Improved Racing

FSM-185-12AN

Improved Racing FSM-185 High-Flow 185F Engine Oil Thermostat, -12AN

Thermostats

Reduces excessive engine wear and horsepower losses while improving gas mileage by preventing oil temperatures from dropping below optimal levels. Maintains a minimum fluid temperature of 187F (86C) +/- 2F in most conditions
Proprietary high flow, low pressure drop design locates the valve assembly completely out of the primary fluid flow
Allows a small percentage (less than 10%) of fluid to continually circulate to eliminate air pockets and prevent cold fluid trapped in the cooler from shocking the system
Lightweight (12.7 ounces, or 360g, without brackets or fittings), rebuildable, and constructed from 6061-T6 billet aluminum with a black anodized finish. Female -10AN O-ring boss threads. Includes four black anodized aluminum fittings with Viton O-rings for -12AN lines included
Made in USA. Lifetime manufacturer's warranty

Improved Racing's FSM (Flow Series Motor Sport) oil thermostat is a universal solution that can be used to control engine, transmission and differential oil cooler temperatures in any vehicle. This thermostat bypasses the oil cooler until the oil has reached a minimum temperature of 187°F (86°C) +/- 2°F exiting the heat source. Maintaining the oil above this minimum operating temperature reduces engine wear, improves gas mileage and improves horsepower. The device's unique patent-pending internal design ensures a low pressure drop by placing the bypass valve mechanism completely out of the primary oil flow. This arrangement also allows for a compact design. It features female -10AN O-ring boss threads and is available with optional fittings in -6AN, -8AN, -10AN, -12AN or 3/8" hose barbs (make your selection above). The included brackets provide multiple mounting options.

NEW PRO RETAINER SEAL FITS CASE/INTERNATIONAL HARVESTER B414 W/BD154 ENG 704387R11
Machine Products 2251 170 160 Rocker 2251-170-160
Mix me 2186