Fail-safe 95 degree cooling water thermostat, same temperature as the standard thermostat
Fail-Safe thermostats offer premium, patented technology for better protection than any other thermostat on the market.
When standard thermostats fail, they lock in the closed position and prevent coolant from flowing to the engine, potentially causing serious overheating damage to your engine.
The fail-safe thermostat is designed to lock in the open position if overheating occurs due to a defective cooling system component. This allows for maximum coolant flow and prevents expensive engine damage.
- 100% tested and calibrated
- Manufactured with the highest quality materials from an OE supplier
Fail-safe thermostats are equipped with a unique additional stroke that allows operation in two stages:
- Level 1: Within normal operating temperatures, the Fail-Safe works like any other thermostat.
- Stage 2: If the engine overheats due to a faulty cooling system part, the Fail-Safe features a secondary stroke that activates a precision-machined piston that automatically locks the valve in a wide-open position, allowing coolant to circulate freely.
Note: Once the fail-safe thermostat is locked in the open position, it must be replaced and can no longer be used.
Fits:
| Year | Make | Model | Version | Engine |
| 2024 | Dodge | Durango | Citadel, Pursuit, R/T, R/T Plus, R/T Premium, SRT 392, SRT 392 Plus, SRT 392 Premium, SRT Hellcat, SRT Hellcat Plus, SRT Hellcat Premium, Special Service | 5.7L, 6.2L, 6.4L |
| 2024 | jeep | Grand Cherokee | Overland, Summit, Summit Reserve | 5.7L |
| 2024 | jeep | Grand Cherokee L | Overland, Summit, Summit Reserve | 5.7L |
| 2024 | Ram | 1500 | Big Horn, La ram ie, Limited, Limited Longhorn, Lone Star, Rebel, TRX, Tradesman | 5.7L V8 – Electric/Gas, 5.7L, 6.2L |
| 2024 | Ram | 1500 Classic | Tradesman, Warlock | 5.7L |
| 2023 | Chrysler | 300 | C, S | 5.7L, 6.4L |
| 2023 | Dodge | Challenger | R/T, R/T Scat Pack, R/T Scat Pack Widebody, SRT Hellcat Jailbreak, SRT Hellcat Redeye Jailbreak, SRT Hellcat Redeye Widebody Jailbreak, SRT Hellcat Widebody Jailbreak, SRT Super Stock | 5.7L, 6.2L, 6.4L |
| 2023 | Dodge | Charger | Pursuit, R/T, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody, SRT Hellcat Widebody Jailbreak, Scat Pack, Scat Pack Widebody | 5.7L, 6.2L, 6.4L |
| 2023 | Dodge | Durango | Citadel, R/T, R/T Hemi Orange, R/T Plus, R/T Premium, SRT 392, SRT 392 Plus, SRT 392 Premium, SRT Hellcat, SRT Hellcat Plus, SRT Hellcat Premium | 5.7L, 6.2L, 6.4L |
| 2023 | jeep | Grand Cherokee | Overland, Summit, Summit Reserve, Trailhawk | 5.7L |
| 2023 | jeep | Grand Cherokee L | Overland, Summit, Summit Reserve | 5.7L |
| 2023 | jeep | Grand Wagoneer | Base, Obsidian, Series II, Series III, Series III Obsidian | 6.4L |
| 2023 | jeep | Wagoneer | base | 5.7L V8 – Electric/Gas |
