The Mishimoto racing thermostat for Volvo XC70 2003–2007 is tuned to open 9°F (5°C) earlier than the stock unit, beginning to pass coolant at roughly 185°F (85°C) to help the cooling system shed heat sooner. It includes an OEM-quality cast aluminum thermostat housing for a proper fit and is intended to support more efficient cooling when paired with upgraded radiators; it is covered by Mishimoto's Lifetime Warranty.
Mishimoto 03-07 Volvo XC70 Racing Thermostat - 85C