Description
The Mishimoto In-Line Oil Thermostat, part number MMOP-EXTFC, is a CNC-machined, billet 6061 aluminum unit built to regulate engine oil, transmission fluid, or other driveline fluid on projects where a standard oil sandwich plate simply won’t fit. Its compact, sleek profile and included heat-sink give it a distinct blend of function and style that sets it apart from bulkier fluid temperature solutions.
Designed for enthusiasts working on tight custom builds, this in-line thermostat brings precise thermal control to car engine and driveline fluid systems without demanding the clearance a traditional sandwich plate requires. The included thermostat opens at 185 degrees Fahrenheit (85°C) and is easily swapped for optional 160°F or 200°F units, letting builders dial in fluid temperature regulation to match their specific engine parts and performance goals. Four -10AN fittings with dowty seals ensure leak-free line connections, while the CNC-machined heat-sink helps pull additional heat out of the fluid as it passes through. Whether you’re organizing components of an automobile engine bay or routing lines through a tight chassis, this thermostat is engineered to slot into the layout without compromise.
Vehicle Applications
The Mishimoto In-Line Oil Thermostat is built for universal fitment rather than a single make or model, making it a flexible option across custom engine and driveline builds. Its compact size and included universal mounting bracket are specifically intended for projects where space or clearance constraints rule out a standard oil sandwich plate, so it can be adapted to a wide range of car engine and transmission fluid cooling setups.
Features
- Universal fitment with a compact design, ideal for custom projects where space or clearance is a constraint
- Includes a 185°F (85°C) internal thermostat that accurately regulates fluid temperatures
- Thermostat unit is easily removed and can be replaced with optional 160°F (71°C) or 200°F (93°C) versions
- CNC-machined from billet 6061 aluminum
- Includes four -10AN fittings with high-quality dowty seals for leak-free operation
- Integrated heat-sink adds unique styling while helping reduce fluid temperatures
- Universal mounting bracket and necessary hardware included
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMOP-EXTFC
- Material: Billet 6061 aluminum, CNC-machined
- Grade Type: Performance
- Gasket or Seal Included: Yes
- Inlet Port Diameter: 0.625 in
- Outlet Port Diameter: 0.625 in
- Start to Open Temperature: 185°F
- Overall Width: 1.3 in
- Overall Height: 3.95 in
- Overall Length: 4.29 in
- Includes: Remote Thermostatic Oil Plate, -10AN Fittings with Dowty Seals, Heat Sink, Built-in Thermostat, Universal Mounting Bracket, Necessary Hardware, Mishimoto Lifetime Warranty
- Recommended Installation Torque: 15-25 ft-lb for straight fittings and banjo bolts (do not exceed 35 ft-lb)
Frequently Asked Questions
What temperature does the included thermostat regulate to?
The Mishimoto In-Line Oil Thermostat includes a 185°F (85°C) thermostat that regulates fluid temperature.
Can the thermostat temperature be changed?
Yes, the thermostat unit is easily removed and can be replaced with optional 160°F (71°C) or 200°F (93°C) versions.
What material is the Mishimoto In-Line Oil Thermostat made from?
It is CNC-machined from a single piece of billet 6061 aluminum.
What fittings are included with this thermostat?
It includes four -10AN fittings with high-quality dowty seals for leak-free line connections.
Does this thermostat include a mounting bracket?
Yes, a universal mounting bracket and the necessary hardware are included.
What is the recommended installation torque for the fittings?
The recommended torque specification for all straight fittings and banjo bolts is 15-25 ft-lb, and the maximum torque rating should not exceed 35 ft-lb.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
