Rotomaster M1030257N Turbocharger Cartridge - Front

Rotomaster New Turbocharger Cartridge M1030257N

Rotomaster M1030257N is a new turbocharger cartridge for BMW turbo applications where the core turbo components need replacement without changing the full assembly. It uses journal bearing construction with coolant cooling and O.E.-grade components for a direct replacement approach on select BMW 135i, 335i, 535i, Z4, and related models.

The Rotomaster New Turbocharger Cartridge line focuses on restoring the internal cartridge section while allowing reuse of the original compressor and turbine housings. That makes it a practical option for BMW owners and technicians looking for a turbocharger cartridge replacement for 2007-2016 BMW 335i, 2008-2010 BMW 135i, or 2009-2016 BMW Z4 front applications.

Key Features

• Journal bearing turbocharger cartridge with coolant cooling
• Direct O.E. replacement for select BMW turbocharger applications
• Allows reuse of the original compressor and turbine housings
• Eliminates the need to replace the entire turbocharger assembly
• Supplied with O.E.-grade components for durability
• Allows turbocharger replacement without balancing the full unit
• New part condition

Detailed Description

When a turbocharger problem is isolated to the cartridge, replacing the cartridge can restore the core of the turbo assembly while preserving the remaining housings. Rotomaster M1030257N is built as a standard-grade, new turbocharger cartridge with journal bearings and coolant cooling, using O.E.-grade components to support consistent operation and long service life. This Rotomaster New Turbocharger Cartridge is a direct replacement for the original cartridge design and is intended for BMW turbocharger service where the housings remain usable.

This part cross-references BMW 11657649289 for the same application. It is a strong fitment match for BMW 335i turbocharger cartridge replacement, BMW 535i front turbo service, and BMW Z4 front turbo repair work across the listed model years.

What It Helps Address

• Turbocharger noise or wear traced to the cartridge section
• Loss of boost caused by internal turbo component failure
• Need to reuse existing compressor and turbine housings
• Repair jobs where replacing the full turbocharger is unnecessary
• Service time reduction on select BMW turbo repairs

Installation Notes and Tips

• Confirm the vehicle application by year, model, and front position before ordering.
• Inspect the compressor and turbine housings for damage before reassembly.
• Follow proper turbo oiling and coolant service procedures during installation.
• Verify all related intake, charge-air, and exhaust connections are clean and secure.
• Consult a sales representative for Turbocharger Cartridge special order availability.

Quality Assurance

Rotomaster assembles this cartridge with O.E.-grade components for durability and consistent performance. The M1030257N is a new turbocharger cartridge built for direct replacement service on the listed BMW applications.

• Fits 2009-2016 BMW Z4, front
• Fits 2011-2013 BMW 335is, front
• Fits 2011 BMW 1 Series M, front
• Fits 2008-2010 BMW 135i, front
• Fits 2007-2010 BMW 335i, front
• Fits 2009-2010 BMW 335i xDrive, front
• Fits 2008-2010 BMW 535i, front
• Fits 2010 BMW 535i GT, front
• Fits 2009-2010 BMW 535i xDrive, front
• Fits 2007-2008 BMW 335xi, front
• Fits 2008 BMW 535xi, front