HomeBelts and Cooling > Thermostat and HousingMotorad 319-170 Engine Coolant Thermostat
Part #: 319-170

Motorad 319-170 Engine Coolant Thermostat

Standard
⚙️ 110 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Standard
🚗Fitment: Mazda, Chevrolet, and Ford, CX-5, 3, 3 Sport, 6, 2, Tracker, Protege, Protege5, 626, Millenia, MPV, Probe, MX-6, and MX-3
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Reliable Engine Coolant Thermostat for Chevrolet, Ford, and Mazda

The Motorad Standard 319-170 engine coolant thermostat is designed to maintain optimal engine temperature for select Chevrolet, Ford, and Mazda vehicles. Engineered to open at 170 degrees Fahrenheit, this thermostat ensures efficient coolant flow and engine performance.

  • Sealing flange outside diameter: 2.047 inches
  • Bypass diameter: 1.09 inches
  • Bypass length: 1.61 inches
  • Flange thickness: 0.05 inches
  • Includes jiggle pin weep hole for air bleeding
  • Temperature rating: 170°F
  • No gasket or seal included
  • No installation tool included

About the Motorad Standard Product Line

The Motorad Standard line offers dependable engine cooling components designed to meet OEM specifications. This product line focuses on delivering consistent performance and fitment for a range of vehicles, including Chevrolet, Ford, and Mazda models. The 319-170 thermostat is part of this line, providing a balance of quality and compatibility for engine cooling systems.

Product Details and Specifications

This engine coolant thermostat features a sealing flange outside diameter of 2.047 inches, ensuring a secure fit within the cooling system housing. The bypass diameter of 1.09 inches and bypass length of 1.61 inches facilitate proper coolant circulation during engine warm-up. The flange thickness measures 0.05 inches, contributing to a precise seal. The thermostat includes a jiggle pin weep hole, which helps release trapped air and prevents air pockets in the cooling system. It is calibrated to open at 170 degrees Fahrenheit, maintaining optimal engine temperature for efficient operation.

Compatible Vehicles and Applications

  • Chevrolet models including Tracker
  • Ford models such as Probe and MX-3, MX-6
  • Mazda models including 2, 3, 3 Sport, 6, 626, CX-5, Millenia, MPV, Protege, Protege5

This thermostat is suitable for use in these vehicles to regulate engine temperature and support proper coolant flow.

Common Issues Addressed by This Thermostat

  • Engine overheating due to stuck closed thermostat
  • Poor heater performance from improper coolant flow
  • Engine running too cool, affecting fuel efficiency
  • Air pockets in cooling system causing temperature fluctuations
  • Coolant bypass issues during engine warm-up

Installation Notes and Tips

Installation of the Motorad Standard 319-170 thermostat requires removal of the old thermostat and careful placement of the new unit to ensure proper sealing. Note that this part does not include a gasket or seal, so a compatible gasket should be sourced separately. The jiggle pin weep hole must be oriented correctly to allow air to escape during coolant system bleeding. No special installation tools are included, so standard hand tools are sufficient for replacement.

Quality Assurance and Warranty

Motorad Standard thermostats are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Motorad products typically adhere to quality control processes to ensure reliable operation within the specified temperature range.

BrandMotorad
Part Number319-170
PositionStandard
Bypass Diameter1.09 in
Bypass Length1.61 in
Flange Thickness0.05 in
Gasket Or Seal IncludedNo
Installation Tool IncludedNo
Jiggle Pin Weep HoleYes
Sealing Flange Outside Diameter2.047
Temperature170 Deg. F
Temperature (Degree)170

This part fits 110 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2019MazdaCX-52.2LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2018Mazda32.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2018Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2018Mazda3 Sport2.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2018Mazda3 Sport2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2018Mazda62.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2017Mazda32.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2017Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2017Mazda62.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016Mazda32.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016Mazda3 Sport2.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016Mazda3 Sport2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016Mazda62.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016MazdaCX-52.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2016MazdaCX-52.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015Mazda32.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015Mazda3 Sport2.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015Mazda3 Sport2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015Mazda62.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015MazdaCX-52.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2015MazdaCX-52.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014Mazda21.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014Mazda32.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014Mazda3 Sport2.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014Mazda3 Sport2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014Mazda62.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014MazdaCX-52.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2014MazdaCX-52.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2013Mazda21.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2013Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2013MazdaCX-52.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2012Mazda21.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2012Mazda32.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2011Mazda21.5LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2011Mazda3 Sport2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2004ChevroletTracker2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2003MazdaProtege2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2003MazdaProtege52.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002MazdaProtege2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002MazdaProtege1.6LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2002MazdaProtege52.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2001Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2001Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2001MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2001MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2001MazdaProtege2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2000Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2000Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2000MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2000MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
2000MazdaProtege1.8LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1999Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1999Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1999MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1999MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1999MazdaProtege1.8LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1998Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1998Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1998MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1998MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1998MazdaMPV3.0LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997FordProbe2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997FordProbe2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997MazdaMPV3.0LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997MazdaMX-62.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1997MazdaMX-62.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996FordProbe2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996FordProbe2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996MazdaMPV3.0LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996MazdaMX-62.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1996MazdaMX-62.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995FordProbe2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995FordProbe2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995MazdaMillenia2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995MazdaMillenia2.3LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995MazdaMX-31.8LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995MazdaMX-62.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1995MazdaMX-62.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994FordProbe2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994FordProbe2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994MazdaMX-31.8LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994MazdaMX-62.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1994MazdaMX-62.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993FordProbe2.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993FordProbe2.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993Mazda6262.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993Mazda6262.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993MazdaMX-31.8LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993MazdaMX-62.5LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1993MazdaMX-62.0LL4N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard
1992MazdaMX-31.8LV6N/AEngine Coolant Thermostat with 170F and alternate temperature option.; Standard

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

107319-170319709319170NI

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.