Motorad ST22 Engine Coolant Reservoir Cap

Motorad ST22 Safety Lever Reservoir Cap

The Motorad ST22 engine coolant reservoir cap is built for controlled pressure release before the cap is removed, helping reduce the risk of hot coolant spray. It is made to OEM specifications and uses stainless steel, plastic, and rubber components for dependable sealing and service fitment.

Key Features

• Safety lever design for quick pressure release
• 22 PSI pressure rating with a 20-24 PSI SAE pressure range
• Proper relief and vacuum valves for cooling system operation
• Stainless steel finish with stainless steel, plastic, and rubber construction
• Fits open and closed coolant recovery systems
• Designed for easy installation and removal
• Cap depth: 1.48 in; filler neck outside diameter: 1.54 in; valve OD: 1.54 in

Product Details

Motorad Safety Lever line caps are built for serviceability and controlled cooling-system pressure management. The ST22 is a direct-fit style coolant reservoir cap for applications that call for a 22 PSI rating, including Dodge Challenger, Dodge Charger, Dodge Viper, Fiat 500, Jeep Grand Cherokee, Chrysler 300, Chrysler Aspen, and Dodge Durango applications listed below. This part cross-references Carlson 7522 for the same application.

Common Uses

• Replacing a worn or leaking coolant reservoir cap
• Restoring proper pressure retention in the cooling system
• Addressing coolant loss caused by a weak cap seal
• Improving safe pressure venting before cap removal
• Supporting stable operation in open or closed recovery systems

Installation Notes

Verify the filler neck outside diameter and pressure rating before installation. The ST22 is listed for 2021-2023 Dodge Challenger, 2016-2023 Dodge Charger, 2011-2020 Dodge Challenger, 2017 Dodge Viper, 2015-2016 Dodge Viper, 2008-2010 Dodge Viper, 2013-2015 Dodge Charger, 2012-2015 Fiat 500, 2010 Fiat 500, 2014-2015 Jeep Grand Cherokee, 2012-2014 Chrysler 300, 2011 Fiat 500, 2009 Fiat 500, 2007-2009 Chrysler Aspen, and 2006-2009 Dodge Durango. Fits 2021-2023 Dodge Challenger, N/A; Fits 2016-2023 Dodge Charger, N/A; Fits 2011-2020 Dodge Challenger, N/A; Fits 2017 Dodge Viper, N/A; Fits 2015-2016 Dodge Viper, N/A; Fits 2008-2010 Dodge Viper, N/A; Fits 2013-2015 Dodge Charger, N/A; Fits 2012-2015 Fiat 500, N/A; Fits 2010 Fiat 500, N/A; Fits 2014-2015 Jeep Grand Cherokee, N/A; Fits 2012-2014 Chrysler 300, N/A; Fits 2011 Fiat 500, N/A; Fits 2009 Fiat 500, N/A; Fits 2007-2009 Chrysler Aspen, N/A; Fits 2006-2009 Dodge Durango, N/A.

Quality Assurance

This cap is manufactured to meet OEM specifications and is quality tested for demanding automotive cooling systems. The Motorad ST22 is built with proper relief and vacuum valves to support consistent pressure control during normal cooling-system operation.