Belt Tensioner Pulley Assembly 4854089AB PHILTOP Fit For Grand Cherokee 1999-2004, Wrangler 2000-2006, Automatic Drive Belt Tens

?Fitment? -- PHILTOP Belt Tensioner with Pulley Replacement For Grand Cherokee 1999-2004, Wrangler 2000-2006?OE Reference Number? -- 4854089AB, Manufactured using the same or improved technology and quality materials as the original equipment manufacturer (OEM) components to ensure a factory match?Labyrinth Seal Protection? -- PHILTOP automatic drive belt tensioner assembly with pulley adopts labyrinth seal to protect internal components, meeting or exceeding the service life requirements of the original manufacturer?Long service life? -- The damping system tested hundreds of times absorbs extreme vibration to improve the life of the tensioner as well as belts and accessories?Strong stability? -- Torsion round spring design used in PHILTOP tensioner provides reliable and stable tension