Cummins original 4087889 Fuel Injector Pump Fits QSK45 QSK60 QSK19 K19 KTA19 Diesel Engines for Construction Machinery Cross Ref Parts 4010025 4928347 4087886 original new injector
Product Details
Cummins original 4087889 Fuel Injector Pump Fits QSK45 QSK60 QSK19 K19 KTA19 Diesel Engines for Construction Machinery Cross Ref Parts 4010025 4928347 4087886 original new injector
Fuel Type | Diesel |
Condition | New Replacement Part |
Applicable Engine | Cummins QSK23 (23L inline 6-cylinder, 4-cycle, 170 mm bore x 170 mm stroke, turbocharged / charge-air-cooled); related families QSK19, K19, QSK45, QSK60 |
Injector Type | Heavy-Duty Diesel Fuel Injector |
Quality Standard | OE Replacement Reference Standard |
Packaging | Standard industrial protective packaging |
Fuel System | Cummins QSK23 Diesel Fuel Injection System |
OE Number | 4087889 |
Brand | Cummins |
Cross Number / Universal Number | 4902828, 4326781, 4088431, 4076533, 4002145, 4087894, 4088428, 4087888, 4087893, 4088427, 4326780 |
Vehicle / Equipment Application | Oil and gas, mining, generator, rail, commercial power, construction and industrial equipment |
Application Type | Heavy Duty Industrial Engine Injector |
Built for the demanding duty cycles of Cummins QSK23 platforms, this diesel fuel injector 4087889 delivers precision fuel metering and controlled atomization inside the combustion chamber to maintain rated power, smooth idle and efficient combustion. Engineered for the 23L inline 6-cylinder heavy-duty engine, it supports oil and gas, mining, generator, rail, commercial power, construction and industrial equipment where uptime and reliability are critical. A full engine set normally uses 6 injectors.
Strong cross-reference coverage makes this part easy to source and verify in professional workshops. The primary OE number 4087889 is supported by replacement references 4902828, 4326781, 4088431 and 4076533, giving diesel repair shops, engine rebuilders, mining contractors, generator service providers and diesel parts wholesalers reliable global search value. Related engine families include QSK19, K19, QSK45 and QSK60.
Proper installation requires confirming the old injector number, engine serial number, CPL and equipment model, ensuring a clean injector bore and fuel system, and following official Cummins service manual torque values. Use clean fuel, replace filters on schedule and drain the water separator to extend service life. This injector helps address hard starting, rough idle, black smoke, low power and misfire, reducing costly downtime across global B2B markets.
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