| 2023 | Ram | 1500 | Big Horn, La ram ie, Limited, Limited Longhorn, Lone Star, Rebel, TRX, Tradesman | 5.7L V8 – Electric/Gas, 5.7L, 6.2L |
| 2023 | Ram | 1500 Classic | Tradesman, Warlock | 5.7L |
| 2022 | Chrysler | 300 | S | 5.7L |
| 2022 | Dodge | Challenger | R/T, R/T Scat Pack, R/T Scat Pack Widebody, SRT Hellcat, SRT Hellcat Redeye, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody, SRT Jailbreak, SRT Super Stock | 5.7L, 6.2L, 6.4L |
| 2022 | Dodge | Charger | R/T, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody, SRT Jailbreak, Scat Pack, Scat Pack Widebody | 5.7L, 6.2L, 6.4L |
| 2022 | Dodge | Durango | Citadel, R/T, R/T Plus, SRT 392 | 5.7L, 6.4L |
| 2022 | jeep | Grand Cherokee | Overland, Summit, Summit Reserve, Trailhawk | 5.7L |
| 2022 | jeep | Grand Cherokee L | Overland, Summit, Summit Reserve | 5.7L |
| 2022 | jeep | Grand Wagoneer | Obsidian, Series I, Series II, Series III | 6.4L |
| 2022 | jeep | Wagoneer | Series II, Series III | 5.7L V8 – Electric/Gas |
| 2022 | jeep | Wrangler | Unlimited Rubicon 392 | 6.4L |
| 2022 | Ram | 1500 | Big Horn, La ram ie, Limited, Limited Longhorn, Lone Star, Rebel, TRX, Tradesman | 5.7L V8 – Electric/Gas, 5.7L, 6.2L |
| 2022 | Ram | 1500 Classic | Express, SLT, Tradesman, Warlock | 5.7L |
| 2021 | Chrysler | 300 | S | 5.7L |
| 2021 | Dodge | Challenger | R/T, R/T Scat Pack, R/T Scat Pack Widebody, SRT Hellcat, SRT Hellcat Redeye, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody, SRT Super Stock | 5.7L, 6.2L, 6.4L |
| 2021 | Dodge | Charger | R/T, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody, Scat Pack | 5.7L, 6.2L, 6.4L |
| 2021 | Dodge | Durango | Citadel, Pursuit, R/T, SRT, SRT Hellcat, Special Service | 5.7L, 6.2L, 6.4L |
| 2021 | jeep | Grand Cherokee | Limited, Limited X, Overland, SRT, Summit, Trackhawk, Trailhawk | 5.7L, 6.2L, 6.4L |
| 2021 | jeep | Grand Cherokee L | Overland, Summit, Summit Reserve | 5.7L |
| 2021 | jeep | Wrangler | Unlimited Rubicon 392 | 6.4L |
| 2021 | Ram | 1500 | Big Horn, La ram ie, Limited, Limited Longhorn, Lone Star, Rebel, TRX, Tradesman | 5.7L V8 – Electric/Gas, 5.7L, 6.2L |
| 2021 | Ram | 1500 Classic | Express, SLT, Tradesman, Warlock | 5.7L |
| 2020 | Chrysler | 300 | C, S | 5.7L |
| 2020 | Dodge | Challenger | R/T, R/T Scat Pack, R/T Scat Pack Widebody, SRT Hellcat, SRT Hellcat Redeye, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody | 5.7L, 6.2L, 6.4L |
| 2020 | Dodge | Charger | Pursuit, R/T, SRT Hellcat Widebody, Scat Pack | 5.7L, 6.2L, 6.4L |
| 2020 | Dodge | Durango | Citadel, Pursuit, R/T, SRT, Special Service | 5.7L, 6.4L |
| 2020 | jeep | Grand Cherokee | High Altitude, Limited, Limited X, Overland, SRT, Summit, Trackhawk, Trailhawk | 5.7L, 6.2L, 6.4L |
| 2020 | Ram | 1500 | Big Horn, La ram ie, La ram ie Longhorn, Limited, Lone Star, Rebel, Tradesman | 5.7L V8 – Electric/Gas, 5.7L |
