Oldsmobile V8/V6/L6 Racing Thermostat, 1964–1993

Oldsmobile V8/V6/L6 Racing Thermostat, 1964–1993
Oldsmobile V8/V6/L6 Racing Thermostat, 1964–1993

Regular Price: $31.20

Sale Price $24.95

Installation Difficulty

  • Direct fit for most 1964–1993 Oldsmobile V6/V8/L6 engines
  • Promotes greater cooling efficiency by significantly decreasing high engine temperatures
  • Opens at a lower temperature (180°F) than standard thermostats, allowing coolant to flow through the engine sooner, reducing engine temperatures
  • Digitally calibrated for precise, consistent operation
  • Includes high-quality thermostat seal for leak-free installation
  • Lifetime Warranty

Treat your Olds to a dose of reliability with the Mishimoto racing thermostat. Proper maintenance of the cooling system is key for optimal performance and essential for extending the life of your engine. A failed thermostat can lead to overheating, accelerated engine wear, and potential internal engine damage. The Mishimoto Oldsmobile Racing Thermostat is precision engineered to provide your vehicle with years of reliable service and optimal cooling efficiency even in the most demanding environments. Mishimoto racing thermostats promote greater cooling efficiency by significantly decreasing high engine temperatures. Once the engine is fully warmed up, the Mishimoto low-temperature racing thermostat will open at a lower temperature (180°F) compared to standard thermostats (195°F). This allows coolant to flow through the engine sooner, thus reducing and maintaining cooler engine temperatures. Mishimoto thermostats are digitally calibrated, utilize high-quality wax to ensure precise and consistent opening temperatures, and include a gasket for seamless, leak-free installation. Whether you have a blown 442 or a convertible Cutlass, trust Mishimoto to keep your Oldsmobile on the road and out of the shop! This thermostat is applicable for most V8, V6, and L6 Oldsmobile engines from 1964 to 1993; for more information check out our application guide! As with all our products, this racing thermostat is guaranteed by the Mishimoto Lifetime Warranty

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.



OEM Activation Temp C 90°C

OEM Activation Temp F 195°F

Purchase Includes (1) Mishimoto Thermostat
Mishimoto Lifetime Warranty

Engine Codes https://mishimoto.com/media/additionalpdfs/mmts-wra-87l-engine-codes.pdf

Fits https://mishimoto.com/media/additionalpdfs/mmts-wra-87l-additional-fitments.pdf

Mishimoto Activation Temp (Fahrenheit) 180°F

Mishimoto Activation Temp (Celsius) 82°C


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