Feature: Belt tensioner pulleys maintain belt tension to keep it taut, reducing wear and vibration and extending the life of tensioners, belts and accessories. Belt drive tensioner is made of durable materials, sturdy and durable, with stable performance and smooth rotation Directly replace the damaged belt tensioner pulley to restore tensioner performance. This is a non-OEM product, accessory only! Specification: Type:Tensioner Pulley Material: Metal, Plastic Color: Black, Silver Tone Pulley Diameter: 6.5cm / 2.56" Size: 18.8x6.2cm / 7.40"x2.44" OE Number:4627039AA/4627038AAFitment: for Jeep Wrangler JK 3.6L V6 - Gas 2018 for Jeep Wrangler 3.6L V6 - Gas 2017 for Jeep Wrangler 3.6L V6 - Gas 2016 for Jeep Wrangler 3.6L V6 - Gas 2015 for Jeep Wrangler 3.6L V6 - Gas 2014 for Jeep Wrangler 3.6L V6 - Gas 2013 for Jeep Wrangler 3.6L V6 - Gas 2012 Package Includes:1 x Belt Tensioner Assembly