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Bosch
0445120236 Bosch CRIN1-14/16 Common Rail Injector for Cummins QSB6.7 QSL9 & Komatsu
0445120236 Bosch CRIN1-14/16 Common Rail Injector for Cummins QSB6.7 QSL9 & Komatsu
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Genuine new Bosch 0445120236 CRIN1-14/16 common rail fuel injector for Cummins QSB6.7 / QSL9 (L9 / ISL9) and Komatsu diesel engines. OE refs: Cummins 5263308 / 3973060, Komatsu 6745123100. This OEM Bosch electromagnetic (solenoid) injector delivers precise fuel metering, stable rail-pressure response, reliable cold starting and long service life in heavy-duty on-highway trucks, buses and construction/industrial diesel applications. Supplied brand-new in original Bosch packaging, made in Japan.
This injector fits selected Cummins QSB6.7 and QSL9 (L9 / ISL9) engines and Komatsu machines, and is used by Freightliner, International, Kenworth, Peterbilt and New Flyer. It is not IMA-coded — no individual injector calibration code has to be programmed into the ECU on these applications. It supersedes the earlier Bosch numbers 0445120029 and 0445120125. Always confirm compatibility by Bosch number, OE number, engine serial number, or the identification number on the original injector before ordering.
Need a full engine set? Buy the set of 6 here: 0445120236 Bosch CRIN1-14/16 injector - Set of 6.
Also known internationally as: Einspritzduse / Injektor (DE), injecteur common rail (FR), iniettore (IT), inyector (ES), injector common rail (RO) — Bosch 0445120236 for Cummins, Komatsu and L9 / ISL engines.
Key features
| Feature | Details |
|---|---|
| Product type | Bosch CRIN1-14/16 common rail electromagnetic fuel injector |
| Brand | Genuine Bosch |
| Fuel system | Bosch common rail diesel injection system |
| Application | Heavy-duty truck, bus, construction and industrial diesel engines |
| Engine compatibility | Cummins QSB6.7 / QSL9 (L9 / ISL9) and Komatsu |
| Actuator type | Electromagnetic solenoid |
| Coding | Not IMA-coded — no injector calibration code required |
| Fuel type | Diesel |
| Fitment type | Direct OEM replacement when part numbers match |
| Quality standard | Bosch OEM manufacturer quality |
| Installation | Professional installation recommended |
Product details
| Product detail | Information |
|---|---|
| Main Bosch part number | 0445120236 |
| Bosch injector family | CRIN1-14/16 |
| Superseded Bosch numbers | 0445120029, 0445120125 |
| Bosch exchange reference | 0986435522 (BX-CRIN1) |
| Product category | Common rail diesel fuel injector |
| Manufacturer | Bosch |
| Condition | Brand-new genuine Bosch OEM component supplied in original manufacturer packaging |
| Made in | Japan |
| EAN / GTIN | 4047024689145 |
| Included in package | Fuel injector (1 piece) |
| Weight | 0.62 kg |
| Package dimensions | 30 x 10 x 10 cm |
| Installation area | Engine compartment |
OEM cross-reference numbers
Compare your original part number before ordering. Vehicle or machine model alone is not enough for compatibility confirmation.
| Brand / manufacturer | Cross-reference numbers |
|---|---|
| Bosch | 0445120236, 0 445 120 236 |
| Bosch (superseded / predecessor) | 0445120029, 0445120125 |
| Bosch (exchange) | 0986435522 |
| Avtovaz | 94982023 |
| Case | 84346812; 84346812R (exchange); Case New Holland 84346812R (exchange) |
| Cummins | 3965721, 3 965 721, 3973060, 3 973 060, 4939061, 4 939 061, 4940170, 4 940 170, 5263308, 5 263 308, 5263305C; 3973060C, 5263308PX (exchange) |
| Komatsu | 6745123100; 6745123100P, RM6745123100 (exchange) |
Note: The Bosch exchange (remanufactured) reference 0986435522 and the "exchange" OE numbers above identify reman versions and are shown only to help you cross-identify your part. The injector offered here is brand-new genuine Bosch, not remanufactured.
Vehicle and machine compatibility
Compatibility must always be verified by original Bosch part number, OEM reference number, engine serial number, or injector identification number.
