Holset 4043976 Turbocharger Assembly HE221W

The Holset HE221W is a fixed geometry turbocharger with internal wastegate designed for the Cummins ISDE4 4.5L diesel engine platform. It utilizes a 6+6 split blade compressor wheel with a 43.5 mm inducer and 61 mm exducer diameter. The turbine housing features a T25 flange with available A/R ratios of 5.5 cm2 and 7 cm2. The unit is oil-cooled with an M10 x 1.25 mm oil inlet thread. This assembly serves as direct OEM replacement for Dongfeng Cummins (DCEC) and Perkins Remus ISDE4 engine applications in heavy-duty trucks and construction machinery. Primary manufacturer part numbers include 2835142, 4043976, 4955962, and 4033968. Cross-reference interchange numbers cover 4047745, 4047746, 2834301, 3782369, and 4043587. The turbocharger weighs approximately 6.4 kg and is manufactured to ISO9001 and TS16949 quality standards.