Mishimoto MMTS-VET-05 169F Racing Thermostat GM LS V8 Camaro Corvette Silverado

Regular price: $77.95
Regular price: ~~$76.00~~
Sale price: $77.95

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In Stock: 12

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Product Specification:

SKU:MISMMTS-VET-05

UPC: 748354027037

Weight: 0.29 lb

Inventory: 12

Type: Thermostats

Vehicle Fitment

2007 Buick Rainier CXL (4.2L / 5.3L V8)
2009-2015 Cadillac CTS-V (6.2L V8 LSA/LS9)
2007-2014 Cadillac Escalade / Escalade ESV (6.2L V8)
2007-2013 Cadillac Escalade EXT (6.2L V8)
2007-2013 Chevrolet Avalanche (5.3L V8)
2010-2015 Chevrolet Camaro SS (6.2L LS3)
2012-2015 Chevrolet Camaro ZL1 (6.2L LSA)
2011-2015 Chevrolet Caprice (6.0L V8)
2009-2012 Chevrolet Colorado LT (5.3L V8)
2009-2013 Chevrolet Corvette C6 (6.2L LS3, incl. ZR1 LS9)
2007-2015 Chevrolet Silverado 1500 (LS V8 trims - 5.3L, 6.2L)
2007-2009 Chevrolet SSR (6.0L V8)
2007-2014 Chevrolet Suburban (5.3L / 6.0L / 6.2L V8 trims)
2007-2014 Chevrolet Tahoe (5.3L / 6.0L / 6.2L V8 trims)
2007-2009 Chevrolet Trailblazer SS (6.0L V8)
2009-2012 GMC Canyon SLT (5.3L V8)
2007-2015 GMC Savana (LS V8)
2007-2015 GMC Sierra 1500 (LS V8 trims - 5.3L, 6.2L)
2007-2014 GMC Yukon / Yukon XL 1500 / Yukon XL 2500 (LS V8 trims)
2007-2009 Hummer H2 (6.2L V8)
2008-2010 Hummer H3 Alpha (5.3L V8)
2009 Pontiac G8 GT / GXP (6.0L / 6.2L V8)

Fitment Notes

Fits GM Gen IV LS-family V8 engines (LS3, LSA, LS9, L99, L76, L92, L96, LC9, LMG, and related 4.8L / 5.3L / 6.0L / 6.2L displacements) sharing the same thermostat housing design
Direct-fit drop-in replacement - installs directly into the OEM thermostat housing with no modifications required; does NOT include a replacement thermostat housing
Fits stock thermostat housing - verify your engine code and thermostat housing type before ordering; this thermostat is not compatible with all GM V8 applications outside of the Gen IV LS family listed above
Rubber O-ring is included - use the included O-ring to ensure a proper, leak-free seal at the thermostat housing mating surface
Sold individually - one (1) thermostat per order
Mishimoto Lifetime Limited Warranty included
This is a performance street thermostat - it is not a high-temperature thermostat; intended for use in street-driven and modified applications where lower sustained coolant temperature is desired

Features

Opens at 169°F - approximately 9-18°F lower than the OEM thermostat (which opens in the 178-187°F range depending on application), allowing coolant to begin circulating through the radiator sooner and maintaining a lower steady-state operating temperature
Standard-flow design - coolant flow rate matches OEM; no restriction or surge compared to stock operation
Copper and stainless steel construction - delivers corrosion resistance and reliable wax-element operation across the full service life of the thermostat
High-quality wax element digitally calibrated for precise, repeatable opening temperature - ensures consistent 169°F activation across all operating conditions
Direct-fit for GM Gen IV LS thermostat housing - no cutting, drilling, or modification required for installation
Rubber O-ring included - eliminates the need to source a separate gasket for installation
Beneficial for modified and upgraded engines - forced induction, supercharged, and high-output naturally aspirated LS builds generate more heat than stock; the earlier thermostat opening point reduces the risk of sustained elevated coolant temperatures under load
Improves long-term cooling system reliability by reducing thermal cycling amplitude and keeping coolant temperatures further from the danger threshold during sustained high-load operation
Mishimoto Lifetime Limited Warranty with Accident Protection

Specifications

Part Type: Mechanical Racing Thermostat
Flow Rate: Standard-Flow
Opening Temperature: 169°F (76°C)
Stock OEM Opening Temperature: 178-187°F (varies by application)
Material: Copper / Stainless Steel
Housing Included: No (fits OEM GM Gen IV LS thermostat housing)
Gasket/O-Ring Included: Yes (rubber O-ring)
Fitment Type: Direct-Fit
Warranty: Mishimoto Lifetime Limited
Quantity: 1 (Sold Individually)

Included Components

1x Mishimoto MMTS-VET-05 racing thermostat (169°F, copper/stainless steel)
1x Rubber O-ring (thermostat housing seal)

Product Description

The Mishimoto MMTS-VET-05 is a direct-fit 169°F racing thermostat for GM Gen IV LS-platform V8 engines, covering a wide range of Chevrolet, GMC, Cadillac, Buick, Hummer, and Pontiac vehicles from 2007 through 2015 that share the Gen IV LS thermostat housing. Primary applications include the 2010-2015 Chevrolet Camaro SS and ZL1, the 2009-2013 Chevrolet Corvette C6 (including the LS9-powered ZR1), the 2009-2015 Cadillac CTS-V, and the full range of LS-equipped trucks, SUVs, and crossovers built on the GMT900 platform. The thermostat installs directly into the factory housing with no modifications - the included rubber O-ring ensures a clean seal on installation.

The stock GM Gen IV LS thermostat opens in the 178-187°F range depending on application. The MMTS-VET-05 lowers that threshold to 169°F, causing the thermostat to open and begin circulating coolant through the radiator approximately 9-18°F earlier. This earlier opening point means the coolant temperature stabilizes at a lower steady-state during normal driving, reducing sustained thermal stress on engine components, oil, and coolant. For modified and forced induction LS builds - supercharged ZL1s, boosted CTS-Vs, high-output Corvette builds - this margin is particularly valuable, as these engines generate significantly more heat under load than a stock naturally aspirated setup.

Built from copper and stainless steel with a digitally calibrated wax element, the MMTS-VET-05 delivers consistent, repeatable 169°F activation and long-term reliability. It is engineered as a standard-flow thermostat, so coolant flow rates remain consistent with OEM operation - no flow restriction or surge. The thermostat fits directly into the factory GM Gen IV LS housing without a housing replacement, making installation straightforward for any competent home mechanic. Backed by Mishimoto's Lifetime Limited Warranty with Accident Protection. Sold individually.