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06 Outback 2.5i NA EJ253, HG Shopping - 11044AA642 vs 11044AA770?

25K views 33 replies 11 participants last post by  Coreytownsend 
You are going to want to go with the 642 gasket for your 06' Outback.

The main differences between the 2 are the location of the coolant passage openings and their shape.
All '06 + EJ255 (WRX) uses the new HG. All '07+ EJ257 (STi) uses the new HG.
They also of course revised their cylinder head to match the the new openings. (chicken / egg)

The 642 gasket lines up these openings much more in line with what your cylinder head needs vs the 770 gasket does.

770 details:
Gasket - https://parts.subaru.com/p/Subaru__/GASKET-CYLINDER-HEAD/49223398/11044AA770.html

Head -

Gasket on Head -


642 details:
Gasket - https://parts.subaru.com/p/Subaru__/GASKET-CYLINDER-HEAD/49223394/11044AA642.html

Head -
 
great post.

and is the 642 your choice today on the 2000-2004 EJ251/EJ252, rare 2004 EJ259, and 2005 EJ253 engines?

edit: and I guess poor EJ25D 1996-99.
Yes.

Though I would have to check on the DOHC EJ25D, I can't remember off hand what MLS gaskets I use on those.
 
@ntippetWhat year Outback engine would you want to use the 770? Only the engines it comes stock with, correct? (ie 2010+ EJ25's)
Outback, Forester XT's, WRX, Sti, Newer Legacy and Outbacks

Full list for the 770:
Subaru Forester 2.5L TURBO 4AT XT 2009, 2010, 2011, 2012, 2013
Subaru Forester 2.5L TURBO 4AT XT Limited 2009, 2010
Subaru Forester 2.5L TURBO 4AT XT Touring Limited Plus 2011, 2012, 2013
Subaru Forester 2.5L TURBO AT XT Sports 2006, 2007, 2008
Subaru Forester 2.5L TURBO MT XT Sports 2006, 2007, 2008
Subaru Impreza 2.5L TURBO 5MT 4WD WRX Sedan 2006
Subaru Impreza 2.5L TURBO 5MT 4WD WRX TR Sedan 2006
Subaru Impreza 2.5L TURBO 5MT 4WD WRX Wagon 2006
Subaru Impreza 2.5L TURBO AT 4WD WRX Sedan 2006
Subaru Impreza 2.5L TURBO AT 4WD WRX Wagon 2006
Subaru Impreza 2.5L TURBO SS 4WD GT Sedan 2009, 2010
Subaru Impreza 2.5L TURBO SS 4WD GT Sport Sedan 2008
Subaru Impreza 2.5L TURBO SS 4WD GT Sport Wagon 2008
Subaru Impreza 2.5L TURBO SS 4WD GT Wagon 2009, 2010
Subaru Legacy 2.5L 6MT 4WD Premium Sedan 2010, 2011, 2012
Subaru Legacy 2.5L 6MT 4WD Sedan 2010, 2011, 2012
Subaru Legacy 2.5L CVT 4WD Limited 2010, 2011, 2012
Subaru Legacy 2.5L CVT 4WD Premium Sedan 2010, 2011, 2012
Subaru Legacy 2.5L CVT 4WD Sedan 2010, 2011, 2012
Subaru Legacy 2.5L TURBO 5AT 4WD GT Limited Sedan 2007, 2008, 2009
Subaru Legacy 2.5L TURBO 5AT 4WD GT Limited Wagon 2007
Subaru Legacy 2.5L TURBO 5MT 4WD GT Limited Sedan 2007, 2008, 2009
Subaru Legacy 2.5L TURBO 5MT 4WD GT Limited Wagon 2007
Subaru Legacy 2.5L TURBO 6MT 4WD GT Limited Sedan 2007, 2008, 2009, 2010, 2011, 2012
Subaru Legacy 2.5L TURBO 6MT 4WD GT Premium Sedan 2010, 2011
Subaru Outback 2.5L 6MT Base 2010, 2011, 2012
Subaru Outback 2.5L 6MT Premium 2010, 2011, 2012
Subaru Outback 2.5L CVT Base 2010, 2011, 2012
Subaru Outback 2.5L CVT Limited 2010, 2011, 2012
Subaru Outback 2.5L CVT Premium 2010, 2011, 2012
Subaru Outback 2.5L TURBO 5AT XT 2007
Subaru Outback 2.5L TURBO 5AT XT Limited 2007, 2008, 2009
Subaru Outback 2.5L TURBO 5MT XT 2007
Subaru Outback 2.5L TURBO 5MT XT Limited 2007, 2008, 2009
Subaru STI 2.5L TURBO 6MT 4WD Limited Sedan 2007
Subaru STI 2.5L TURBO 6MT 4WD S SEDAN 2011, 2012, 2013, 2014
Subaru STI 2.5L TURBO 6MT 4WD SEDAN 2007
Subaru STI 2.5L TURBO 6MT 4WD WAGON 2008, 2009, 2010, 2011, 2012, 2013, 2014
Subaru STI 2.5L TURBO 6MT Premium 2017, 2018
Subaru STI 2.5L TURBO 6MT STI 2015, 2016, 2017, 2018
Subaru STI 2.5L TURBO 6MT STI Limited 2015, 2016, 2017, 2018
Subaru WRX 2.5L TURBO 5MT 4WD S SEDAN 2008, 2011, 2012, 2013, 2014
Subaru WRX 2.5L TURBO 5MT 4WD S WAGON 2008
Subaru WRX 2.5L TURBO 5MT 4WD SEDAN 2006, 2007, 2008, 2011, 2012, 2013, 2014
Subaru WRX 2.5L TURBO 5MT 4WD SS SEDAN 2009, 2010
Subaru WRX 2.5L TURBO 5MT 4WD SS WAGON 2009, 2010
Subaru WRX 2.5L TURBO 5MT 4WD TR SEDAN 2006, 2007
Subaru WRX 2.5L TURBO 5MT 4WD WAGON 2006, 2007, 2008, 2011, 2012, 2013, 2014
Subaru WRX 2.5L TURBO 6MT STI w/Spoiler 2017, 2018
Subaru WRX 2.5L TURBO 6MT WRX STI 2017, 2018
Subaru WRX 2.5L TURBO 6MT WRX STI Limited w/Spoiler 2017, 2018
Subaru WRX 2.5L TURBO 6MT WRX STI Premium w/Spoiler 2018
Subaru WRX 2.5L TURBO AT 4WD SEDAN 2006, 2007
Subaru WRX 2.5L TURBO AT 4WD WAGON 2006, 2007
Subaru WRX 2.5L TURBO SS 4WD S SEDAN 2008
Subaru WRX 2.5L TURBO SS 4WD S WAGON 2008
 
Nope definitely not a torque mistake.

Edit: Oh boy, hot-linking already was disabled on post 14 of this thread.
Stupid photobucket...
 
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