| 2020 | Ram | 1500 Classic | Express, SLT, Special Service, Tradesman, Warlock | 5.7L |
| 2019 | Chrysler | 300 | C, S | 5.7L |
| 2019 | Dodge | Challenger | R/T, R/T Scat Pack, R/T Scat Pack Widebody, SRT Hellcat, SRT Hellcat Redeye, SRT Hellcat Redeye Widebody, SRT Hellcat Widebody | 5.7L, 6.2L, 6.4L |
| 2019 | Dodge | Charger | Pursuit, R/T, SRT Hellcat, Scat Pack | 5.7L, 6.2L, 6.4L |
| 2019 | Dodge | Durango | Citadel, Pursuit, R/T, SRT, Special Service | 5.7L, 6.4L |
| 2019 | jeep | Grand Cherokee | High Altitude, Limited, Limited X, Overland, SRT, Summit, Trackhawk, Trailhawk | 5.7L, 6.2L, 6.4L |
| 2019 | Ram | 1500 | Big Horn, La ram ie, La ram ie Longhorn, Limited, Lone Star, Rebel, Tradesman | 5.7L V8 – Electric/Gas, 5.7L |
| 2019 | Ram | 1500 Classic | Big Horn, Express, Lone Star, SLT, Special Service, Tradesman, Warlock | 5.7L |
| 2018 | Chrysler | 300 | C, S | 5.7L |
| 2018 | Dodge | Challenger | R/T, R/T Scat Pack, SRT 392, SRT Demon, SRT Hellcat, SRT Hellcat Widebody, T/A, T/A 392 | 5.7L, 6.2L, 6.4L |
| 2018 | Dodge | Charger | Daytona, Daytona 392, Pursuit, R/T, R/T Scat Pack, SRT 392, SRT Hellcat | 5.7L, 6.2L, 6.4L |
| 2018 | Dodge | Durango | Citadel, GT, R/T, SRT, SXT, Special Service | 5.7L, 6.4L |
| 2018 | jeep | Grand Cherokee | High Altitude, Limited, Overland, SRT, Summit, Trackhawk, Trailhawk | 5.7L, 6.2L, 6.4L |
| 2018 | Ram | 1500 | Big Horn, Express, La ram ie, La ram ie Longhorn, Limited, Lone Star, Rebel, SLT, Special Service, Sport, Tradesman | 5.7L |
| 2018 | Ram | 2500 | Big Horn, SLT, Tradesman | 5.7L V8 – CNG, 5.7L |
| 2018 | Ram | 3500 | Big Horn, SLT, Tradesman | 5.7L |
| 2017 | Chrysler | 300 | C, C Platinum, S | 5.7L |
| 2017 | Dodge | Challenger | R/T, R/T Scat Pack, SRT 392, SRT Hellcat, T/A, T/A 392 | 5.7L, 6.2L, 6.4L |
| 2017 | Dodge | Charger | Daytona, Daytona 392, Pursuit, R/T, R/T Scat Pack, SRT 392, SRT Hellcat | 5.7L, 6.2L, 6.4L |
| 2017 | Dodge | Durango | Citadel, R/T, Special Service | 5.7L |
| 2017 | jeep | Grand Cherokee | Limited, Overland, SRT, Summit, Trailhawk | 5.7L, 6.4L |
| 2017 | Ram | 1500 | Big Horn, Express, La ram ie, La ram ie Longhorn, Limited, Lone Star, Rebel, SLT, Special Service, Sport, Tradesman | 5.7L |
| 2017 | Ram | 2500 | Big Horn, La ram ie, La ram ie Longhorn, Limited, SLT, Tradesman | 5.7L V8 – CNG, 5.7L |
| 2017 | Ram | 3500 | Big Horn, La ram ie, La ram ie Longhorn, Limited, Lone Star, SLT, Tradesman | 5.7L |
| 2016 | Chrysler | 300 | C, C Platinum, S | 5.7L |
| 2016 | Dodge | Challenger | 392 Hemi Scat Pack Shaker, R/T, R/T Plus, R/T Plus Shaker, R/T Scat Pack, R/T Shaker, SRT 392, SRT Hellcat | 5.7L, 6.2L, 6.4L |
| 2016 | Dodge | Charger | Pursuit, R/T, R/T Road & Track, R/T Scat Pack, SRT 392, SRT Hellcat | 5.7L, 6.2L, 6.4L |
| 2016 | Dodge | Durango | Citadel, R/T, Special Service | 5.7L |
| 2016 | jeep | Grand Cherokee | Limited, Overland, SRT, Summit | 5.7L, 6.4L |
