Turbochargers operate at high temperatures. The Cool Down Timer is designed to keep the engine running when the ignition is turned off to prevent turbocharger bearing failure that could occur when the engine is shut down, stopping the cool lubricating oil flowing to the turbocharger while it is still hot. If the oil flow is shut off too early, the remaining oil in the bearing housing will overheat causing coking of the bearings which causes both premature bearing wear and reduced oiling of the bearings. Allowing the engine to idle to a minimum operating speed gives the turbocharger time to cool down. The CDT is adjustable for up to 5 minutes of idle time, or optionally works with any K-Type EGT probe for temperature-based shutdown.
Installation Instructions
Installation Instructions

This Part Fits:

Year	Make	Model	Submodel
2006-2014	Chevrolet	Express 2500	Base
2006	Chevrolet	Express 2500	LS
2006	Chevrolet	Express 2500	LT
2006-2014	Chevrolet	Express 3500	Base
2011-2014	Chevrolet	Express 3500	LS
2011-2014	Chevrolet	Express 3500	LT
2001-2005	Chevrolet	Silverado 2500 HD	Base
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2014	Chevrolet	Silverado 2500 HD	LT
2007-2014	Chevrolet	Silverado 2500 HD	LTZ
2003-2014	Chevrolet	Silverado 2500 HD	WT
2007	Chevrolet	Silverado 2500 HD Classic	LS
2007	Chevrolet	Silverado 2500 HD Classic	LT
2007	Chevrolet	Silverado 2500 HD Classic	WT
2001-2005	Chevrolet	Silverado 3500	Base
2001-2006	Chevrolet	Silverado 3500	LS
2001-2006	Chevrolet	Silverado 3500	LT
2004,2006	Chevrolet	Silverado 3500	WT
2007	Chevrolet	Silverado 3500 Classic	LS
2007	Chevrolet	Silverado 3500 Classic	LT
2007	Chevrolet	Silverado 3500 Classic	WT
2007-2014	Chevrolet	Silverado 3500 HD	LT
2007-2014	Chevrolet	Silverado 3500 HD	LTZ
2007-2014	Chevrolet	Silverado 3500 HD	WT
1994-2002	Dodge	Ram 2500	Base
2003,2005	Dodge	Ram 2500	Laramie
2003-2005	Dodge	Ram 2500	SLT
2003-2005	Dodge	Ram 2500	ST
1994-2002	Dodge	Ram 3500	Base
2003-2005	Dodge	Ram 3500	Laramie
2003-2005	Dodge	Ram 3500	SLT
2003-2005	Dodge	Ram 3500	ST
2003-2005	Ford	E-350 Club Wagon	Chateau
2003-2005	Ford	E-350 Club Wagon	XL
2003-2005	Ford	E-350 Club Wagon	XLT
1994-1998	Ford	E-350 Econoline	Base
1994-1998	Ford	E-350 Econoline	XL
1994-2002	Ford	E-350 Econoline Club Wagon	Chateau
1994-1996	Ford	E-350 Econoline Club Wagon	Chateau HD
1994-2000	Ford	E-350 Econoline Club Wagon	Custom
2001-2002	Ford	E-350 Econoline Club Wagon	XL
1994-1998	Ford	E-350 Econoline Club Wagon	XL HD
1994-2002	Ford	E-350 Econoline Club Wagon	XLT
1994-1998	Ford	E-350 Econoline Club Wagon	XLT HD
1999-2010	Ford	E-350 Super Duty	Base
2006	Ford	E-350 Super Duty	Chateau
1999-2000,2006-2008,2010	Ford	E-350 Super Duty	XL
2006-2010	Ford	E-350 Super Duty	XLT
2003-2005	Ford	Excursion	Eddie Bauer
2000-2005	Ford	Excursion	Limited
2004-2005	Ford	Excursion	XLS
2000-2005	Ford	Excursion	XLT
1997	Ford	F-250	Base
1995-1996	Ford	F-250	Eddie Bauer
1997	Ford	F-250	Lariat
1995-1996	Ford	F-250	Special
1994-1997	Ford	F-250	XL
1994-1997	Ford	F-250	XLT
1997	Ford	F-250 HD	XL
1997	Ford	F-250 HD	XLT
2009-2010	Ford	F-250 Super Duty	Cabela's
2008-2009	Ford	F-250 Super Duty	FX4
2004-2010	Ford	F-250 Super Duty	Harley-Davidson Edition
2004-2019	Ford	F-250 Super Duty	King Ranch
1999-2019	Ford	F-250 Super Duty	Lariat
2018-2019	Ford	F-250 Super Duty	Limited
2013-2019	Ford	F-250 Super Duty	Platinum
1999-2019	Ford	F-250 Super Duty	XL
1999-2019	Ford	F-250 Super Duty	XLT
1997	Ford	F-350	Base
1995	Ford	F-350	Eddie Bauer
1995-1996	Ford	F-350	Special
1994-1997	Ford	F-350	XL
1994-1997	Ford	F-350	XLT
2009-2010	Ford	F-350 Super Duty	Cabela's
2008-2009	Ford	F-350 Super Duty	FX4
2004-2010	Ford	F-350 Super Duty	Harley-Davidson Edition
2003-2019	Ford	F-350 Super Duty	King Ranch
1999-2019	Ford	F-350 Super Duty	Lariat
2018-2019	Ford	F-350 Super Duty	Limited
2013-2019	Ford	F-350 Super Duty	Platinum
1999-2019	Ford	F-350 Super Duty	XL
1999-2019	Ford	F-350 Super Duty	XLT
2009,2011-2013	Ford	F-450 Super Duty	Base
2009-2010	Ford	F-450 Super Duty	Harley-Davidson Edition
2008-2013	Ford	F-450 Super Duty	King Ranch
2008-2013	Ford	F-450 Super Duty	Lariat
2013	Ford	F-450 Super Duty	Platinum
2008-2013	Ford	F-450 Super Duty	XL
2008-2013	Ford	F-450 Super Duty	XLT
2006-2014	GMC	Savana 2500	Base
2006-2014	GMC	Savana 3500	Base
2011-2014	GMC	Savana 3500	LS
2011-2014	GMC	Savana 3500	LT
2002-2005	GMC	Sierra 2500 HD	Base
2011-2014	GMC	Sierra 2500 HD	Denali
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2014	GMC	Sierra 2500 HD	SLE
2001-2014	GMC	Sierra 2500 HD	SLT
2003-2014	GMC	Sierra 2500 HD	WT
2007	GMC	Sierra 2500 HD Classic	SL
2007	GMC	Sierra 2500 HD Classic	SLE
2007	GMC	Sierra 2500 HD Classic	SLT
2007	GMC	Sierra 2500 HD Classic	WT
2002-2005	GMC	Sierra 3500	Base
2001-2002,2006	GMC	Sierra 3500	SL
2001-2006	GMC	Sierra 3500	SLE
2001-2006	GMC	Sierra 3500	SLT
2004-2006	GMC	Sierra 3500	WT
2007	GMC	Sierra 3500 Classic	SL
2007	GMC	Sierra 3500 Classic	SLE
2007	GMC	Sierra 3500 Classic	SLT
2007	GMC	Sierra 3500 Classic	WT
2011-2014	GMC	Sierra 3500 HD	Denali
2007-2014	GMC	Sierra 3500 HD	SLE
2007-2014	GMC	Sierra 3500 HD	SLT
2007-2014	GMC	Sierra 3500 HD	WT
2006	Hummer	H1	Alpha