Thermostat - Standard Naked Thermostat
MRD105
Spec-R Thermostat
Spec-R️ thermostats are the perfect thermostat for high performance and racing applications. Designed and manufactured by a leading OE thermostat supplier to withstand high pressure and high horsepower demands. Keep your vehicle running at maximum cooling efficiency, whether on the track or on the street.
Features:
- Black oxide coating for high temperature tolerance, corrosion resistance and life-long durability
- Lower than OE opening temperature for cooler engine operation, resulting in more power
- Specially formulated Spec-R️ heat element mixture for faster response time
- Proprietary gasket composition to withstand high pressure / high performance cooling systems
Specifications:
- Prop 65: WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
- Includes Jiggle Pin Check Valve: Yes
- Bypass Flange Diameter: 1.58 in
- Bypass Flange Diameter: 40.13 mm
- Seal Quantity: 1
- Material: Stainless Steel
- Height: 2.7 in
- Height: 68.58 mm
- Material: Copper
- Seal Material: Rubber
- Electric: No
- Start to Open Temperature: 160.0 Deg. F
- Start to Open Temperature: 71.11 Deg. C
- Seal Type: O-Ring
- Jiggle Pin Weep Hole: Yes
- Height Between Flanges: 1.89 in
- Height Between Flanges: 48.01 mm
- Type: Standard
- Bolt Hole Quantity: 0
- Gasket or Seal Pre-Installed: Yes
- Design: OEM
- MAP Controlled: No
- Installation Tool Included: No
- Grade Type: OEM
- Gasket Quantity: 0
- Depth: 1.89 in
- Depth: 48.01 mm
- Color: Silver
- Color: Brass
- Bypass Flange Length: 1.58 in
- Bypass Flange Length: 40.13 mm
- Flange Height: 0.05 in
- Flange Height: 1.27 mm
- Gasket Or Seal Material: Rubber
- Engine Coolant Thermostat Quantity: 1
- Flange Thickness: 0.05 in
- Flange Thickness: 1.27 mm
- Jiggle Pin Check Valve Quantity: 1
- Gasket Or Seal Included: Yes
- Sealing Flange Outside Diameter: 2.2 in
- Sealing Flange Outside Diameter: 55.88 mm
- Gasket Or Seal Required: Yes
Interchanges:
- MotoRad MRD105
Applications:

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