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ENGINE FAMILY SPECIFICATIONBOSCH COMMON RAILTier 3 / Stage IIIA

Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L) Diesel Injector
Cross-Reference & Technical Specs

Authoritative technical specifications, verified Bosch part numbers, control valve stamping codes, nozzle spray orifices, and hold-down tightening torque for the Cummins QSL9 diesel engine family.

Primary OEMBOSCH
Control ValveF00RJ01941
Nozzle CodeDLLA118P2203
Peak Pressure1600 bar
Hold-Down Torque30 N·m
View All 5 Compatible SKUs ↓
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All Verified Part Numbers for Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)

The following 5 common-rail injector assemblies are calibrated for this engine family. Click any SKU to view individual test bench flow curves, sister cross-references, and vehicle applications.

OE Numbers: 3965721, 3973060, 4939061, 4940170, 5263308, 6745113102, 6745123100, 84346812
Control Valve: F00RJ01941Nozzle Code: DLLA118P2203
OE Numbers: 4942359, 3976631, 4930485, 5363304
Control Valve: F00RJ01941Nozzle Code: DLLA144P1707
OE Numbers: 6745113102, 6745123100, 3965721, 3973060, 4939061, 4940170, 5263308, 84346812
Control Valve: F00RJ01941Nozzle Code: DLLA118P1697
OE Numbers: 6745123100, 3965721, 3973060, 4939061, 4940170, 5263308, 84346812, 107755-0420
Control Valve: F00RJ01941Nozzle Code: DLLA118P1357
OE Numbers: 095000-5891, 095000-5892, DCRI105890, 6251-11-3200, 6251-11-3201, 6251-11-3202
Control Valve: Plate #10Nozzle Code: DLLA152P989
Part Number (SKU)Primary OE ReferenceControl ValveNozzle Code
0445120236 →
3965721, 3973060, 4939061F00RJ01941DLLA118P2203
0445120122 →
4942359, 3976631, 4930485F00RJ01941DLLA144P1707
0445120125 →
6745113102, 6745123100, 3965721F00RJ01941DLLA118P1697
0445120029 →
6745123100, 3965721, 3973060F00RJ01941DLLA118P1357
095000-5890 →
095000-5891, 095000-5892, DCRI105890Plate #10DLLA152P989
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Verified Vehicle Compatibility

Make / ManufacturerVehicle Model & PlatformEngine SpecificationModel Years
KomatsuPC300-8 / PC350-8 / WA380-6 Excavator & Wheel LoaderCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2018
CumminsQSL9 Industrial, Construction & Marine Power UnitCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2007-2018
CaseCX290B / CX350B Heavy Crawler ExcavatorCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2007-2017
CaseAxial-Flow 5088 / 6088 / 7088 Combine HarvesterCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2008-2016
DongfengKinland DFL 4251A / 4181A Tractor TruckCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2016
DongfengDFL 1250A / 1251AXA Heavy TruckCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2016
DongfengDFL 3251A / 3310AXA Heavy Dump TruckCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2016
DongfengDFZ 5251GJBA1 Concrete Mixer TruckCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2016
CumminsISLe / QSL9 Industrial & Construction EngineCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2018
KomatsuPC300-8 / PC300LC-8 Heavy Crawler ExcavatorCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2018
KomatsuPC350-8 / PC350LC-8 Heavy Crawler ExcavatorCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2018
KomatsuWA380-6 / WA430-6 Wheel LoaderCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2018
CaseCX290B / CX350B / CX370B Heavy ExcavatorCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2007-2017
CumminsQSL9 Industrial & Construction Power UnitCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2018
KomatsuPC300-8 / PC350-8 Heavy Hydraulic ExcavatorsCummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)2006-2020
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Installation, Tightening Torque & Re-torque Protocol

Strict torque compliance is mandatory on Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L) common-rail cylinder heads. Over-torquing stretches the injector body or strips the head clamping threads, while under-torquing allows combustion blow-by past the copper sealing washer:

🔧 Recommended Assembly Torques:
  • Hold-down clamp bolt: 30 N·m (cold state). Always clean the cylinder head recess with an injector seat reamer.
  • High-pressure rail flare nut: 25-30 N·m using a dedicated 17 mm line wrench.
  • Return leak-off banjo bolt: 9-12 N·m with fresh copper washers on both sides of the banjo union.
⚠️ ECU IMA Coding Requirement:

After fitting replacement injectors on Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L), generate or program the cylinder-specific IMA calibration code into the engine ECU using an OEM-level scan tool (Bosch KTS, Renault CLIP, or VAG-COM) to prevent cylinder power imbalance and rough idle.

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Technical Diagnostics FAQ for Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)

What DTC fault codes indicate a failing injector on Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L)?

The most frequent fault codes are P0201 through P0204 (Injector Circuit Malfunction on Cylinders 1-4), P2146/P2149 (Injector Group Supply Voltage Error), and P0087 (Fuel Rail Pressure Low due to excessive internal leak-off). Measure solenoid coil resistance across the pins (0.5-1.5 Ω) and perform a graduated-bottle dynamic leak-back test to pinpoint the leaking cylinder.

Can sister SKUs within the Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L) family be interchanged?

Not unless explicitly confirmed on the vehicle build plate. While sister SKUs share the same physical outer envelope and F00RJ01941 control valve, they differ in nozzle spray orifice angle and factory IMA flow calibration. Mixing sister SKUs on the same engine block can trigger rough idle, elevated exhaust gas temperatures (EGT), and MOT emissions failure.

Which specific Bosch injectors fit the Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L) engine?

The verified genuine Bosch common-rail injectors engineered for the Cummins QSL9 / ISLe 8.9L & Komatsu SAA6D114E-3 (8.9L) engine family are: