095000-5450
095000-5450 Denso Komatsu PC400-8 Injector: 6271-11-3100 Specs
6271-11-3100, 6271-11-3101, 6271-11-3102, 095000-5450, 095000-5451, 095000-5452, 095000-5453, 095000-5459Plate 10# / Denso G2 Valve PlateDLLA145P8751800 barProduct Overview
The DENSO 095000-5450 is an authentic original-equipment G2 common rail diesel fuel injector engineered specifically for Komatsu SAA6D125E-5 (6-cylinder, 11.04-liter, 257 kW / 345 hp) turbocharged electronically controlled diesel engines. Meeting EPA Tier 3 and EU Stage IIIA non-road industrial emissions standards, this injector is the primary combustion component deployed across Komatsu PC400-8, PC400LC-8, PC450-8, PC450LC-8, and PC500LC-8 heavy mining crawler excavators, WA470-6 and WA480-6 heavy wheel loaders, and D65EX-16 crawler dozers. Operating at rail pressures up to 1800 bar (26,100 psi) supplied by Denso HP3/HP4 high-pressure fuel supply pumps, this injector incorporates a calibrated DLLA145P875 multi-hole nozzle (Denso part number 093400-8750) and a hardened Plate 10# electro-hydraulic spool control valve to achieve precise micro-pilot, main, and split post-injection cycles. Denso part number 095000-5450 supersedes and interchanges directly with revisions 095000-5451, 095000-5452, 095000-5453, and 095000-5459, and corresponds directly to Komatsu OEM references 6271-11-3100, 6271-11-3101, and 6271-11-3102.
CRITICAL WORKSHOP NOTICE: Always photograph or manually record the 30-digit Denso QR Compensation Code laser-etched onto the injector solenoid cap BEFORE installation. Once the injector is seated in the cylinder head, this calibration code cannot be read. Denso 095000-5450 (Komatsu OEM 6271-11-3100 / 6271-11-3101 / 6271-11-3102) is the flagship electro-hydraulic G2 common rail injector powering Komatsu SAA6D125E-5 (11.0L 6-cylinder, 257 kW / 345 hp) Tier 3 / Stage IIIA diesel engines in Komatsu PC400-8, PC450-8, and PC500LC-8 heavy mining excavators and WA470-6 / WA480-6 wheel loaders. Tighten the injector hold-down clamp bolt to 30 N·m (22 lb·ft) and the high-pressure fuel feed line nut to 30 N·m (22 lb·ft). Writing the 30-digit QR code into the engine ECM via Komatsu Service Tool / INSITE is mandatory to avoid severe idle vibration, cylinder contribution imbalances, and black smoke under heavy hydraulic breakout load.
Vehicle & Engine Fitment
| Vehicle | Engine | Years |
|---|---|---|
| Komatsu PC400-8 / PC400LC-8 Heavy Crawler Excavator | Komatsu SAA6D125E-5 Electronic Common Rail Diesel (11.0L 6-Cylinder) | 2006-2016 |
| Komatsu PC450-8 / PC450LC-8 Heavy Mining Excavator | Komatsu SAA6D125E-5 Electronic Common Rail Diesel (11.0L 6-Cylinder) | 2006-2016 |
| Komatsu PC500LC-8 Heavy Mining Excavator | Komatsu SAA6D125E-5 Electronic Common Rail Diesel (11.0L 6-Cylinder) | 2007-2016 |
| Komatsu WA470-6 / WA480-6 Heavy Wheel Loader | Komatsu SAA6D125E-5 Electronic Common Rail Diesel (11.0L 6-Cylinder) | 2006-2015 |
| Komatsu D65EX-16 / D65PX-16 Crawler Dozer | Komatsu SAA6D125E-5 Electronic Common Rail Diesel (11.0L 6-Cylinder) | 2008-2016 |
Technical Specifications
| Specification | Value |
|---|---|
| SKU | 095000-5450 |
| Brand | DENSO |
| Type | G2 Common Rail Fuel Injector |
| OE Number | 6271-11-3100, 6271-11-3101, 6271-11-3102, 095000-5450 |
| Injection System | Denso Common Rail System (CRS ECD-U2 / G2) |
| Operating PressureCore Spec | |
| Torque Spec | 30 N·m |
| Hold Down Torque | 30 N·m |
| Warranty | 12 Months |
| Emission Standard | EPA Tier 3 / EU Stage IIIA |
| Engine Family | Komatsu SAA6D125E-5 (11.0L 6-Cylinder) |
| Coding Required | Yes (Denso 30-Digit QR Compensation Code / Komatsu Service Tool) |
Installation Tips
Tools needed: Calibrated torque wrench (10-60 N·m range), Komatsu Service Tool (PC-Service Tool) or INSITE diagnostic interface, Denso QR code reader or high-resolution smartphone camera, Injector bore reamer and copper seat cleaning brush kit, Lint-free industrial cleaning swabs, Clean engine oil or assembly lubricant for O-rings, High-pressure fuel injection pipe socket (17 mm flare nut wrench), Compressed air line with rubber nozzle
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.