GARRETT G SERIES
THE ALL NEW GARRETT G SERIES
TURBOCHARGERS
Garrett G Series Highlights:
  • EVOLUTIONARY ULTRA HIGH FLOW G-Series Turbine Wheel
  • Advanced aerodynamics G Series Compressor Wheel
  • Compact Standard Package
  • Standard & Reverse rotation (spins counterclockwise) options
  • The Results: +20% More Horsepower & Quicker Spool!!!


  • Introducing the next evolution in performance, the Garrett G Series Turbochargers. The Garrett G Series combines the latest performance turbocharger technology and advanced aerodynamic designs. The result, is the highest horsepower small frame turbocharger!!!
    Garrett G Series Turbine Wheel: By incorporating the latest and advanced ULTA HIGH FLOW aerodynamic designs within the Garrett G Series Turbine Wheel, G Series models offer previously unimagineable power levels by frame size and improvements in spool! Made from Mar-M super alloy, the G Series Turbine Wheel withstands up-to 1050 degrees Celsius; +200 degrees Celsius over inconel turbine wheels.
    Garrett G Series Compressor Wheel: Forged fully-machined compressor wheel and new aerodynamics design increases maximum horsepower output, up to +30%. The G-Series aero design not only increases peak flow but higher power levels within a large operating RPM range.
    Garrett G Series Turbine Housings: Standard Garrett Stainless Steel material. V-band CHRA to Turbine Housing interface for a full 360 degree rotation. Available in T25 and V-Band inlet options; and internal or external wastegate configurations. Additional turbine housing options coming soon!
    Garrett G Series Additional Features:
  • Includes oil feed and coolant fittings.
  • Reduced size bearing cartridge and twin piston rings on both sides of the wheel assembly for increased durability and reduction in oil leakage.
  • Pre-tapped speed sensor port and boost pressure signal port.
  • NEW compact design bearing housing and CHRA to Turbine Housing V-band Connection.
  • NEW and improved oiling and cooling system.
  • Garrett G Series Models: The Garrett G series is available in G25-550 and G25-660 models, including standard and reverse rotation. ADDITIONAL MODELS COMING SOON!!!
    Garrett G Series Models:
    Turbo
    Model
    Comp.
    Wheel
    Inducer
    (mm)
    Comp.
    Wheel
    Exducer
    (mm)
    Comp.
    Wheel
    Trim
    Turbine
    Wheel
    Inducer
    (mm)
    Turbine
    Wheel
    Exducer
    (mm)
    Turbine
    Wheel
    Trim
    Bearing
    Type
    Flow
    Capacity
    G25-550 48 60 65 54 49 84 BB 550
    HP
    G25-550 Flow Maps      G25-550 Dimensional Drawings
    G25-660 54 67 65 54 49 84 BB 660
    HP
    G25-660 Flow Maps      G25-660 Dimensional Drawings
    Garrett G Series
    Reverse Rotation Models:
    Turbo
    Model
    Comp.
    Wheel
    Inducer
    (mm)
    Comp.
    Wheel
    Exducer
    (mm)
    Comp.
    Wheel
    Trim
    Turbine
    Wheel
    Inducer
    (mm)
    Turbine
    Wheel
    Exducer
    (mm)
    Turbine
    Wheel
    Trim
    Bearing
    Type
    Flow
    Capacity
    G25-550 RR 48 60 65 54 49 84 BB 550
    HP
    G25-550 Flow Maps      G25-550 Dimensional Drawings
    G25-660 RR 54 67 65 54 49 84 BB 660
    HP
    G25-660 Flow Maps      G25-660 Dimensional Drawings