Heating and Cooling Thermostats, Housings and Fillers

Mishimoto

Mishimoto 98-13 Arctic Cat 500 Performance Thermostat 63C/145F

$45.77

SKU: M00C MMTS-AC5-98L

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Mishimoto Performance Thermostat is a low-temperature thermostat designed for the Arctic Cat 500. It features a lower opening temperature of 145°F compared to the OEM's 154°F, helping to keep the engine cool in hot climates or under heavy loads. This thermostat is a direct fit for Arctic Cat 500 models from 1998 to 2013 and includes an O-ring for easy installation.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMishimoto
Part NumberM00C MMTS-AC5-98L

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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