Cummins original 4088427 Common Rail Fuel Injectors Replacement for OEM Injector Assembly for QSK23 QSK45 QSK60 Diesel Engines Compatible with 3766446 4001813 4076533 original new injector

Engineered for demanding heavy-duty operation, the 4088427 fuel injector is a direct fit for the Cummins QSK23, a 23 L inline 6-cylinder, 4-cycle diesel engine. This platform is rated at 760–1050 hp and 2558–2897 lb-ft torque in mining configurations, while QSK23 generator sets deliver 545–725 kW prime and 600–800 kW standby power. Built for the Modular Common Rail System (MCRS), the injector is also applicable to QSK45 and QSK60 engines, giving diesel workshops and rebuilders broad platform coverage from a single reference.

This injector delivers precision fuel metering and controlled atomization for stable combustion, lower fuel consumption and reliable cold and hot starting. Cross-referenced against numbers including 4088428, 4326781, 4001813, 4087893, 4087894 and 4002145, it supports fast global part-number searchability and workshop verification using the old injector number, engine serial number, CPL and injector photo. Full-set purchasing is available, since each inline 6-cylinder engine uses six injectors.

Widely applied in mining, oil and gas, rail, construction and commercial power generation, this part serves diesel repair shops, engine rebuilders, heavy equipment maintenance companies, mining contractors, generator service providers, oilfield service firms and diesel parts wholesalers worldwide. To maximize service life, use clean fuel, replace filters on schedule, drain the water separator and monitor fuel return flow to reduce equipment downtime.