| 2016 | Ram | 1500 | Big Horn, Express, La ram ie, La ram ie Longhorn, Limited, Lone Star, Outdoorsman, Rebel, SLT, Special Service, Sport, Tradesman | 5.7L |
| 2016 | Ram | 2500 | Big Horn, La ram ie, La ram ie Longhorn, Limited, Outdoorsman, SLT, Tradesman | 5.7L V8 – CNG, 5.7L |
| 2016 | Ram | 3500 | Big Horn, La ram ie, La ram ie Longhorn, Limited, SLT, Tradesman | 5.7L |
| 2015 | Chrysler | 300 | C, C Platinum, S | 5.7L |
| 2015 | Dodge | Challenger | R/T, R/T Plus, SRT 392, SRT Hellcat, Scat Pack | 5.7L, 6.2L, 6.4L |
| 2015 | Dodge | Charger | Pursuit, R/T, R/T Road & Track, R/T Scat Pack, SRT 392, SRT Hellcat | 5.7L, 6.2L, 6.4L |
| 2015 | Dodge | Durango | Citadel, Limited, R/T, Special Service | 5.7L |
| 2015 | jeep | Grand Cherokee | Limited, Overland, SRT, Summit | 5.7L, 6.4L |
| 2015 | Ram | 1500 | Big Horn, Express, La ram ie, La ram ie Limited, La ram ie Longhorn, Limited, Lone Star, Outdoorsman, Rebel, SLT, Special Service, Sport, Tradesman | 5.7L |
| 2015 | Ram | 2500 | Big Horn, La ram ie, La ram ie Limited, La ram ie Longhorn, Lone Star, Outdoorsman, SLT, Tradesman | 5.7L V8 – CNG, 5.7L |
| 2015 | Ram | 3500 | Big Horn, La ram ie, La ram ie Limited, La ram ie Longhorn, Lone Star, SLT, Tradesman | 5.7L |
| 2014 | Chrysler | 300 | C, C Luxury, S, SRT8 | 5.7L, 6.4L |
| 2014 | Dodge | Challenger | R/T | 5.7L |
| 2014 | Dodge | Charger | Pursuit, R/T, SRT8 | 5.7L, 6.4L |
| 2014 | Dodge | Durango | Citadel, Limited, R/T, Special Service | 5.7L |
| 2014 | jeep | Grand Cherokee | Limited, Overland, SRT, Summit | 5.7L, 6.4L |
| 2014 | Ram | 1500 | Big Horn, Express, HFE, La ram ie, La ram ie Limited, La ram ie Longhorn, Lone Star, Outdoorsman, SLT, Special Service, Sport, Tradesman | 5.7L |
| 2014 | Ram | 2500 | Big Horn, La ram ie, La ram ie Limited, La ram ie Longhorn, Lone Star, Outdoorsman, SLT, Tradesman | 5.7L V8 – CNG, 5.7L |
| 2014 | Ram | 3500 | Big Horn, La ram ie, La ram ie Limited, La ram ie Longhorn, Lone Star, SLT, Tradesman | 5.7L |
| 2013 | Chrysler | 300 | C, C Luxury, S, SRT8, SRT8 Core | 5.7L, 6.4L |
| 2013 | Dodge | Challenger | R/T, SRT8 | 5.7L, 6.4L |
| 2013 | Dodge | Charger | Pursuit, R/T, SE, SRT8 | 5.7L, 6.4L |
| 2013 | Dodge | Durango | Citadel, Crew, R/T, Special Service | 5.7L |
| 2013 | jeep | Grand Cherokee | Laredo, Limited, Overland, SRT8 | 5.7L, 6.4L |
| 2013 | Ram | 1500 | Big Horn, Express, La ram ie, La ram ie Longhorn, Outdoorsman, R/T, SLT, Sport, Tradesman | 5.7L |
| 2013 | Ram | 2500 | Big Horn, La ram ie, La ram ie Longhorn, Lone Star, Outdoorsman, Power Wagon, SLT, Tradesman | 5.7L V8 – CNG, 5.7L |
| 2013 | Ram | 3500 | Big Horn, La ram ie, La ram ie Longhorn, Lone Star, SLT, Tradesman | 5.7L |
| 2012 | Chrysler | 300 | C, C Luxury, S, SRT8 | 5.7L, 6.4L |
| 2012 | Dodge | Challenger | R/T, R/T Classic, SRT8 | 5.7L, 6.4L |
