Garrett 877895-5001S Turbocharger G-Series G25-550, 0.49 A/R, Wastegated

Garrett G25-550 performance turbocharger with a wastegated T25 turbine housing.

Introducing performance out of a package you never thought possible. This clean sheet product is tailored to meet the demands of hard core racing enthusiasts while providing industry leading power capability in a small package.

New compressor and turbine aero combined with high temperature resistant materials allowed engineers to push the limits of performance.

Wide compressor maps indicate a larger operating range to support a variety of vehicle setups.

The compressor housing features a fully machined ported shroud to help reduce compressor surge.

Specifications

• Frame: G25
• Bearing: 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, 0.49 A/R
• Turbine wheel material: MAR-M alloy
• Max shaft speed: 165 krpm
• Turbine housing flange: T25 / V-Band
• Wastegate: internal (wastegated housing)
• Power: up to 550 HP
• Displacement: 1.4-3.0 L

Fits & compatible parts

• Compatible turbochargers: G25-660
• Related & compatible part numbers: 781328-0004

Features

• Fully machined speed-sensor and pressure ports
• Turbine wheel constructed of MAR-M alloy rated to 1055 °C
• Oil restrictor and water fittings included
• Wastegated turbine housings do not include the actuator assembly kit
• A fully machined speed sensor port provides enthusiasts the option to add the new G Series speed sensor to measure turbocharger shaft speed, a key factor in determining ideal operating conditions
• The addition of an o-ring between the compressor housing and backplate reduces the possibility of boost pressure leakage
• Center Housing
• A single stage oil passage directs pressurized oil to the new oil cavity ensuring proper bearing lubrication at both sides of the cartridge