Mazda MZR engine
Turbocharged MZR engine in a 2006 Mazdaspeed6
Overview
Manufacturer	Mazda Ford Motor Company
Also called	MZR Z MZR L Mazda R Duratec EcoBoost
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	Mazda B engine Mazda F engine Ford Zetec engine Ford CVH engine
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 1.3L to 2.5L.

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.

Variants

There are three specific engine families within the MZR which include:

1. the small 1.3L to 1.6L Mazda Z engine
2. the mid-sized 1.8L to 2.5L Mazda L engine
3. the 2.0L and 2.2L common-rail diesel Mazda R-engine

The DISI turbocharged MZR L3-VDT was on the Ward's 10 Best Engines list for 3 consecutive years for 2006, 2007 and 2008.

Licensed to Ford

The Ford Motor Company co-developed the engines with Mazda during the period where Ford owned a controlling share in Mazda. Ford retains perpetual rights to build and use the MZR generation of engines. Ford has sold the MZR engine under their Duratec brand name for global service in its vehicles since 2003.

Discontinued

As of 2011, Mazda discontinued development of the MZR generation of engines and began to replace it with their SkyActiv generation of engines.

Applications:

• 2005-2015 Mazda Roadster/Miata/MX-5
• 2003-2013 Mazda3
• 2003-2013 Mazda6