King Engine Bearings MB5442XP0.25 High Performance Main Bearing Set for Mazdaspeed 3 and Mazda 3

King 07-09 Mazdaspeed 3 L3-VDT MZR DISI (t) Duratec High Performance Main Bearing Set - Size +0.25mm

The King Engine Bearings MB5442XP0.25 high performance main bearing set is designed for engine rebuilds requiring oversized main bearings. This set features a +0.25 mm oversize specification, equivalent to approximately +0.010 inch, for crankshafts machined to the corresponding journal size. It is engineered for the L3-VDT MZR DISI turbocharged Duratec engine used in select Mazdaspeed and Mazda applications.

King high performance bearings are developed to support demanding street, performance, and rebuild applications. The bearing set is manufactured for consistent fit, dependable oil control, and reliable load distribution across the main journals. Proper crankshaft measurement and confirmation of the required oversize are essential before installation. The King Engine Bearings part number MB5442XP0.25 identifies this specific high performance main bearing configuration.

Fitment includes select 2005–2007 Ford Focus models, 2004–2009 Mazda 3 models, and the 2007 Mazda 6, including applications equipped with the L3-VDT MZR DISI engine. Always verify engine code, model year, crankshaft machining specifications, and bearing clearances before purchase and assembly.

What's Included

One King Engine Bearings MB5442XP0.25 high performance main bearing set for the applicable engine configuration.

Features:

• Application: Designed for select L3-VDT MZR DISI turbocharged Duratec engines
• Bearing Type: High performance main bearing set for engine rebuild and performance applications
• Oversize Specification: +0.25 mm, approximately +0.010 inch, for properly machined crankshaft journals
• Fitment: Select 2004–2009 Mazda 3, 2007 Mazda 6, and 2005–2007 Ford Focus applications

