 | This article relies largely or entirely on a single source. (November 2018) |
| Mazda MZR engine | |
|---|---|
 Turbocharged MZR engine in a 2006 Mazdaspeed6 | |
| Overview | |
| Manufacturer | Mazda Ford Motor Company |
| Also called | |
| Production | 2001–2015 (Mazda) 2003-present (Ford) |
| Layout | |
| Configuration | Inline-four |
| Displacement | 1,998 cc (121.9 cu in) |
| Cylinder bore | 90 mm (3.5 in) |
| Piston stroke | 78.5 mm (3.09 in) |
| Cylinder block material | Aluminum |
| Cylinder head material | Aluminum |
| Valvetrain | DOHC |
| Combustion | |
| Fuel type | Gasoline Diesel |
| Chronology | |
| Predecessor | |
| Successor | SkyActiv |
MZR is the brand name of a generation of Inline-four engines engineered and built by the Mazda Motor Corporation from 2001 to the present. MZR stands for "MaZda Responsive". The MZR generation includes gasoline and diesel powered engines ranging in displacements from 1.3 L to 2.5 L.
All gasoline-powered MZR engines feature an all-aluminum block construction with iron cylinder liners. The diesel MZR-CD engines use a cast-iron block (virtually identical to the Mazda F engine) and an aluminum cylinder head.