Global Parts 2511521 Turbocharger

Turbocharger for BMW V8 Applications

Global Parts 2511521 is a replacement turbocharger built for select BMW twin-turbo V8 applications. It uses a journal bearing design, water-cooled center housing, and a GT2256S turbocharger model configuration for direct service replacement on the listed vehicles.

Compatible With BMW 550i GT, 550i xDrive, X5, X6, 650i, 750i, and related applications across 2008-2014 model years. Global Parts 2511521 is also a fitment-based replacement for BMW 550i GT xDrive and 750Li xDrive applications where the OE turbocharger reference matches.

• Part number: 2511521
• Turbocharger model: GT2256S
• Single scroll single turbo design
• Journal bearing construction
• Water-cooled center housing
• Silicon molybdenum material with uncoated finish
• Gasket or seal included
• Vacuum + BOV wastegate/blow-off valve configuration
• Actuator start pressure: -10 kPa

Detailed Product Overview

This turbocharger is intended for BMW engines that use the GT2256S-style turbo architecture and matching OE reference numbers. The Global Parts 2511521 replacement supports right or left side installation on the listed BMW 550i, 550i GT, 550i xDrive, X5, X6, 650i, 650i xDrive, 750i, 750i xDrive, 750Li, and 750Li xDrive applications. This part cross-references Garrett 821719-5004S for the same application.

Use this turbocharger when the original unit shows shaft play, boost loss, oil contamination, bearing wear, or compressor/turbine damage. The water-cooled center housing and journal bearing layout are key service features for BMW turbocharged drivetrains that rely on stable lubrication and cooling.

Common Problems This Part Can Address

• Low boost or underboost fault codes
• Excessive smoke from turbo seal wear
• Whining, scraping, or bearing noise from the turbocharger
• Oil leakage into the intake or exhaust tract
• Loss of power and slow turbo response

Installation Notes and Tips

Fits 2010-2014 BMW 550i GT, right or left side, with new turbocharger service requirements noted for the application. Fits 2010-2014 BMW 550i GT xDrive, right or left side, with the same service note. Fits 2011-2014 BMW 550i xDrive, right or left side. Fits 2008-2014 BMW X6, right or left side. Fits 2011-2013 BMW 550i, right or left side. Fits 2011-2013 BMW X5, right or left side. Fits 2012 BMW 650i, right or left side. Fits 2012 BMW 650i xDrive, right or left side. Fits 2009-2012 BMW 750i, right or left side. Fits 2010-2012 BMW 750i xDrive, right or left side. Fits 2009-2012 BMW 750Li, right or left side. Fits 2010-2012 BMW 750Li xDrive, right or left side.

BMW turbocharger replacement on these applications requires careful oil system service. Must change engine oil prior to installation, and the oil feed and return paths should be inspected for contamination before the new unit is installed.

Quality Assurance

Global Parts 2511521 is built as a regular-grade replacement turbocharger with a gasket or seal included for service preparation. The part is supplied uncoated and without mounting hardware or a mounting bracket, so verify all related components before beginning the repair.