Improved Racing - Flow Series Extreme remote oil thermostat, high flow applications, 185F

• Designed for large diesel engine and transmission applications flowing up to 33 GPM (125 LPM) of oil and up to 50 GPM (189 LPM) of water.

• Accelerates fluid warmup time and maintains a minimum fluid temperature.

• Patented high-flow design with no valves, springs, or other obstructions in the primary oil flow.

• Features -16AN female O-ring boss ports. Optional adapter fittings available in various sizes.

• Lifetime warranty. Made in the USA.

Improved Racing's Flow Series Extreme (FSX) oil thermostat is a universal solution that can be used with any oil cooler on any vehicle or industrial application with very high fluid flow rates of up to 33 GPM (125 LPM) for engine oil and 50 GPM (189 LPM) for low-viscosity fluids such as water.

The FSX was specifically designed for use in diesel engine applications, including semi trucks and large pickup trucks, which require higher oil flow rates than passenger vehicles. It can be used with -12AN, -16AN, or even -20AN fluid lines.

The device's unique, patented internal design (US patent 9,772,632) 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.High performance vehicles require large oil coolers to ensure that the oil does not overheat during strenuous use. These coolers also introduce the danger of over-cooling the oil and delaying engine warm-up, resulting in horsepower loss, excessive engine wear and reduced gas mileage. Oil thermostats perform the critical function of bypassing the oil cooler until the oil has reached its minimum operating temperature.

The thermostat features female -16AN O-ring boss threads and is available with optional AN fittings in -12AN and -16AN. The included brackets allow for multiple mounting options.

Features and Benefits

• Designed for specifically for large diesel engine and transmission applications flowing up to 33 GPM (125 LPM) of oil and up to 50 GPM (189 LPM) of water
• 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 according to the typical stabilization temp in the table below, +/- 2°F (+/- 1°C)
• Patented, 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 through the cooler to eliminate air pockets and prevent cold fluid trapped in the cooler from shocking the system
• Rebuildable
• 6061-T6 billet aluminum construction with black MIL-A-8625 Type II anodized finish
• Lightweight at just 18.1 oz (514 g) without brackets or fittings

Temperature Rating Specifications

Mounting brackets allow for multiple mounting configurations

Applications

• Engine, transmission, differential, and industrial fluid cooling applications flowing up to 33 GPM (125 LPM) of oil and up to 50 GPM (189 LPM) of water
• Diesel semi truck, pickup truck, generators, and other large high-flow engine oil cooling systems
• Diesel semi truck transmission fluid cooling systems
• Diesel semi truck differential and transfer case fluid cooling systems
• Not for use with corrosive fluids. If used with water, a distilled water solution with a lubricant such as ethylene glycol must be used.

Includes

• 1x FSX remote thermostat
• 2x Zinc-plated steel mounting brackets and screws