ATS NAG1 / 722.6 / W5A580 Thermal Bypass Valve Upgrade for 2002-2018 Jeep / 2005-Current Dodge, Chrysler, Mercedes

ATS NAG1 / 722.6 / W5A580 Thermal Bypass Valve Upgrade Protect your investment and eliminate the single greatest hidden threat to your transmission's survival. The **ATS Thermal Bypass Valve Upgrade** replaces the failure-prone factory thermostatic valve in NAG1, 722.6, and W5A580 transmissions, ensuring full, unrestricted cooling fluid flow at all times. Product Features & Benefits Guaranteed Continuous Cooling: Eliminates the restrictive factory thermostat to ensure 100% of your transmission fluid flows through the cooler at all times. Prevent Catastrophic Failure: Drastically reduces the risk of complete internal melting and torque converter failure caused by extreme fluid temperatures. Easy DIY Garage Install: A straightforward drop-in valve insert upgrade that can be completed by the end-user in their garage with basic hand tools in a very short amount of time. Heavy-Duty Construction: Engineered by ATS to withstand aggressive driving, towing, and high-performance applications. Why This Upgrade is Mandatory For Your Vehicle If you own a vehicle equipped with the Mercedes-designed 5-speed automatic transmission (known variously as the **722.6, NAG1, or W5A580**), you are driving around with a ticking time bomb. The factory cooling system utilizes an inline thermostatic bypass valve designed to keep fluid bypassing the transmission cooler until the vehicle warms up. The Fatal Flaw: Over time, the factory thermal valve is notoriously known to get stuck in the closed position. When this happens, it completely restricts all transmission fluid flow to the transmission cooler. The terrifying reality is that while your transmission is literally cooking itself to death, a reservoir of perfectly useful, chilled transmission fluid is sitting completely trapped in the cooler, unable to return and save your internal components because the factory valve refuses to open. The 30-Minute Countdown to Disaster When a thermal bypass valve sticks closed, the window of time you have to notice and catch the rising temperatures is incredibly small. Even under completely normal, light-load driving conditions, a stuck bypass valve can overheat and permanently ruin a transmission in under 30 minutes. Because factory dashboard gauges rarely react fast enough to rapid internal fluid spikes, it is incredibly easy to miss the exact moment the valve fails. Usually, by the time you notice a warning light or feel a slipping gear, it is already too late—your transmission fluid has been thermally compromised, and permanent internal clutch and torque converter damage has already begun. The ATS Thermal Bypass Valve Upgrade is a permanent, cheap insurance policy that completely removes this failure point from your vehicle. Vehicle Application Guide This ATS Upgrade is universally compatible with Chrysler, Dodge, Jeep, and RAM vehicles equipped with the 5-speed 722.6 / NAG1 / W5A580 automatic transmission utilizing a factory thermostatic bypass block: Years Make Model Engine Compatibility 2012–2018 Jeep Wrangler (JK / JKU) 3.6L V6 2005–2013 Jeep Grand Cherokee 3.7L V6, 4.7L V8, 5.7L HEMI, 6.1L SRT8, 3.0L CRD Diesel 2006–2010 Jeep Commander 3.7L V6, 4.7L V8, 5.7L HEMI 2006–2018 Dodge Charger 2.7L/3.5L V6, 5.7L HEMI, 6.1L/6.4L SRT8 2008–2014 Dodge Challenger 3.5L V6, 5.7L HEMI, 6.1L/6.4L SRT8 2005–2008 Dodge Magnum 2.7L/3.5L V6, 5.7L HEMI, 6.1L SRT8 2011–2013 Dodge Durango 3.6L Pentastar V6 2007–2011 Dodge Nitro 4.0L V6 2005–2014 Chrysler 300 / 300C 2.7L/3.5L V6, 5.7L HEMI, 6.1L SRT8, 3.0L Diesel 2004–2008 Chrysler Crossfire 3.2L V6 / 3.2L Supercharged V6 2006–2014 Mercedes Sprinter Van 2.7L / 3.0L V6 CRD Turbo Diesel Note: Please verify your vehicle features the external transmission line thermostat assembly prior to ordering.