Compatible with 5.7L Hemi: Fits for 2003–present Ram / Dodge Ram Pickup 2004–2009, 2011–present Dodge Durango 2005–present Chrysler 300 300C 2005–2008 Dodge Magnum R/T 2005–present Dodge Charger R/T 2005–present Jeep Grand Cherokee 2006–2010 Jeep Commander 2007–2009 Chrysler Aspen 2009–present Dodge Challenger Compatible with 6.1L Hemi: Fits for 2005–2010 Chrysler 300C SRT–8 2005–2008 Dodge Magnum SRT-8 2006–2010 Dodge Charger SRT-8 2006–2010 Jeep Grand Cherokee SRT-8 2008–2010 Dodge Challenger SRT-8 Compatible with 6.2L Hemi (Hellcat and Demon): Fits for 2015–present Dodge Challenger SRT Hellcat 2015–present Dodge Charger SRT Hellcat 2018–present Dodge Challenger SRT Demon 2018–present Jeep Grand Cherokee SRT Trackhawk Compatible with 6.4L Hemi (392 Apache): Fits for 2011- Present Dodge Challenger 2012- Present Dodge Charger SRT8, SRT8 Super Bee, SRT 392, R/T Scat Pack 2014- Present Ram 2500/3500 Accurate compatibility - Specifically designed to fit Dodge HEMI engines, including 5.7L, 6.1L, 6.2L, and 6.4L models, ensuring precise and accurate compatibility Superior Material - Crafted from high-strength stainless steel, this valve spring compressor offers exceptional durability and reliable performance, making it an essential tool for your engine maintenance needs Effortless Installation - With a convenient bolt-down design, this tool enables quick and easy installation, saving you time and effort during your maintenance tasks Innovative Design - The unique lead screw and cage design efficiently compresses the valve spring, providing hands-free access to the valve locks with ease, streamlining your workflow Reliable Customer Support - We are confident in the quality of our products and offer a 30-day money-back guarantee. If you are not 100% satisfied with our products, simply return it for a full-refund. Additionally, we offer premium support and a 1-year warranty for your peace of mind.