Komatsu/C-ummins Box, Anti-Rust Oil, Shock-Proof Foam, Anti-Static Bag |
| MOQ | 1 PC |
| Common Failures | Slow Response, Poor Atomization, Dripping, Black Smoke, Low Power, Rough Idle |
| Void Conditions | Bad Fuel, Contamination, Overpressure, Water Damage, Disassembly, Uncalibrated Programming |
C-ummins QSK23 Series injectors are designed for 23L large-displacement QSK23 electronic control engines, as core components of the high-pressure common rail system, adopting C-ummins HPI high-pressure injection technology and ECM electronic closed-loop control. Integrating high-permeability solenoid valves and hard alloy precision parts, they can withstand 340-360bar opening pressure and 1800-2200bar system pressure, fit 760-950 HP, widely used in extreme heavy-duty scenarios.
Relying on 24V solenoid valves to achieve millisecond-level precise control (≤0.28ms), these injectors have uniform and delicate atomization, which can effectively optimize fuel combustion efficiency, reduce carbon deposits and exhaust emissions, meeting Tier3/4 emission standards. Complying with C-ummins original standards, ISO 9001 and TS16949, fully tested before leaving the factory, they are easy to install and maintain for stable long-term operation.
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