Fitments:
2003 Ford Focus LX
2003 Ford Focus SE
2003 Ford Focus ZTS
2003 Ford Focus ZTW
2003 Ford Focus ZX3
2003 Ford Focus ZX5
2004 Ford Focus LX
2004 Ford Focus SE
2004 Ford Focus ZTS
2004 Ford Focus ZTW
2004 Ford Focus ZX3
2004 Ford Focus ZX5
2004 Mazda 3 i
2005 Ford Escape Hybrid
2005 Ford Escape XLS
2005 Ford Escape XLT
2005 Ford Escape XLT No Boundaries
2005 Ford Focus ZX3
2005 Ford Focus ZX4
2005 Ford Focus ZX4 ST
2005 Ford Focus ZX5
2005 Ford Focus ZXW
2005 Mazda 3 i
2005 Mazda Tribute i
2005 Mercury Mariner Base
2006 Ford Escape Hybrid
2006 Ford Escape XLS
2006 Ford Escape XLT
2006 Ford Focus ZX3
2006 Ford Focus ZX4
2006 Ford Focus ZX4 ST
2006 Ford Focus ZX5
2006 Ford Focus ZXW
2006 Ford Fusion S
2006 Ford Fusion SE
2006 Ford Fusion SEL
2006 Mazda 3 i
2006 Mazda 6 Mazdaspeed
2006 Mazda MX-5 Miata Base
2006 Mazda MX-5 Miata Club Spec
2006 Mazda MX-5 Miata Grand Touring
2006 Mazda MX-5 Miata Sport
2006 Mazda MX-5 Miata Touring
2006 Mazda Tribute i
2006 Mercury Mariner Convenience
2006 Mercury Mariner Hybrid
2006 Mercury Milan Base
2006 Mercury Milan Premier
2007 Ford Escape Hybrid
2007 Ford Escape XLS
2007 Ford Escape XLT
2007 Ford Focus S
2007 Ford Focus SE
2007 Ford Focus SES
2007 Ford Focus ST
2007 Ford Fusion S
2007 Ford Fusion SE
2007 Ford Fusion SEL
2007 Mazda 3 i
2007 Mazda 3 Mazdaspeed
2007 Mazda 6 Mazdaspeed
2007 Mazda CX-7 Grand Touring
2007 Mazda CX-7 Sport
2007 Mazda CX-7 Touring
2007 Mazda MX-5 Miata Grand Touring
2007 Mazda MX-5 Miata Sport
2007 Mazda MX-5 Miata SV
2007 Mazda MX-5 Miata Touring
2007 Mercury Mariner Convenience
2007 Mercury Mariner Hybrid
2007 Mercury Milan Base
2007 Mercury Milan Premier
2008 Ford Escape Hybrid
2008 Ford Escape XLS
2008 Ford Escape XLT
2008 Ford Focus S
2008 Ford Focus SE
2008 Ford Focus SES
2008 Ford Fusion S
2008 Ford Fusion SE
2008 Ford Fusion SEL
2008 Mazda 3 i
2008 Mazda 3 Mazdaspeed
2008 Mazda CX-7 Grand Touring
2008 Mazda CX-7 Sport
2008 Mazda CX-7 Touring
2008 Mazda MX-5 Miata Grand Touring
2008 Mazda MX-5 Miata Sport
2008 Mazda MX-5 Miata SV
2008 Mazda MX-5 Miata Touring
2008 Mazda Tribute Hybrid
2008 Mazda Tribute i
2008 Mercury Mariner Base
2008 Mercury Mariner Hybrid
2008 Mercury Milan Base
2008 Mercury Milan Premier
2009 Ford Focus S
2009 Ford Focus SE
2009 Ford Focus SEL
2009 Ford Focus SES
2009 Ford Fusion S
2009 Ford Fusion SE
2009 Ford Fusion SEL
2009 Mazda 3 i
2009 Mazda 3 Mazdaspeed
2009 Mazda CX-7 Grand Touring
2009 Mazda CX-7 Sport
2009 Mazda CX-7 Touring
2009 Mercury Milan Base
2009 Mercury Milan Premier
2010 Ford Focus S
2010 Ford Focus SE
2010 Ford Focus SEL
2010 Ford Focus SES
2010 Ford Transit Connect XL
2010 Ford Transit Connect XLT
2010 Mazda 3 i
2010 Mazda 3 Mazdaspeed
2010 Mazda CX-7 Grand Touring
2010 Mazda CX-7 Touring
2011 Ford Focus S
2011 Ford Focus SE
2011 Ford Focus SEL
2011 Ford Focus SES
2011 Ford Transit Connect XL
2011 Ford Transit Connect XLT
2011 Ford Transit Connect XLT Premium
2011 Mazda 3 i
2011 Mazda 3 Mazdaspeed
2011 Mazda CX-7 Grand Touring
2011 Mazda CX-7 Touring
2012 Ford Transit Connect XL
2012 Ford Transit Connect XLT
2012 Ford Transit Connect XLT Premium
2012 Mazda 3 i
2012 Mazda 3 Mazdaspeed
2012 Mazda CX-7 Grand Touring
2012 Mazda CX-7 Touring
2013 Ford Fusion SE
2013 Ford Fusion Titanium
2013 Ford Transit Connect XL
2013 Ford Transit Connect XLT
2013 Ford Transit Connect XLT Premium
2013 Jaguar XF Base
2013 Mazda 3 i
2013 Mazda 3 Mazdaspeed
2014 Ford Fusion SE
2014 Ford Fusion Titanium
2014 Jaguar XF Base
2015 Ford Edge SE
2015 Ford Edge SEL
2015 Ford Edge Titanium
2015 Ford Fusion SE
2015 Ford Fusion Titanium
2015 Jaguar XF Premium
2016 Ford Edge SE
2016 Ford Edge SEL
2016 Ford Edge Titanium
2016 Ford Fusion SE
2016 Ford Fusion Titanium
2017 Ford Edge SE
2017 Ford Edge SEL
2017 Ford Edge Titanium
2017 Ford Fusion Platinum
2017 Ford Fusion SE
2017 Ford Fusion Titanium
2017 Lincoln MKC Black Label
2017 Lincoln MKC Premiere
2017 Lincoln MKC Reserve
2017 Lincoln MKC Select
2017 Lincoln MKZ Black Label
2017 Lincoln MKZ Premiere
2017 Lincoln MKZ Reserve
2017 Lincoln MKZ Select
2018 Ford Edge SE
2018 Ford Edge SEL
2018 Ford Edge Titanium
2018 Ford Fusion Platinum
2018 Ford Fusion SE
2018 Ford Fusion Titanium
2018 Lincoln MKC Black Label
2018 Lincoln MKC Premiere
2018 Lincoln MKC Reserve
2018 Lincoln MKC Select
2018 Lincoln MKZ Black Label
2018 Lincoln MKZ Premiere
2018 Lincoln MKZ Reserve
2018 Lincoln MKZ Select
2019 Ford Fusion SE
2019 Ford Fusion SEL
2019 Ford Fusion Titanium
2019 Lincoln MKC Base
2019 Lincoln MKC Black Label
2019 Lincoln MKC Reserve
2019 Lincoln MKC Select
2019 Lincoln MKZ Base
2019 Lincoln MKZ Reserve I
2019 Lincoln MKZ Reserve II
2019 Lincoln Nautilus Base
2019 Lincoln Nautilus Black Label
2019 Lincoln Nautilus Reserve
2019 Lincoln Nautilus Select
2020 Ford Fusion SE
2020 Ford Fusion Titanium
2020 Lincoln MKZ Base
2020 Lincoln MKZ Reserve
2020 Lincoln Nautilus Base
2020 Lincoln Nautilus Black Label
2020 Lincoln Nautilus Reserve

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Unknown
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1