GARRETT G25-550 Standard A/R 0.92 V-Band / V-Band with wastegated 877895-5004S
- GARRETT® G SERIES COMPRESSOR AERODYNAMICS FOR MAXIMUM HP
- FULLY MACHINED SPEED SENSOR AND PRESSURE PORTS
- NEW TURBINE WHEEL AERO CONSTRUCTED OF MAR-M ALLOY RATED FOR 1055°C
- STAINLESS STEEL WASTEGATED AND NON WASTEGATED TURBINE HOUSING OPTION CAPABLE OF 1050°C
- OIL RESTRICTOR AND WATER FITTINGS INCLUDED
- WASTEGATED TURBINE HOUSINGS DO NOT INCLUDE ACTUATOR ASSEMBLY KIT.
Secure payment
Express shipping
Order support
Our privacy policy
Our Privacy Policy explains our principles when it comes to the collection, processing, and storage of your information. This policy specifically explains how we employ cookies, as well as the options you have to control them.
1 What are cookies?
Cookies are small pieces of data, stored in text files that are stored on your computer or other device when websites are loaded in a browser. They are widely used to "remember" you and your preferences, either for a single visit or for multiple repeat visits
2 How we use cookies
We use cookies for a number of different purposes. Some cookies are necessary for technical reasons; some enable a personalized experience for both visitors and registered users; and some allow the display of advertising from selected third party networks.
3 Controlling Cookies
Visitors may wish to restrict the use of cookies or completely prevent them from being set. If you disable cookies, please be aware that some of the features of our service may not function correctly
4 Information We Collect
We only collect information about you if we have a reason to do so-for example, to provide our services, to communicate with you, or to make our services better.
We are committed to maintaining the trust and confidence of our website visitors. We do not collect, sell, rent or trade email lists or any data with other companies and businesses. Have a look at our Privacy Policy page to read detail information on when and why we collect your personal information, how we use it, the limited conditions under which we may disclose it to others and how we keep it secure.
We may change Cookies and Privacy policy from time to time. This policy is effective from 24th May 2018.
GARRETT G25-550 Standard A/R 0.92 V-Band/V-Band with wastegated 877895-5004S
Garrett ® G Series Turbochargers
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.
The G-Series G25-550 and the G25-660 turbochargers are compatible with 1.4L - 3.0L engine displacements and capable of producing up to 550 and 660 horsepower. G Series 25 turbochargers are smaller and outflow all comparable products on the market.
New compressor and turbine aero combined with high temperature resistant materials allowed engineers to push the limits of performance.
A new name designates a new generation of industry leading technology and innovation.
Understanding the Name G25-550
G designates 81 years of Garrett® heritage.
25 classifies the size of the frame.
The remaining 3 digits identify the max horsepower rating of the turbocharger. (ie 550)
Compressor Aero
Forged fully-machined compressor wheel and new aerodynamics increase maximum horsepower output and boost response. The CFD (computational fluid dynamics) engineered compressor wheel increases air flow up to 15% for 60mm and 30% for 67mm with 79-80% efficiency. (Compared to GTX GenII)
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.
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 new speed sensor is easy to install and does not need to be adjusted for length like previous sensors. Simply remove and plug, then insert the speed sensor and tighten the bolt. The new speed sensor is sold separately and is not compatible with GT and GTX sensors due to the new design and sizing.
The addition of an o-ring between the compressor housing and backplate reduces the possibility of boost pressure leakage.
Center Housing
A new one-piece center housing and backplate increase durability and product safety by reducing the number of failure points associated with the turbocharger. The center housing to turbine housing v-band connection allows for 360 degree orientation when installing with Garrett® non-wastegated turbine housings.
Water Jackets
Four large water jacket ports increase cooling capacity and allow enthusiasts to customize water line routing to help improve the installation process. The turbocharger comes with two -6AN water fittings and two plugs. *Recommended to install waterlines on opposite sides of the housing.
Oil Passage
A single stage oil passage directs pressurized oil to the new oil cavity ensuring proper bearing lubrication at both sides of the cartridge.
Each turbocharger includes (1) -4AN oil restrictor fitting with a 1mm orifice to provide the turbo with the recommended 40psi of oil pressure.
Rotating Group- twin piston rings
A shorter bearing cartridge allows us to incorporate twin piston rings on both sides of the shaft wheel assembly. This will reduce the likeliness of oil leakage at the seals from the center housing to the compressor and or turbine stage.
Turbine Wheel Aero
The turbine wheel features all new aerodynamics to improve flow and boost response. The new turbine wheel is made of Mar-M super alloy and is capable of handling exhaust gas temperatures up to 1050 degrees C.
The new turbine wheel flows 15-20% more than GTX and has peak efficiency of 74%.
WARNING: Dear customer - G series turbochargers are highly efficient units that don't require a high boost for reaching its limits. Please pay attention that maximum allowable turbocharger speed is 165krpm ( G series ) . The use of this product above max turbocharger speed is at the owner’s risk, and can result in damage and premature failure. To protect the turbocharger from overspeed when operating a speed sensor, part numbers 781328-0004 (single speed sensor that should be connected) or GARRETT G-SMART MODULE ( Module | Harness | Flange Speed Sensor G-Series ) must be fitted and monitored during fine and tune as well as with use of the unit. Missing of the sensors or RPM data will void warranty on product.