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Rotomaster M1250121N Turbocharger
| Brand | Rotomaster M1250121N |
|---|---|
| Material | Iron; aluminum |
| 11272 | Uncoated |
| 11273 | Iron gray |
| 11274 | Uncoated |
| 11275 | Gray |
| 11284 | No |
| 11285 | No |
| 11286 | No |
| 11289 | Aluminum |
| 11290 | Cast iron |
| 11291 | Aluminum |
| 11292 | Inconel |
| Mounting Hardware Included | Yes |
| Gasket Or Seal Included | Yes |
| Bearing Type | Journal |
| Actuator Included | Yes |
| E-waste | Yes |
| Exhaust Brake Included | No |
| Exhaust Manifold Included | No |
| Exhaust Outlet Od (in) | 3.227 |
| Exhaust Outlet Od (mm) | 81.97 |
| Geometry Type | Fixed |
| Mounting Bracket Included | No |
| Oil Supply Line Included | No |
| Package Contents | Turbocharger; gasket(s); studs; syringe |
| Speed Sensor Included | No |
| Temperature Sensor Included | No |
| Throttle Position Sensor Included | No |
| Turbocharger Cooling Method | Oil |
| Wastegate Type | Electronic |
| Fits | Honda · 6 vehicles |
100% new unit. Triple-balanced and quality-validated to meet or exceed OE performance.
Journal bearing design. Built for smooth, dependable turbocharger operation.
Mounting hardware included. Comes with gasket(s), studs, and actuator for easier installation.
Cross-references 189005AAA01, 189005AMA01 and 189005AMA010M3 for the same application. See all 6.
Rotomaster Turbocharger for Honda Civic
Restore boost response and factory-style turbo performance with the Rotomaster M1250121N turbocharger. This 100% new unit is built for the 2016-2021 Honda Civic and is engineered for direct replacement service with OE-level fitment details and validated balancing.
Key Features
- 100% new Rotomaster turbocharger for replacement service
- Triple balanced and quality validated for consistent operation
- Journal bearing design with oil cooling
- Electronic wastegate type
- Mounting hardware and gasket or seal included
- Actuator included
- Package contents: turbocharger, gasket(s), studs, syringe
- Material construction includes iron, aluminum, cast iron, and Inconel components
Detailed Description
The Rotomaster M1250121N is a replacement turbocharger for the 2016-2021 Honda Civic, built to meet the demands of modern turbocharged engines. It features a journal bearing center section, oil cooling, and an electronic wastegate configuration for controlled boost delivery. The unit is triple balanced and quality checked before release, helping support smooth operation and OE-style performance. This part number, M1250121N, is also referenced for service applications where precise turbocharger replacement is required on Honda Civic models.
For buyers searching for a Honda Civic turbocharger replacement, Honda Civic turbocharger assembly, or Rotomaster M1250121N for 2016-2021 Honda Civic service, this unit provides the core components needed for a proper turbo swap. It cross-references Honda part numbers 189005AAA01 and 189005AMA01 for the same application.
What It Helps Address
- Loss of boost pressure or slow turbo spool
- Excessive smoke caused by turbocharger wear
- Whining, shaft play, or internal turbo damage
- Oil leakage related to a failing turbocharger assembly
- Reduced engine performance on turbocharged Honda Civic models
Installation Notes and Tips
Fits 2016-2021 Honda Civic, N/A. Engine oil, oil filter, and intake air filter must be changed to ensure proper replacement turbo function. Refer to the installation guide in the box. Failure to follow this requirement voids warranty coverage. Confirm all oil passages are clean before installation and verify actuator and wastegate operation during setup.
Quality Assurance
Rotomaster backs this turbocharger with an industry-leading warranty and technical support for installation, troubleshooting, and diagnostics. The M1250121N is built as a new replacement unit and undergoes balancing and quality validation to support dependable service on the Honda Civic.
| Year | Make | Model | Submodel | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|
| 2021 | Honda | Civic | — | 1.5L | L4 | Engine oil, oil filter, and intake air filter MUST be changed to ensure proper replacement turbo function. Refer to installation guide in box. Failure to follow VOIDS WARRANTY |
| 2020 | Honda | Civic | Touring | 1.5L | L4 | Engine oil, oil filter, and intake air filter MUST be changed to ensure proper replacement turbo function. Refer to installation guide in box. Failure to follow VOIDS WARRANTY |
| 2019 | Honda | Civic | Sport Plus | 1.5L | L4 | Engine oil, oil filter, and intake air filter MUST be changed to ensure proper replacement turbo function. Refer to installation guide in box. Failure to follow VOIDS WARRANTY |
| 2018 | Honda | Civic | Sport Touring | 1.5L | L4 | Engine oil, oil filter, and intake air filter MUST be changed to ensure proper replacement turbo function. Refer to installation guide in box. Failure to follow VOIDS WARRANTY |
| 2017 | Honda | Civic | Turbo Plus | 1.5L | L4 | Engine oil, oil filter, and intake air filter MUST be changed to ensure proper replacement turbo function. Refer to installation guide in box. Failure to follow VOIDS WARRANTY |
| 2016 | Honda | Civic | — | 1.5L | L4 | Engine oil, oil filter, and intake air filter MUST be changed to ensure proper replacement turbo function. Refer to installation guide in box. Failure to follow VOIDS WARRANTY |
| No rows match your filter. | ||||||