Garrett 801900-5008S GTB3782B Turbocharger Assembly

The Garrett GTB3782B is a journal-bearing, oil-cooled turbocharger assembly designed for Caterpillar C9, C9.3, and C4.4 industrial diesel engines. It features a variable geometry turbine (VGT) mechanism actuated by an electronic actuator for precise boost control across the operating range. The unit serves as a direct OEM replacement for Caterpillar part numbers 376-3795, 393-7768, 424-3429, and 20R-3861. Manufactured by Honeywell Garrett Advancing Motion, this turbocharger utilizes the GT37 frame series compressor and turbine wheels. The center housing rotating assembly (CHRA) references part number 763286-0069. Applications span Caterpillar 336E series hydraulic excavators, D6T and D7E track-type tractors, 627H wheel tractor-scrapers, 966K and 972K wheel loaders, and 160M/140M/12M motor graders. The assembly includes the compressor housing, turbine housing, CHRA, and integrated VGT actuator.