This Speed Engineering 160° thermostat is a low-temperature replacement for the factory thermostat on LS3-era GM engines. It opens at a lower temperature than stock, letting coolant circulate sooner so the engine runs cooler. It covers 4.8L, 5.3L, 6.0L and 6.2L V8 applications in GM trucks and SUVs, plus the Camaro, Corvette, Pontiac G8 and Trailblazer SS listed below.
⚠️ Important Notes:
- Also fits late 2009.5 Pontiac G8 models with the water pump housing on the driver side
Features:
- 160° Opening Temperature: Low-temperature thermostat
- Replaces the Factory Thermostat
- Engines: 4.8L, 5.3L, 6.0L and 6.2L V8
- Fits LS3, L99, LS7 and L76 Applications Listed
Vehicle Applications:
Chevrolet Camaro
- 2010 Chevrolet Camaro — LS3/L99
- 2011 Chevrolet Camaro — LS3/L99
- 2012 Chevrolet Camaro — LS3/L99
- 2013 Chevrolet Camaro — LS3/L99
- 2014 Chevrolet Camaro — LS3/L99
Chevrolet Corvette
- 2009 Chevrolet Corvette — LS3/LS7
- 2010 Chevrolet Corvette — LS3/LS7
- 2011 Chevrolet Corvette — LS3/LS7
- 2012 Chevrolet Corvette — LS3/LS7
- 2013 Chevrolet Corvette — LS3/LS7
- 2014 Chevrolet Corvette — LS3/LS7
Chevrolet Silverado
- 2009 Chevrolet Silverado — 4.8L/5.3L/6.0L/6.2L
- 2010 Chevrolet Silverado — 4.8L/5.3L/6.0L/6.2L
- 2011 Chevrolet Silverado — 4.8L/5.3L/6.0L/6.2L
- 2012 Chevrolet Silverado — 4.8L/5.3L/6.0L/6.2L
- 2013 Chevrolet Silverado — 4.8L/5.3L/6.0L/6.2L
- 2014 Chevrolet Silverado — 4.8L/5.3L/6.0L/6.2L
GMC Sierra
- 2009 GMC Sierra — 4.8L/5.3L/6.0L/6.2L
- 2010 GMC Sierra — 4.8L/5.3L/6.0L/6.2L
- 2011 GMC Sierra — 4.8L/5.3L/6.0L/6.2L
- 2012 GMC Sierra — 4.8L/5.3L/6.0L/6.2L
- 2013 GMC Sierra — 4.8L/5.3L/6.0L/6.2L
- 2014 GMC Sierra — 4.8L/5.3L/6.0L/6.2L
Chevrolet Tahoe
- 2009 Chevrolet Tahoe — 4.8L/5.3L/6.2L
- 2010 Chevrolet Tahoe — 4.8L/5.3L/6.2L
- 2011 Chevrolet Tahoe — 4.8L/5.3L/6.2L
- 2012 Chevrolet Tahoe — 4.8L/5.3L/6.2L
- 2013 Chevrolet Tahoe — 4.8L/5.3L/6.2L
Chevrolet Avalanche
- 2009 Chevrolet Avalanche — 5.3L/6.0L
- 2010 Chevrolet Avalanche — 5.3L/6.0L
- 2011 Chevrolet Avalanche — 5.3L/6.0L
- 2012 Chevrolet Avalanche — 5.3L/6.0L
- 2013 Chevrolet Avalanche — 5.3L/6.0L
Chevrolet Suburban
- 2009 Chevrolet Suburban — 5.3L/6.0L/6.2L
- 2010 Chevrolet Suburban — 5.3L/6.0L/6.2L
- 2011 Chevrolet Suburban — 5.3L/6.0L/6.2L
- 2012 Chevrolet Suburban — 5.3L/6.0L/6.2L
- 2013 Chevrolet Suburban — 5.3L/6.0L/6.2L
GMC Yukon
- 2009 GMC Yukon — 4.8L/5.3L/6.2L
- 2010 GMC Yukon — 4.8L/5.3L/6.2L
- 2011 GMC Yukon — 4.8L/5.3L/6.2L
- 2012 GMC Yukon — 4.8L/5.3L/6.2L
- 2013 GMC Yukon — 4.8L/5.3L/6.2L
GMC Sierra Denali
- 2009 GMC Sierra Denali — 6.2L
- 2010 GMC Sierra Denali — 6.2L
- 2011 GMC Sierra Denali — 6.2L
- 2012 GMC Sierra Denali — 6.2L
- 2013 GMC Sierra Denali — 6.2L
GMC Yukon Denali
- 2009 GMC Yukon Denali — 6.2L
- 2010 GMC Yukon Denali — 6.2L
- 2011 GMC Yukon Denali — 6.2L
- 2012 GMC Yukon Denali — 6.2L
- 2013 GMC Yukon Denali — 6.2L
GMC Yukon XL Denali
- 2009 GMC Yukon XL Denali — 6.2L
- 2010 GMC Yukon XL Denali — 6.2L
- 2011 GMC Yukon XL Denali — 6.2L
- 2012 GMC Yukon XL Denali — 6.2L
- 2013 GMC Yukon XL Denali — 6.2L
Cadillac Escalade
- 2007 Cadillac Escalade — 6.2L
- 2008 Cadillac Escalade — 6.2L
- 2009 Cadillac Escalade — 6.2L
- 2010 Cadillac Escalade — 6.2L
- 2011 Cadillac Escalade — 6.2L
- 2012 Cadillac Escalade — 6.2L
- 2013 Cadillac Escalade — 6.2L
Chevrolet Trailblazer SS
- 2007 Chevrolet Trailblazer SS
- 2008 Chevrolet Trailblazer SS
- 2009 Chevrolet Trailblazer SS
Pontiac G8
- 2009 Pontiac G8 GT — L76
- 2009.5 Pontiac G8 GT — L76
- 2009 Pontiac G8 GXP
- 2009.5 Pontiac G8 GXP
FAQ
What temperature does this thermostat open at?
This thermostat is rated at 160°, which is a low-temperature thermostat compared to the factory unit.
Which trucks does this thermostat fit?
It fits 2009–2014 Chevrolet Silverado and GMC Sierra with the 4.8L, 5.3L, 6.0L or 6.2L V8, plus 2009–2013 Tahoe, Yukon, Suburban, Avalanche, Sierra Denali, Yukon Denali and Yukon XL Denali models with the engines listed.
Will it fit a Pontiac G8?
Yes. It is listed for 2009 and 2009.5 Pontiac G8 GT (L76) and G8 GXP. It also fits the late 2009.5 G8 with the water pump housing on the driver side.
Does it fit the Camaro and Corvette?
Yes. It fits the 2010–2014 Camaro with the LS3 or L99 and the 2009–2014 Corvette with the LS3 or LS7.
Is this part street legal?
No. Speed Engineering sells this thermostat as a race-only product intended for competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3).
