Garrett 934075-5001S G25-585 G-Series II Supercore Universal 48 mm

Vehicle Fitment

• Universal - intended for custom turbo builds with 1.4 L to 3.0 L engines

Fitment Notes

• Not direct-bolt to any OEM application; requires matching manifold, oil/water plumbing, and tuning
• Configured for standard rotation (clockwise) supercore
• Supports both external and internal wastegate setups depending on housing configuration
• Requires correct V-band / flange interfaces and proper size couplings

Features

• Part of Garrett G-Series II with improved compressor aerodynamics (≈10 % better peak flow) 
• Rated for ~300-585 HP output in well-matched builds 
• 48 mm compressor inducer with 60 mm exducer sizing 
• Improved efficiency and high-flow capability under boosted conditions 
• Dual cooling (oil and water) for robust thermal management 
• Mar-M alloy turbine wheel capable of high temperatures (≈ 1050 °C) 
• Compatibility path with Gen I turbo housings via CHRA upgrade 
• Compressor housing includes ports / fittings for oil & coolant and speed sensor readiness
• Compact supercore design for flexibility in tight engine bays 

Specifications

• Compressor Wheel: 48 mm inducer / 60 mm exducer
• Compressor Trim / A/R: ~65 / 0.70 (0.70 A/R profile) 
• Turbine Wheel: 54 mm inducer / 49 mm exducer, trim ~84
• Horsepower Range: 300-585 HP (when installed appropriately) 
• Rotation: Standard (clockwise) 
• Cooling Method: Dual (oil + water) 
• Wastegate Compatibility: Internal or external (depending on housing) 
• Flanges: V-band / standard turbo flange interfaces (housing-dependent)
• Material / Thermal Limit: Mar-M turbine, rated up to ~1050 °C

Included Components

• 1x Garrett G-Series II G25-585 supercore (standard-rotation) 
• 1x Preassembled compressor housing with sensor port(s) 
• 1x Turbine wheel and shaft assembly (preinstalled) 
• 1x Oil-coolant feed/drain fitting set (standard provision) 

Product Description

The **Garrett 934075-5001S** G25-585 G-Series II Supercore is engineered for high-performance forced induction projects targeting power levels between 300 and 585 horsepower. As part of Garrett's Gen II evolution, it offers up to a 10% improvement in compressor flow over the first generation, lending enhanced efficiency and better performance across its operational range. 

Its compressor features a 48 mm inducer and 60 mm exducer design, with a trim of ~65 and a 0.70 A/R housing. On the turbine side, the wheel is 54 mm inducer / 49 mm exducer (trim ~84). The unit supports both oil and water cooling to maintain thermal stability under high boost and sustained use. The supercore architecture allows for modular housing selection (internal or external wastegate), and compatibility with many Gen I housings via CHRA upgrade paths.

Because this is a universal performance turbo component, installation is not plug-and-play. You'll need proper matching of manifolds, flange adapters, oil/coolant plumbing, and precise tuning. It is favored by custom builders and engine tuners who demand flexibility, durability, and high-performance headroom in their turbo systems.