Garrett 858161-5002S Supercore G-Series G25-550, Trim 65

Garrett G25-550 supercore — a balanced core assembly (centre cartridge with compressor cover and back plate) for building or rebuilding G-Series turbochargers.

The GARRETT 858161-5002S Super Core turbocharger is a G25-550 unit supplied without a turbine housing, designed with the latest advancements in turbocharging technology.

Featuring a CFD-optimized, forged milled compressor wheel, it achieves maximum efficiency and airflow capacity in a compact package.

A high-flow compressor housing is equipped with an integrated speed sensor port for advanced monitoring.

The dual ceramic ball bearing cartridge enhances durability and reduces friction for rapid spool response.

Specifications

• Frame: G25
• Bearing: ceramic ball bearing
• Rotation: standard
• Compressor wheel: 48 mm inducer, 60 mm exducer, 65 trim, 0.7 A/R
• Turbine wheel: 54 mm inducer, 49 mm exducer, 84 trim
• Turbine wheel material: MAR-M alloy
• Power: up to 550 HP
• Displacement: 1.4-3.0 L

Features

• CFD-optimized forged milled compressor wheel for maximum efficiency
• High-flow compressor housing with integrated speed sensor port
• Standard rotation configuration
• Dual ceramic ball bearing cartridges for rapid response and durability
• Supplied with -4AN oil restrictor fitting with 1 mm orifice
• Four large water jacket ports for optimized cooling
• Turbine wheel constructed of MAR-M alloy rated to 1055 °C
• Water- and oil-cooled system for stability under high loads