New design replaces the cap and stays in the car like a traditional dipstick. Direct-fit and locks into your factory filler tube without modification. Quick and easy trans fluid check without going to the dealer. <BR> <BR> FITS:<BR> <BR> - 2006-2012 Chrysler 300 - 6.1L/6.4L V8 and NAG1 /W5A580 5 Speed Trans<BR> <BR> - 2008-2012 Dodge Challenger - 6.1L/6.4L V8 and NAG1 /W5A580 5 Speed Trans<BR> <BR> - 2006-2012 Dodge Charger - 6.1L/6.4L V8 and NAG1 /W5A580 5 Speed Trans<BR> <BR> - 2005-2008 Dodge Magnum - 6.1L/6.4L V8 and NAG1 /W5A580 5 Speed Trans<BR> oil fluid