Valve Spring Compressor 6684 303-1039 alternate to the OTC and Rotunda versions
Note: We suggest the ST-101 version instead of this design because it is much easier to drop a valve with this design.
This is for the following Ford Lincoln or Mercury vehicles with the 3V 4.6L or 5.4L engines Mustang F-150 Super Duty F-250 F-350 F-450 F-550 Explorer Mountaineer Sport Trac Expedition Navigator
- Ford Expedition equipped with 5.4L (3V) model years 2005 2006 2007 2008 2009 2010 2011 2012 2013 and 2014.
- Ford Explorer equipped with 4.6L (3V) model years 2006 2007 2008 2009 and 2010.
- Ford Explorer Sport Trac equipped with 4.6L (3V) model years 2007 2008 2009 and 2010.
- Ford F-150 equipped with 4.6L (3V) model years 2009 and 2010.
- Ford F-150 equipped with 5.4L (3V) model years 2004 2005 2006 2007 2008 2009 and 2010.
- Ford Super Duty F-250 F-350 F-450 and F-550 equipped with 5.4L (3V) model years 2005 2006 2007 2008 2009 and 2010.
- Ford Super Duty F-250 F-350 F-450 and F-550 equipped with 6.8L (3V) model years 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 and 2016.
- Ford Super Duty F-250 F-350 F-450 and F-550 equipped with 6.8L Triton-30V – V10 model years 2017 and 2018.
- Ford F-53 Motorhome Chassis model years 2004 2006 and 2007.
- Ford F-53 Motorhome Chassis equipped with 6.8L (3V) model years 2008 2009 2011 2012 2013 2014 2015 2016 2017 and 2018.
- Ford F-59 Commercial Stripped Chassis equipped with 6.8L (3V) model years 2011 2012 2013 2014 2015 2016 2017 and 2018.
- Ford Super Duty F-650/750 equipped with 6.8L (3V) model years 2012 2013 and 2015.
- Ford Super Duty F-650/750 equipped with 6.8L Triton-30V – V10 model years 2016 2017 and 2018.
- Ford Mustang equipped with 4.6L (3V) model years 2005 2006 2007 2008 2009 and 2010.
- Lincoln Mark LT equipped with 5.4L (3V) model years 2006 2007 and 2008.
- Lincoln Navigator equipped with 5.4L (3V) model years 2005 2006 2007 2008 2009 2010 2011 2012 2013 and 2014.
- Mercury Mountaineer equipped with 4.6L (3V) model years 2006 2007 2008 2009 and 2010.
This is a high-quality aftermarket product.








