Garrett 860778-5004S G42-1200 Super Core Turbocharger Performance

Vehicle Fitment

• Universal turbocharger - no specific year/make/model fitment

Features

• G42-1200 Super Core turbocharger design for high-performance builds
• CFD-optimized forged compressor wheel for efficient airflow
• Standard (clockwise) rotation configuration
• Dual ceramic ball bearing cartridge for faster spool and durability
• Water- and oil-cooled center housing for thermal stability
• Fully machined speed sensor and pressure ports
• External wastegate ready with robust housing interfaces
• Compatible with custom turbine and compressor housings

Specifications

• Part Number: 860778-5004S
• Turbo Type: G42-1200 Super Core
• Horsepower Range: 475-1200 HP
• Recommended Displacement: 2.0 L-7.0 L engines
• Compressor Inducer: 73 mm
• Compressor Exducer: 91 mm
• Compressor Trim: 65
• Compressor A/R: 0.85
• Turbine Inducer: 82 mm
• Turbine Exducer: 75 mm
• Turbine Trim: 84
• Cooling: Oil & water-cooled center housing

Included Components

• 1x Garrett G42-1200 Super Core (CHRA only)
• 2x Water fitting adapters (-6AN)
• Various port caps and plugs

Product Description

The Garrett 860778-5004S is a high-performance G42-1200 Super Core turbocharger designed for serious custom and motorsport applications. This Super Core unit features a compact but powerful Garrett G-Series compressor with CFD-optimized aerodynamics, delivering strong airflow and responsiveness across a wide power range of approximately 475-1200 HP. Intended for use with custom housings and exhaust systems, the G42-1200 Super Core is ideal for builds where maximum performance and tailored installation are required.

Built with a dual ceramic ball bearing cartridge and water-plus-oil cooled center housing, this turbo core offers rapid spool characteristics and excellent durability under high thermal and load conditions. The fully machined speed sensor and pressure ports allow for precise monitoring when paired with aftermarket sensors. Its standard rotation design and versatile interfaces make it a flexible foundation for a wide variety of performance turbo systems.

Because the 860778-5004S is a Super Core unit without turbine and compressor housings included, professional installation and custom fabrication are required. This makes it particularly well-suited for performance shops and experienced enthusiasts building race engines, high-output street cars, or bespoke forced induction systems where space, power, and efficiency are key priorities.