| 2012 | Dodge | Charger | Pursuit, R/T, SE, SRT8 | 5.7L, 6.4L |
| 2012 | Dodge | Durango | Citadel, Crew, R/T, Special Service | 5.7L |
| 2012 | jeep | Grand Cherokee | Laredo, Limited, Overland, Overland Summit, SRT8 | 5.7L, 6.4L |
| 2012 | Ram | 1500 | Big Horn, Express, La ram ie, La ram ie Longhorn, Outdoorsman, SLT, ST, Sport, Tradesman | 5.7L |
| 2012 | Ram | 2500 | La ram ie, La ram ie Longhorn, Outdoorsman, Power Wagon, SLT, ST | 5.7L V8 – Bi-Fuel, 5.7L |
| 2012 | Ram | 3500 | La ram ie, SLT, ST | 5.7L |
| 2011 | Chrysler | 300 | C | 5.7L |
| 2011 | Dodge | Challenger | R/T, SRT8 | 5.7L, 6.4L |
| 2011 | Dodge | Charger | Pursuit, R/T, SE | 5.7L |
| 2011 | Dodge | Durango | Citadel, Crew, R/T | 5.7L |
| 2011 | jeep | Grand Cherokee | Laredo, Limited, Overland | 5.7L |
| 2011 | Ram | 1500 | Big Horn, La ram ie, La ram ie Longhorn, Outdoorsman, SLT, ST, Sport, Tradesman | 5.7L |
| 2011 | Ram | 2500 | La ram ie, La ram ie Longhorn, Power Wagon, SLT, ST | 5.7L |
| 2011 | Ram | 3500 | La ram ie, SLT, ST | 5.7L |
| 2010 | Chrysler | 300 | C, C SRT8, S | 5.7L, 6.1L |
| 2010 | Dodge | Challenger | R/T, SRT8 | 5.7L, 6.1L |
| 2010 | Dodge | Charger | Pursuit, R/T, SE, SRT8 | 5.7L, 6.1L |
| 2010 | Dodge | Ram 1500 | La ram ie, SLT, ST, Sport, TRX, TRX4 | 5.7L |
| 2010 | Dodge | Ram 2500 | La ram ie, Power Wagon, SLT, ST, TRX | 5.7L |
| 2010 | jeep | Commander | Limited, Sports | 5.7L |
| 2010 | jeep | Grand Cherokee | Laredo, Limited, SRT8 | 5.7L, 6.1L |
| 2009 | Chrysler | 300 | C, C SRT8 | 5.7L, 6.1L |
| 2009 | Chrysler | Aspen | Limited, Limited Hybrid | 5.7L V8 – Electric/Gas, 5.7L |
| 2009 | Dodge | Challenger | R/T, SRT8 | 5.7L, 6.1L |
| 2009 | Dodge | Charger | Pursuit, R/T, SE, SRT8 | 5.7L, 6.1L |
| 2009 | Dodge | Durango | Limited, Limited Hybrid, SE, SLT | 5.7L V8 – Electric/Gas, 5.7L |
| 2009 | Dodge | Ram 1500 | La ram ie, SLT, ST, Sport, TRX, TRX4 | 5.7L |
| 2009 | Dodge | Ram 2500 | La ram ie, Power Wagon, SLT, ST, SXT | 5.7L |
| 2009 | Dodge | Ram 3500 | La ram ie, SLT, ST | 5.7L |
| 2009 | jeep | Commander | Limited, Overland | 5.7L |
| 2009 | jeep | Grand Cherokee | Limited, Overland, SRT8 | 5.7L, 6.1L |
| 2008 | Chrysler | 300 | C, C SRT8 | 5.7L, 6.1L |
| 2008 | Chrysler | Aspen | Limited | 4.7L V8 – Flex, 4.7L, 5.7L |
| 2008 | Dodge | Challenger | SRT8 | 6.1L |
| 2008 | Dodge | Charger | Pursuit, R/T, SE, SRT8 | 5.7L, 6.1L |
| 2008 | Dodge | Durango | Adventurer, Limited, SLT, SXT | 4.7L V8 – Flex, 4.7L, 5.7L |
| 2008 | Dodge | Magnum | R/T, SRT8 | 5.7L, 6.1L |
| 2008 | Dodge | Ram 1500 | La ram ie, SLT, ST | 4.7L V8 – Flex, 4.7L, 5.7L |
| 2008 | Dodge | Ram 2500 | La ram ie, Power Wagon, SLT, ST, SXT | 5.7L |
| 2008 | Dodge | Ram 3500 | La ram ie, SLT, ST | 5.7L |
| 2008 | jeep | Commander | Limited, Overland, Sport | 4.7L V8 – Flex, 4.7L, 5.7L |
| 2008 | jeep | Grand Cherokee | Laredo, Limited, Overland, SRT8 | 4.7L V8 – Flex, 4.7L, 5.7L, 6.1L |
