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Motorad
Fail-SafeMotorad 7301-170 Engine Coolant Thermostat
| Brand | Motorad 7301-170 |
|---|---|
| Sealing Flange Outside Diameter | 2.52 |
| Gasket Or Seal Included | Yes |
| Jiggle Pin Weep Hole | No |
| Bypass Diameter | 1.14 in |
| Bypass Length | 1.65 in |
| Flange Thickness | 0.068 in |
| Gasket/Seal Material | Rubber |
| Gasket/Seal Material | Rubber |
| Installation Tool Included | No |
| Number Of Seals | 1 |
| Temperature | 170 deg. f |
| Temperature (Degree) | 170 |
| Product line | Fail-Safe |
| Fits | INFINITI, Mitsubishi, and Nissan · 34 vehicles |
OE supplier quality. Built with OEM materials and manufacturing processes.
Copper case. Wax compound responds quickly to coolant temperature changes.
Seal included. Rubber gasket or seal is included where applicable.
Cross-references Four Seasons 73017, Motorad 7301-170 and 97301170 for the same application. See all 6.
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Engine Coolant Thermostat for OE-Style Cooling Control
The Motorad Fail-Safe 7301-170 engine coolant thermostat is built for precise temperature control in demanding cooling systems. It opens at 170°F and uses a fail-safe design that locks open during overheating to keep coolant flowing.
Fits 1991-1999 Mitsubishi 3000GT, 1995-1996 Mitsubishi Montero, 1997-2000 Mitsubishi Diamante, 2005-2006 Mitsubishi Montero Sport, 2008-2012 Mitsubishi Montero, 2008 Nissan Frontier, 2008 Nissan Pickup, 2014-2015 Nissan NV350 Urvan, 2016-2019 INFINITI Q70, and 2016-2019 INFINITI Q70L.
Key Features
- Motorad Fail-Safe line thermostat with OE-style operating behavior
- 170°F temperature rating for controlled coolant flow
- Fail-safe design locks open during overheating events
- Copper case and wax compound for quick response to coolant temperature changes
- Offset design with air relief valve
- Rubber seal included for installation
- OEM specifications and manufacturing processes
- Sealing flange outside diameter: 2.52 in
- Bypass diameter: 1.14 in
- Bypass length: 1.65 in
- Flange thickness: 0.068 in
Product Details
The Motorad 7301-170 is an engine coolant thermostat for vehicles that require a 170°F OE-spec temperature setting. Its copper case and wax compound are engineered for fast reaction to coolant temperature changes, while the offset layout and air relief valve support proper cooling-system operation. This part cross-references Four Seasons 73017 for the same application.
Use this thermostat when servicing Mitsubishi 3000GT, Montero, Diamante, and Montero Sport cooling systems, as well as select Nissan Frontier, Pickup, and NV350 Urvan applications and INFINITI Q70 and Q70L models. The Motorad 7301-170 is built to match the original thermostat style and sealing requirements where applicable.
Common Problems This Part Can Address
- Engine running hotter than normal due to a thermostat that is sticking closed
- Delayed coolant circulation after startup
- Temperature fluctuation from worn thermostat internals
- Cooling-system service needs on OE-spec 170°F applications
- Overheating protection needs in demanding driving conditions
Installation Notes
Install with the included rubber seal and verify the housing and sealing surfaces are clean before assembly. Confirm the 170°F specification matches the vehicle’s original thermostat requirement before installation. Follow the vehicle service procedure for coolant refill and air bleeding to help prevent trapped air in the system.
Quality Assurance
Motorad manufactures this Fail-Safe thermostat using OEM-quality materials and OE-supplier standards. It is produced to OEM specifications and processes for consistent fit and temperature control in supported applications.
This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | INFINITI | Q70 | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2019 | INFINITI | Q70L | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2018 | INFINITI | Q70 | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2018 | INFINITI | Q70L | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2017 | INFINITI | Q70 | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2017 | INFINITI | Q70L | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2016 | INFINITI | Q70 | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2016 | INFINITI | Q70L | 5.6L | V8 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2015 | Nissan | NV350 Urvan | 2.5L | L4 | GAS | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2014 | Nissan | NV350 Urvan | 2.5L | L4 | GAS | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2012 | Mitsubishi | Montero | 3.8L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2011 | Mitsubishi | Montero | 3.8L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2010 | Mitsubishi | Montero | 3.8L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2009 | Mitsubishi | Montero | 3.8L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2008 | Mitsubishi | Montero | 3.8L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2008 | Nissan | Frontier | 2.4L | L4 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2008 | Nissan | Pickup | 2.4L | L4 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2006 | Mitsubishi | Montero Sport | 3.5L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2005 | Mitsubishi | Montero Sport | 3.5L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 2000 | Mitsubishi | Diamante | 3.5L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 1999 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1999 | Mitsubishi | Diamante | 3.5L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 1998 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1998 | Mitsubishi | Diamante | 3.5L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 1997 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1997 | Mitsubishi | Diamante | 3.5L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 1996 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1996 | Mitsubishi | Montero | 3.0L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 1995 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1995 | Mitsubishi | Montero | 3.0L | V6 | — | N/A | Fail-Safe (R) thermostat locks open at 170F to allow coolant flow in overheating, includes seal, alternate temperature option.; Fail-Safe |
| 1994 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1993 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1992 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| 1991 | Mitsubishi | 3000GT | 3.0L | V6 | — | 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; Includes seal; OE Specified Temperature; Fail-Safe |
| No rows match your filter. | |||||||
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 73017Motorad — 7301-17097301170NIP7301-170SS170-1037