Cummins engine applications
| Make | Model | Displacement | Power (kW) | Year | Engine code |
|---|---|---|---|---|---|
| Cummins | — | 6.7L | 98.0 – 202.0 | 09/2006 – | QSB6.7 |
| Cummins | — | 6.7L | 103.0 – 221.0 | 09/2013 – | QSB6.7 |
| Cummins | — | 8.9L | 298 | 01/2011 – | QSL9-400 |
Truck, bus and machine applications
| Make | Model | Displacement | Power (kW) | Year | Engine code |
|---|---|---|---|---|---|
| Freightliner | M2 106 | 8.9L | — | 09/2012 – 08/2018 | ISL |
| Freightliner | M2 106 4x4 | 8.9L | — | 09/2017 – | L9 |
| International | HV607 | 8.9L | 331 | 09/2016 – | L9 |
| International | MV607 | 8.9L | 191.0 – 258.0 | 09/2017 – | L9 |
| JAC | N75 | 3.8L | 92 | 01/2021 – | ISF 3.8 |
| Kenworth | T370 | 8.9L | — | 09/2013 – 08/2023 | PX-9 |
| New Flyer | Xcelsior | 8.9L | — | 09/2014 – | ISL |
| Peterbilt | 348 | 8.9L | — | — | — |
Always confirm fitment using your original Bosch number before ordering.
Related diesel fuel system parts
The following related diesel fuel system components are commonly fitted on the same engines as this injector, depending on the engine configuration. Other part codes may also be used, so always verify the code stamped on your engine before ordering.
| Product type | Part number | Cross-references | Type formula |
|---|---|---|---|
| High-pressure injection pump (CR system) | 5594766 | Cummins: AF52152, 4921431, 4954200, 3973228, P5594766, P4921431, P4954200 | — |
| Inlet connector (injector) | F00RC00647 | Case: 84403334 Cummins: 4929864, 5346206 Komatsu: 4929864 Rambler (AMC): 68441874AA |
— |
| Fuel rail / distributor tube | 0445226025 | Cummins: 3963815 Komatsu: 3963815 VW: 2T2133319 |
CR/V6/10-23S |
Technical information
| Technical specification | Information |
|---|---|
| Injector type | CRIN1-14/16 electromagnetic common rail fuel injector |
| Actuator technology | Electromagnetic solenoid |
| Fuel system type | Bosch common rail diesel injection system |
| Application type | Heavy-duty truck, bus, construction and industrial diesel engines |
| Injector coding | Not IMA-coded — no calibration code programming required |
| Installation type | Direct OEM replacement |
| Compatibility verification | Bosch number, OE number, or engine serial number required |
Shipping and warranty
| Shipping / warranty detail | Information |
|---|---|
| Shipping | Same-day handling for stock items |
| Pre-order availability | Pre-order items may require 2-4 weeks handling time |
| Warranty | 1-year manufacturer global warranty covering manufacturing defects |
| Returns | Returns accepted only for unused and uninstalled parts in original condition |
| Fitment responsibility | Buyer must verify compatibility before installation |
| Installation damage | Damage caused by incorrect installation, contaminated fuel, or incorrect application is not covered |
Frequently asked questions
Is this a genuine Bosch fuel injector? Yes. This is a genuine Bosch OEM common rail diesel fuel injector, supplied brand-new in original Bosch packaging.
What is the main Bosch part number? The main Bosch reference number is 0445120236. It supersedes the earlier Bosch numbers 0445120029 and 0445120125. The number 0986435522 is the Bosch exchange/remanufactured reference and is shown for cross-identification only — this product is brand-new.
Is Cummins 5263308 the same injector? Yes — Cummins 5263308 and 3973060 are OE references for this Bosch 0445120236, and Komatsu 6745123100 is the Komatsu OE number.
Which engines use the Bosch 0445120236? It is used on Cummins QSB6.7 and QSL9 (L9 / ISL9) engines and Komatsu machines, in Freightliner, International, Kenworth and Peterbilt trucks and New Flyer buses.
What type of injector is the Bosch 0445120236? It is an electromagnetic solenoid common rail fuel injector from the Bosch CRIN1-14/16 family.
Does this injector need IMA coding after fitting? No. On these applications the injector is not IMA-coded, so no individual injector calibration code has to be programmed into the ECU.
Is professional installation recommended? Yes. Professional installation is recommended to ensure correct fitment, proper torque settings and a clean fuel system before and after replacement.
Do you ship worldwide? Yes, we ship worldwide.
Common symptoms and diagnostics
Hard starting, long cranking, rough idle, misfire, power loss, excessive smoke, high fuel consumption or a check-engine light on a QSB6.7 or L9 engine can point to a worn or failing common rail injector — though the high-pressure pump, rail-pressure sensor, fuel metering valve, filtration or fuel contamination can cause the same symptoms.
Before replacing, have the fuel system diagnosed professionally (rail-pressure test, injector leak-off / return test, fault-code scan, filter and fuel-quality inspection). If a previous injector or the high-pressure pump failed and released metal particles, inspect and clean the rail, lines and filter housing — fitting a new Bosch injector into a contaminated system can cause immediate repeat failure.
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