Bosch original Diesel Common Rail Fuel Injector 0445120029 3973060 4940170 3965721, replacement spare parts for common rail injector applications original new injector
Bosch diesel common rail injector
,0445120029 replacement fuel injector
,original new common rail injector
Bosch original Diesel Common Rail Fuel Injector 0445120029 3973060 4940170 3965721, replacement spare parts for common rail injector applications original new injector
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Fuel Type |
Diesel |
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Condition |
Original new, remanufactured, replacement and exchange options |
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Applicable Engine |
Cummins QSL9, QSL 8.9, ISLe 8.9L and Cummins 8.9 diesel engines |
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Injector Type |
BOSCH 120 Series CRIN common rail diesel fuel injector |
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Quality Standard |
BOSCH original; OE-style replacement compatibility |
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Packaging |
Sealed, dry, dust-free packaging for storage |
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Fuel System |
High-pressure common rail |
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OE Number |
Main number: 0445120029 / 0 445 120 029; OE references: 3965721, 3973060, 4939061, 4940170, 5263308, 84346812, 1077550420, 6745-12-3100 |
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Brand |
BOSCH |
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Cross Number / Universal Number |
0445120125 / 0 445 120 125; 0445120236 / 0 445 120 236; 0986435554 / 0 986 435 554 (exchange number) |
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Vehicle / Equipment Application |
Case and Komatsu equipment; construction machinery, industrial engines, power generation units, mining machinery and agricultural equipment |
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Application Type |
Industrial, construction, mining, agricultural, generator and heavy-duty vehicle markets |
The BOSCH 0445120029, also marked 0 445 120 029, is a 120 Series CRIN common rail diesel injector intended for high-pressure fuel delivery and precise atomization. Its BOSCH 120 Series structure, precision nozzle spray pattern and durable internal components support accurate fuel metering, stable combustion and reliable operation. The design is associated with Cummins QSL9, QSL 8.9, ISLe 8.9L and Cummins 8.9 diesel engines, with Case and Komatsu equipment also covered by the documented application range.
For sourcing and cross-reference work, the injector can be matched against BOSCH numbers 0445120125 and 0445120236, while 0986435554 is listed as an exchange number. Documented OE references include 3965721, 3973060, 4939061, 4940170, 5263308, 84346812, 1077550420 and 6745-12-3100. These references help distributors, workshops and equipment owners align BOSCH, Cummins, Case, Komatsu and aftermarket catalog listings.
The injector receives high-pressure diesel from the rail, with ECU-controlled valve operation allowing the needle to lift and deliver fuel into the combustion chamber. Injection quantity, timing, spray pattern and atomization influence power, starting, smoke, fuel economy and emissions. It is suited to construction, industrial, power-generation, mining, agricultural and heavy-duty diesel service markets. Before ordering or installation, confirm the injector body number, OE number, engine model and serial numbers, connector type and equipment application; use clean fuel and replace installation seals as required.
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Bosch original Diesel Common Rail Fuel Injector 0445120029 3973060 4940170 3965721, replacement spare parts for common rail injector applications original new injector Fuel Type Diesel Condition Original new, remanufactured, replacement and exchange options Applicable Engine Cummins QSL9, QSL 8.9, ...