Ford Authority

Ford 2.5L Duratec 25 Engine (Four-Cylinder)

The Duratec 25, also known as the Mazda L engine, is a 2.5-liter naturally aspirated four-cylinder from Ford Motor used to power midsize cars, cargo vans and sport utility vehicles, also known as SUVs. Featuring a dual overhead cam (DOHC) design, in an inline configuration, the Ford Duratec 25 engine has been part of the Ford Duratec engine family since 2008, but was first introduced on the North-American market in 2009.

This engine was developed in partnership with Mazda (part of the MZR family), but under Ford ownership, which explains why it was used in a variety of different vehicle applications from one brand to the next.  Such variations also mean that a slew of different technologies were grafted onto the engine as it evolved, things like the Atkinson cycle, hybrid technology and adaptive knock control for improved fuel efficiency. The Ford Duratec 25 engine powers the following vehicles:

  • Ford Escape
  • Ford Fusion
  • Ford Transit Connect
  • Lincoln MKZ


Engine familyDuratec
Displacement2.5 liters
Configuration & cylindersInline configuration, four cylinders
Vehicle engine orientationTransverse
Valve configurationDual-overhead cam (DOHC)
Assembly sitesDearborn, Michigan, USA / Chihuahua, Mexico / Hiroshima, Japan
PredecessorMazda F engine
SuccessorFord EcoBoost
Bore89 mm
Stroke100 mm
Compression ratio9.7:1
Max power @ RPM175 hp @ 6,000 rpm
Max torque @ RPM172 lb-ft @ 4,500 rpm
Cylinder headAluminum
Cylinder blockAluminum
Camshaft driveChain
VehicleTransmissionDrive WheelsPower@ RPMTorque (lb-ft) @ RPM
Ford Escape (2009 - 2019)Six-speed automaticFWD / AWD170 @ 6,000 167 @ 4,000
Ford Fusion (2010 - 2013)Six-speed manual / Six-speed automaticFWD175 @ 6,000 172 @ 4,500
Ford Fusion Hybrid (2010 - 2013)Continously variable automatic (CVT)FWD156 @ 5,550 (191 hp combined)136 @ 4,000
Ford Fusion (2013 - 2019)Six-speed automaticFWD175 @ 6,000 175 @ 4,500
Ford Transit Connect (2014 - 2018)Six-speed automaticFWD169 @ 6,000 171 @ 4,500
Lincoln MKZ Hybrid (2011)Continously variable automatic (CVT)FWD156 @ 5,550 (191 hp combined)136 @ 4,000
Mercury Milan (2010 - 2013)Six-speed automaticFWD175 @ 6,000 172 @ 4,500
Mercury Milan Hybrid (2010 - 2011)Continuously variable automatic (CVT)FWD156 @ 5,550 (191 hp combined)136 @ 4,000


Discuss the Ford 2.5L Duratec engine in our Ford forum.


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