Motorad
Fail-Safe

Motorad 7421-180 Engine Coolant Thermostat

Brand Motorad 7421-180
Sealing Flange Outside Diameter 2.05
Gasket Or Seal Included No
Jiggle Pin Weep Hole Yes
Flange Thickness 0.05 in
Installation Tool Included No
Temperature 180 deg. f
Temperature (Degree) 180
Product line Fail-Safe
Fits Chevrolet and Suzuki · 43 vehicles

OE supplier quality. Built with OEM materials and processes for dependable cooling performance.

Rapid temperature response. Copper case and wax compound react quickly to coolant changes.

Air relief valve. Includes an offset design and OEM-style seals where applicable.

Cross-references Motorad 7421-180, 74218 and 97421180 for the same application. See all 6.

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Motorad Fail-Safe Thermostat 7421-180

The Motorad Fail-Safe 7421-180 engine coolant thermostat is built for OE-style cooling system service with a 180 degree F opening temperature. It uses a copper case and wax compound for quick reaction to coolant temperature changes, along with an offset design and air relief valve where applicable.

Compatible with Suzuki Swift, Grand Vitara, SX4, SX4 Crossover, Esteem, and Vitara applications, this thermostat is a direct-fit cooling system service part for select Chevrolet Tracker and Suzuki models. The Motorad Fail-Safe line is engineered to lock in the open position if overheating occurs, helping coolant continue to circulate.

Key Features

  • Engine coolant thermostat with 180 degree F temperature rating
  • Fail-Safe design locks open during overheating events
  • Copper case and wax compound for responsive temperature control
  • OE-specification manufacturing and processes
  • Offset design with air relief valve where applicable
  • OEM-style seals included where applicable
  • Sealing flange outside diameter: 2.05 in
  • Flange thickness: 0.05 in
  • Jiggle pin weep hole included

Product Details

Motorad 7421-180 is an OE supplier thermostat designed for demanding automotive cooling systems. The Fail-Safe product line is intended for drivers who need a thermostat that follows original equipment temperature control requirements while adding a fail-open safety feature. This part cross-references 74218 and P7421-180 for the same application.

Use this thermostat for select 1999-2003 and 2005-2008 Chevrolet Tracker models, plus 2002-2017 Suzuki Esteem, Vitara, Swift, Grand Vitara, SX4, and SX4 Crossover applications. For buyers searching for a 180F thermostat for Suzuki SX4 or a thermostat for Chevrolet Tracker cooling system repair, part number 7421-180 is the relevant OE-style replacement.

Common Uses

  • Engine runs hotter than normal due to a sticking thermostat
  • Coolant temperature fluctuates during driving or idle
  • Heater output drops because coolant flow is restricted
  • Overheating diagnosis points to thermostat replacement
  • Cooling system service on select Suzuki and Chevrolet Tracker vehicles

Installation Notes

Confirm the 180 degree F temperature specification and flange dimensions before installation. This thermostat does not include a gasket or seal, and no installation tool is included. Clean the housing mating surfaces, inspect the thermostat housing, and verify the air relief valve and jiggle pin orientation during assembly.

For fitment-specific searches, this part is commonly selected for 2007-2017 Suzuki Swift, 2009-2015 Suzuki Grand Vitara, 2007-2014 Suzuki SX4, 2012 Suzuki SX4 Crossover, 2005-2008 Chevrolet Tracker, 1999-2003 Chevrolet Tracker, 2003 Suzuki Vitara, and 2002 Suzuki Esteem.

Quality Assurance

Motorad manufactures this thermostat with OEM-quality materials and safety standards as an OE supplier, using OEM specifications and processes for consistent cooling system performance.

This part fits 43 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017SuzukiSwift1.6LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2017SuzukiSwift1.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2016SuzukiSwift1.6LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2016SuzukiSwift1.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2015SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2015SuzukiSwift1.6LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2015SuzukiSwift1.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2014SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2014SuzukiSwift1.6LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2014SuzukiSwift1.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2014SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2013SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2013SuzukiSwift1.6LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2013SuzukiSwift1.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2013SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2012SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2012SuzukiSwift1.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2012SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2012SuzukiSX4 Crossover2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2011SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2011SuzukiSwift1.5LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2011SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2010SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2010SuzukiSwift1.5LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2010SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2009SuzukiGrand Vitara2.4LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2009SuzukiSwift1.5LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2009SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2008ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2008SuzukiSwift1.5LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2008SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2007ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2007SuzukiSwift1.5LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2007SuzukiSX42.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2006ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2005ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2003ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2003SuzukiVitara2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2002ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2002SuzukiEsteem1.8LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2001ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
2000ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
1999ChevroletTracker2.0LL4N/A"The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." the open position, allowing coolant to continue to flow in the event of overheating."; Temperature 180F; OE Specified Temperature; Fail-Safe
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Motorad — 7421-1807421897421180NIP7421-180SS180-1247