POW352003 Valve Spring Compressor Compatible with Dodge Ram 2500 3500 5.7L 6.1L 6.2L 6.4L HEMI Engines. Compatibility:Compatible with Dodge Ram 2500 3500 5.7L 6.1L 6.2L 6.4L HEMI Engines. Feature:The unique lead screw and cage design effectively compresses the valve spring, providing hands-free access to the valve lock with ease and simplifying your workflow.