Mr. Gasket
High Performance / High Flow Thermostat 195 Degrees Fits GM/Ford/AMC, Chrysler Slant 6 and 1979-1989 Mopar 318, 360 V8 Mr Gasket
SKU: M00S 4365
Description
Part #: 4365
Mr. Gasket High Performance Thermostats are designed to resist large variations of coolant pressure at high RPM (revolutions per minute). This allows them to fully open at correct temperature consistently regardless of engine RPM.The design also provides the high flow that engines operated a higher RPM need. This thermostat also features a copper/brass construction to further resist corrosion.Mr. Gasket High Performance / High Flow Thermostats are suitable for street, drag race, or oval track applications.Opens At 195 DegreesDesigned to Resist Large Variations of Coolant Pressure at High RPMFully Opens at Correct Temperature Consistently Regardless of Engine RPMFor High Performance Street, Drag Race, and Oval TrackCopper and Brass Construction - Resists CorrosionHigh FlowDetails:Emission Code: 5Material: CopperWarranty: Manufacturer's Limited 90 Day Warranty
Features:
- Opens At 195 Degrees
- Designed to Resist Large Variations of Coolant Pressure at High RPM
- Fully Opens at Correct Temperature Consistently Regardless of Engine RPM
- For High Performance Street, Drag Race, and Oval Track
- Copper & Brass Construction - Resists Corrosion
- High Flow
Fits GM/Ford/AMC, Chrysler Slant 6 and 1979-1989 Mopar 318, 360 V8
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
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
| Brand | Mr. Gasket |
| Part Number | M00S 4365 |
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.
View Full Return Policy