| 2007 | Chrysler | 300 | C, C SRT8 | 5.7L, 6.1L |
| 2007 | Chrysler | Aspen | Limited | 5.7L |
| 2007 | Dodge | Charger | Pursuit, R/T, SRT8 | 5.7L, 6.1L |
| 2007 | Dodge | Durango | Adventurer, Limited, SLT, SXT | 5.7L |
| 2007 | Dodge | Magnum | R/T, SRT8 | 5.7L, 6.1L |
| 2007 | Dodge | Ram 1500 | La ram ie, SLT, ST, Sport, TRX4 | 5.7L |
| 2007 | Dodge | Ram 2500 | La ram ie, Power Wagon, SLT, ST, Sport, TRX4 | 5.7L |
| 2007 | Dodge | Ram 3500 | La ram ie, SLT, ST, Sport | 5.7L |
| 2007 | jeep | Commander | Limited, Overland | 5.7L |
| 2007 | jeep | Grand Cherokee | Limited, Overland, SRT8 | 5.7L, 6.1L |
| 2006 | Chrysler | 300 | C | 5.7L |
| 2006 | Dodge | Charger | R/T, SRT8 | 5.7L, 6.1L |
| 2006 | Dodge | Durango | Limited, SLT | 5.7L |
| 2006 | Dodge | Magnum | R/T, SRT8 | 5.7L, 6.1L |
| 2006 | Dodge | Ram 1500 | La ram ie, SLT, ST | 5.7L |
| 2006 | Dodge | Ram 2500 | La ram ie, SLT, ST | 5.7L |
| 2006 | Dodge | Ram 3500 | La ram ie, SLT, ST | 5.7L |
| 2006 | jeep | Commander | Limited | 5.7L |
| 2006 | jeep | Grand Cherokee | Limited, Overland, SRT8 | 5.7L, 6.1L |
| 2005 | Chrysler | 300 | C | 5.7L |
| 2005 | Dodge | Durango | Limited, SLT | 5.7L |
| 2005 | Dodge | Magnum | R/T | 5.7L |
| 2005 | Dodge | Ram 1500 | SLT, ST | 5.7L |
| 2005 | Dodge | Ram 2500 | SLT, ST | 5.7L |
| 2005 | Dodge | Ram 3500 | SLT, ST | 5.7L |
| 2005 | jeep | Grand Cherokee | Limited | 5.7L |
| 2004 | Dodge | Durango | Limited, SLT | 5.7L |
| 2004 | Dodge | Ram 1500 | SLT, ST | 5.7L |
| 2004 | Dodge | Ram 2500 | SLT, ST | 5.7L |
| 2004 | Dodge | Ram 3500 | SLT, ST | 5.7L |
| 2003 | Dodge | Ram 1500 | SLT, ST | 5.7L |
| 2003 | Dodge | Ram 2500 | SLT, ST | 5.7L |
| 2003 | Dodge | Ram 3500 | SLT, ST | 5.7L |
Attention: since the gasket is included in the scope of delivery, you do not need to order the thermostat housing gasket separately!
TRX62 –
Fast shipping, goods 1A, everything great.
Verified purchase. More information
Ben –
Fast delivery and well-packaged goods. Everything was excellent, highly recommended from my side.
Verified purchase. More information
MVH –
Fast delivery, especially the parts ordered fit, price performance ratio is good.
Satisfied with all parts ordered. Email inquiry was answered quickly.
Verified purchase. More information
Tibor Orsos –
You guys saved the day. My parts arrived a day earlier than expected and fit perfectly. Thanks Kraftwerk
Verified purchase. More information
Manfred H –
Because of an engine failure on my Grand Cherokee SRT, I was looking for parts and received the best advice here.
The parts arrived promptly as promised and were well packaged.
The workshop had questions during installation, but these were also answered quickly and in detail.
Verified purchase. More information
Chally21 –
All good, recommended!
Verified purchase. More information