HomeBelts and Cooling > Thermostat and HousingMotorad 2323-180 Engine Coolant Thermostat
Part #: 2323-180

Motorad 2323-180 Engine Coolant Thermostat

High Flow
⚙️ 22 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦High Flow
🚗Fitment: Kia and Mazda, 626, B2600, MX-6, Rio, and Sephia
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Motorad 2323-180 High Flow Thermostat

The Motorad 2323-180 is a 180 degree F engine coolant thermostat built for OE-style cooling performance in demanding applications. It uses OEM-quality materials and manufacturing processes, with a copper case and wax compound for quick reaction to coolant temperature changes.

Motorad High Flow thermostats are engineered for steady coolant control and consistent operation in vehicles that need reliable temperature regulation. This 2323-180 unit includes an offset design, an air relief valve, and OEM-style seals where applicable.

  • 180 degree F engine coolant thermostat
  • High Flow design for demanding cooling systems
  • Copper case and wax compound for rapid temperature response
  • Offset design for proper OE-style fitment
  • Air relief valve included
  • Jiggle pin weep hole included
  • Sealing flange outside diameter: 2.05 in
  • Flange thickness: 0.05 in
  • Gasket or seal included: No
  • Installation tool included: No

Detailed Application Coverage

Fits 2001-2003 Kia Rio, N/A. Fits 1994-2000 Kia Sephia, N/A. Fits 1990-1993 Mazda B2600, N/A. Fits 1986-1989 Mazda 626, N/A. Fits 1988 Mazda MX-6, N/A. This part number, Motorad 2323-180, also cross-references Bosch 16168 for the same application.

What This Thermostat Helps Address

  • Engine running too cool or taking too long to reach operating temperature
  • Temperature swings caused by a worn thermostat
  • Coolant flow control issues in the engine cooling system
  • Overheating concerns related to thermostat sticking or delayed opening
  • OE replacement needs for Kia Rio, Kia Sephia, Mazda B2600, Mazda 626, and Mazda MX-6 applications

Installation Notes and Tips

Verify the 180 degree F temperature rating and sealing flange dimensions before installation. Because no gasket or seal is included, reuse only if serviceable or source the correct seal separately. Clean the housing mating surfaces thoroughly and confirm the air relief valve and jiggle pin orientation match the original setup.

Quality Assurance

Manufactured to OEM specifications by an OE supplier using OEM-quality materials and safety standards. The Motorad 2323-180 is built to meet the demands of automotive cooling systems while maintaining OE-style operation.

BrandMotorad
Part Number2323-180
PositionHigh Flow
Sealing Flange Outside Diameter2.05
Gasket Or Seal IncludedNo
Jiggle Pin Weep HoleYes
Flange Thickness0.05 in
Installation Tool IncludedNo
Temperature180 deg. f
Temperature (Degree)180

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003KiaRio1.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
2002KiaRio1.5LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
2001KiaRio1.5LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
2000KiaSephia1.8LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1999KiaSephia1.8LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1998KiaSephia1.8LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1997KiaSephia1.8LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1997KiaSephia1.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1996KiaSephia1.8LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1996KiaSephia1.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1995KiaSephia1.8LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1995KiaSephia1.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1994KiaSephia1.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1993MazdaB26002.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1992MazdaB26002.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1991MazdaB26002.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1990MazdaB26002.6LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1989Mazda6262.2LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1988Mazda6262.2LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1988MazdaMX-62.2LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1987Mazda6262.0LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow
1986Mazda6262.0LL4N/ACompatible with original equipment 180°F engine coolant thermostat.; High Flow

* 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:

161682323-1806323892323180NIP16168

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