Rotomaster M8040177R Turbocharger

Remanufactured Turbocharger for BMW 2.0L Applications

Restore boost response and factory-style drivability with the Rotomaster remanufactured turbocharger, part number M8040177R. This direct-replacement unit is built for BMW turbocharged applications and is engineered to meet O.E. fit and performance requirements.

Rotomaster’s remanufactured turbocharger line focuses on dependable replacement for BMW 320i, 328i, 428i, X1, X3, X4, X5, and Z4 applications. Part number M8040177R is designed for drivers who need a journal-bearing turbocharger with coolant cooling and an included wastegate actuator.

Key Features

• Remanufactured turbocharger with journal bearing design
• Meets or exceeds O.E. performance targets
• 100% of rotating, journal, and thrust bearings and seals are replaced
• Mating surfaces and passages are renewed as required
• Wheels, shafts, and bores are measured to controlled go/no-go tolerances
• Includes gaskets, pre-lube syringe, and instruction sheet
• Wastegate actuator included
• Coolant-cooled turbocharger construction

Detailed Description

The Rotomaster M8040177R remanufactured turbocharger is a direct-fit replacement for a wide range of BMW turbo applications. It is built to restore proper airflow, boost control, and engine response while maintaining O.E.-style fitment. This turbocharger uses a journal bearing setup and is remanufactured with renewed bearings, seals, and critical mating surfaces to support reliable operation.

For BMW 320i, 328i, 428i, X1, X3, X4, X5, and Z4 models, this turbocharger provides a practical replacement when the original unit shows wear, oil leakage, or reduced boost. Part number M8040177R is also cross-referenced to BMW 11657642469 for the same application.

What It Can Help Fix

• Loss of engine power or slow turbo spool
• Oil leakage from worn turbo seals
• Boost control issues caused by worn internal components
• Noise or vibration from bearing wear
• Damage related to contaminated oil or foreign object ingestion

Installation Notes and Tips

• Fits 2012-2018 BMW 320i, N/A
• Fits 2013-2018 BMW 320i xDrive, N/A
• Fits 2013-2018 BMW X3, N/A
• Fits 2015-2018 BMW X4, N/A
• Fits 2016-2017 BMW X5, N/A
• Fits 2014-2016 BMW 228i, N/A
• Fits 2015-2016 BMW 228i xDrive, N/A
• Fits 2013-2016 BMW 328i, N/A
• Fits 2016 BMW 328i GT xDrive, N/A
• Fits 2016 BMW 328i xDrive, N/A
• Fits 2014-2016 BMW 428i, N/A
• Fits 2016 BMW 428i Gran Coupe, N/A
• Fits 2016 BMW 428i xDrive, N/A
• Fits 2016 BMW 428i xDrive Gran Coupe, N/A
• Fits 2013-2016 BMW 528i, N/A
• Fits 2013-2016 BMW 528i xDrive, N/A
• Fits 2014-2016 BMW Z4, N/A
• Fits 2013-2015 BMW X1, N/A
• Fits 2018 BMW X5, N/A
• Before installation, diagnose and correct the original cause of turbo failure.
• Replace engine oil, oil filter, and intake air filter where required by the fitment notes.
• Use the supplied pre-lube syringe during installation to protect the turbocharger.
• Check the air intake and exhaust system for contamination or damage before startup.

Quality Assurance

Rotomaster remanufactured turbochargers are designed and tested to match O.E. fit and performance and to comply with federal emissions regulations. The remanufacturing process replaces all rotating, journal, and thrust bearings and seals, with additional renewal of mating surfaces and passages as needed for consistent operation.

Common turbocharger failures are often linked to oil starvation, contaminated oil, or foreign debris in the airflow. Rotomaster includes installation guidance and required service parts in the package to support proper replacement on BMW turbocharger applications.