Rotomaster A8370104R Turbocharger

Remanufactured Turbocharger for Silverado and Sierra

Restore boost response and engine performance with the Rotomaster remanufactured turbocharger A8370104R. This direct-replacement unit is built for 2004-2005 Chevrolet Silverado 2500 HD and Silverado 3500, as well as 2004-2005 GMC Sierra 2500 HD and Sierra 3500 applications.

Rotomaster remanufactured turbochargers are engineered for OE fit and performance, with attention to the rotating assembly, journal bearings, thrust bearings, seals, and critical mating surfaces. The A8370104R is a journal-bearing, coolant-cooled turbocharger designed to meet the demands of diesel truck service while supporting fuel efficiency and drivability.

Key Features

• Remanufactured direct-replacement turbocharger for OE-style fitment
• Journal bearing design with coolant cooling method
• 100% of rotating, journal, and thrust bearings and seals replaced as required
• Wheels, shafts, and bores measured to controlled go/no-go tolerances
• Includes gaskets, washers, O-rings, syringe, instruction sheet, and adaptor
• Pre-lube syringe included for protection during installation
• Meets or exceeds OE performance targets

Product Details

Rotomaster’s remanufactured turbocharger line focuses on restoring factory-style operation for trucks that depend on consistent airflow and boost control. Part number A8370104R is built as a replacement for Chevrolet Silverado 2500 HD and Silverado 3500, plus GMC Sierra 2500 HD and Sierra 3500 models from 2004-2005. This part cross-references Chevrolet and GMC OE number 97387896 for the same application.

Each unit is remanufactured with renewed internal wear components and inspected mating surfaces to help maintain proper shaft control and sealing. For buyers searching for a remanufactured turbocharger for 2004-2005 Chevrolet Silverado 2500 HD, 2004-2005 Chevrolet Silverado 3500, 2004-2005 GMC Sierra 2500 HD, or 2004-2005 GMC Sierra 3500, A8370104R provides a direct-fit replacement option.

Common Problems This Part Can Address

• Loss of engine power or reduced boost pressure
• Oil leakage from worn turbo seals
• Excess shaft play from bearing wear
• Noise or damage caused by contaminated oil or foreign debris
• Smoke in the exhaust related to turbocharger wear or sealing issues

Installation Notes

• Replace the engine oil and filter during turbocharger service.
• Follow the installation guide to avoid voiding warranty coverage.
• Diagnose and correct the original cause of failure before installing the replacement unit.
• Inspect the air intake and exhaust system for contamination or damage.
• Use the supplied pre-lube syringe before startup to protect internal components.

Quality Assurance

Rotomaster designs and tests these remanufactured turbochargers to match OE fit and performance and to comply with federal emissions regulations. The remanufacturing process replaces critical bearings and seals and renews required passages and surfaces to support reliable operation in demanding truck applications.