ACDelco Professional Engine Coolant Thermostats control the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature, and are a high quality replacement for many vehicles on the road today. These engine coolant thermostats are manufactured to meet your expectations for fit, form, and function.

ACDelco has a full line of high-quality thermostats and caps for nearly all GM vehicles on the road today. Through our GM OE and Professional, premium aftermarket product lines, our thermostats cover a wide range of designs and temperature ratings to meet your needs. We also offer GM OE and Professional, premium aftermarket fuel caps, radiator caps, and oil filler/breather caps to replace your worn GM Original Equipment. When it comes to replacing your Thermostats and Caps, ACDelco offers a full line of Professional, premium aftermarket Thermostat and Cap products. In addition, ACDelco offers engine coolant thermostats, locking fuel caps, and standard type radiator caps to help make part replacement simple and precise. ACDelco Professional, premium aftermarket Thermostats and Caps fit both GM and Non GM vehicles.

• Controls the flow of coolant through the radiator to help your vehicle's engine reach and maintain its optimal operating temperature
• Professional, premium aftermarket replacement
• Provides the performance and dependability you expect from ACDelco
• Manufactured to meet expectations for fit, form, and function

AltPA_493_degrees_c:	86
AltPA_493_degrees_f:	187
Height:	3.2
Length:	3.5
Programming Required:	NO
Seal Type:	Gasket
Vintage_Part_Indicator:	N
Weight:	.17
Width:	3.2

• 1990-1991 GMC B6000        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1990-1991 GMC C5000 Topkick        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1990 GMC C6000        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1990-1996 GMC C6000 Topkick        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1990 GMC C7000        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1990-1996 GMC C7000 Topkick        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1992-1996 GMC P6500        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1993-1998 GMC B7        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1997-2003 Chevrolet Corvette        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 1997-1998 GMC C6500 Topkick        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1997-1998 GMC C7500 Topkick        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1997-1998 GMC T6500        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1997-1998 GMC T7500        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 1998-2002 Chevrolet Camaro        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 1998-2002 Pontiac Firebird        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 1999-2003 Chevrolet Silverado 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 1999-2003 Chevrolet Silverado 2500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 1999-2003 GMC Sierra 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 1999-2003 GMC Sierra 2500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2000-2003 Chevrolet Suburban 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2000-2003 Chevrolet Suburban 2500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2000-2003 Chevrolet Tahoe        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2000-2003 GMC Yukon        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2000-2003 GMC Yukon XL 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2000-2003 GMC Yukon XL 2500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 Chevrolet Silverado 1500 HD        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 Chevrolet Silverado 2500 HD        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 Chevrolet Silverado 3500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 Chevrolet Sonora        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 GMC Sierra 1500 HD        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 GMC Sierra 2500 HD        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2001-2003 GMC Sierra 3500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2002-2003 Cadillac Escalade        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2002-2003 Cadillac Escalade EXT        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2002-2003 Chevrolet Avalanche 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Cadillac Escalade ESV        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Chevrolet Express 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Chevrolet Express 2500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Chevrolet Express 3500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Chevrolet SSR        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003-2006 Chevrolet Trailblazer EXT        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2003 GMC Envoy XL        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 GMC Savana 1500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 GMC Savana 2500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 GMC Savana 3500        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Hummer H2        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003 Isuzu Ascender        Note: Temperature 187F Includes seal w/ Replacement late model water pump requiring seperate thermostat and housing. Thermostat only. OEM Recommended Temp Standard
• 2003-2006 Isuzu NPR        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2003-2006 Isuzu NPR-HD        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2004-2006 Buick Rainier        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2007 Cadillac CTS        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Cadillac Escalade        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Cadillac Escalade ESV        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Cadillac Escalade EXT        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Avalanche 1500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2008 Chevrolet Corvette        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Express 1500        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2004-2006 Chevrolet Express 2500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Express 3500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Silverado 1500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2009 Chevrolet Silverado 2500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Silverado 2500 HD        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Silverado 3500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Sonora        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet SSR        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Suburban 1500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Suburban 2500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Chevrolet Tahoe        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Envoy XL        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2005 GMC Envoy XUV        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Savana 1500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Savana 2500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Savana 3500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Sierra 1500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004 GMC Sierra 2500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Sierra 2500 HD        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Sierra 3500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Yukon        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Yukon XL 1500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 GMC Yukon XL 2500        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Hummer H2        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Isuzu Ascender        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004-2006 Pontiac GTO        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2004 Workhorse Custom Chassis P42        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2005-2006 Chevrolet Silverado 1500 HD        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2005-2006 GMC Envoy        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2005-2006 GMC Sierra 1500 HD        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2005-2008 Pontiac Grand Prix        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2005-2008 Saab 9-7x        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2006 Chevrolet Express 3500        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2006-2009 Chevrolet Impala        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2006-2007 Chevrolet Monte Carlo        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2006 Chevrolet Trailblazer        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2010-2012 Isuzu NPR        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2008-2009 Buick Allure        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2008-2009 Buick LaCrosse        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2008-2009 Pontiac G8        Note: Temperature 187F Includes seal Thermostat only OEM Recommended Temp Standard
• 2010 Chevrolet W4500 Tiltmaster        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2010 GMC W4500 Forward        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2010-2011 Workhorse W62        Note: Temperature 187F Includes seal OEM Recommended Temp Standard
• 2011-2012 Workhorse Custom Chassis W62        Note: Temperature 187F Includes seal OEM Recommended Temp Standard