Motorad
Fail-Safe

Motorad 7242-170 Engine Coolant Thermostat

Brand Motorad 7242-170
Sealing Flange Outside Diameter 2.04
Gasket Or Seal Included No
Jiggle Pin Weep Hole Yes
Bypass Diameter 1.09 in
Bypass Length 1.37 in
Flange Thickness 0.05 in
Installation Tool Included No
Temperature 170 deg. f
Temperature (Degree) 170
Product line Fail-Safe
Fits Acura, Ford, Honda, Isuzu, and Toyota · 83 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 included. Offset design helps purge trapped air where applicable.

Cross-references Motorad 7242-170, 1601-18243 and 74270 for the same application. See all 7.

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Motorad Fail-Safe Thermostat 7242-170

The Motorad Fail-Safe 7242-170 engine coolant thermostat is built for precise temperature control in demanding cooling systems. With a 170 degree F rating, copper case construction, and a wax compound for quick reaction to coolant temperature changes, it supports stable engine warm-up and cooling performance.

Compatible With select Honda Civic, Accord, CR-V, Prelude, CRX, Acura Integra, CL, Legend, Isuzu Oasis, Toyota Pickup, and Ford Transit applications, this thermostat is a direct-fit cooling system service part for a wide range of import and light-duty vehicles.

Key Features

  • 170 degree F thermostat rating for OE-style temperature control
  • Copper case and wax compound for rapid response to coolant temperature changes
  • Fail-Safe design locks open during overheating events
  • Offset design with air relief valve where applicable
  • Jiggle pin weep hole included for air bleeding
  • OEM-style seals used where applicable
  • Motorad Fail-Safe line engineered to OE specifications and processes

Product Details

Motorad 7242-170 is an engine coolant thermostat designed to meet OEM quality materials and safety standards as an OE supplier product. The Fail-Safe line is built to remain open if the thermostat is exposed to overheating, helping maintain coolant flow when the cooling system is under stress. This makes it a practical choice for drivers servicing Honda Civic and Accord cooling systems, as well as Acura Integra and other listed applications that require a 170F thermostat.

This part cross-references 74270 and P7242-170 for the same application.

What It Helps Address

  • Engine running hotter than normal due to a worn thermostat
  • Delayed coolant circulation during warm-up
  • Temperature instability in the cooling system
  • Overheating events caused by thermostat failure
  • Service replacement for OE-spec thermostat applications

Installation Notes

  • Verify the 170 degree F specification before installation.
  • Check sealing flange dimensions and bypass measurements against the original part.
  • Inspect the housing, coolant passages, and mating surfaces for corrosion or debris.
  • Bleed trapped air from the cooling system after installation to help prevent hot spots.
  • Use the vehicle service procedure for coolant refill and thermostat orientation.

Quality Assurance

Manufactured by Motorad using OEM specifications and processes, this Fail-Safe thermostat is built with OE-supplier quality standards for cooling system service.

This part fits 83 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2014FordTransit—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2013FordTransit—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2005HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2004HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2003HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2002HondaAccord—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2001AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2001HondaCR-V—2.0LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2000AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
2000HondaCR-V—2.0LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1999AcuraCL—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1999AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1999IsuzuOasis—2.3LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1998AcuraCL—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1998AcuraIntegra—1.8LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1998IsuzuOasis—2.3LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1997AcuraCL—2.2LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1997AcuraIntegra—1.8LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1997HondaAccord—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1997IsuzuOasis—2.2LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1996AcuraIntegra—1.8LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1996HondaAccord—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1996HondaPrelude—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1996IsuzuOasis—2.2LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1995AcuraIntegra—1.8LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1995HondaPrelude—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1994AcuraIntegra—1.8LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1994HondaPrelude—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1994HondaPreludeS2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1993AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1993AcuraIntegra—1.7LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1993HondaAccord—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1993HondaPrelude—2.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1993HondaPreludeS2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1992AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1992AcuraIntegra—1.7LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1992HondaAccord—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1991AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1991HondaAccord—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1991HondaCivic—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1991HondaCivic—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1991HondaCRX—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1991HondaCRX—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1990AcuraIntegra—1.8LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1990AcuraLegend—2.7LV6N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1990HondaAccord—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1990HondaCivic—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1990HondaCivic—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1990HondaCRX—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1990HondaCRX—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1989AcuraIntegra—1.6LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1989AcuraLegend—2.7LV6N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1989HondaCivic—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1989HondaCivic—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1989HondaCRX—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1989HondaCRX—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1988AcuraIntegra—1.6LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1988AcuraLegend—2.7LV6N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1988HondaCivic—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1988HondaCivic—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1988HondaCRX—1.6LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1988HondaCRX—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1987AcuraIntegra—1.6LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1987AcuraLegend—2.7LV6N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1987AcuraLegend—2.5LV6N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1987HondaCivic———N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1987HondaCivic—1.5LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1987HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1986AcuraIntegra—1.6LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1986AcuraLegend—2.5LV6N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1986HondaCivic———N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1986HondaCivic—1.5LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1986HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1986ToyotaPickup—2.4LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1985HondaCivic—1.5LL4N/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."; Temperature 170F; OE Specified Temperature; Fail-Safe
1985HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1985ToyotaPickup—2.4LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1984HondaCivic—1.5LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1984HondaCivic—1.3LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1984ToyotaPickup—2.4LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1983ToyotaPickup—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1982ToyotaPickup—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
1981ToyotaPickup—2.2LL4N/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."; Temperature 170F; Alternate Temperature Option; Fail-Safe
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Motorad — 7242-1701601-182437427097242170NIP7242-170SS170-2427