Serpentine Belt and Belt Tensioner Replacement
 

Good Afternoon Jeep forum, I am looking for a 2012 Jeep JK Serpentine Tensioner replacement part. I've been looking online and have not had much luck coming up with a replacement part. If anyone can help please write back. Thanks. -Tommy 2012 JKU

Are you needing just the pulley or the entire assembly? The pulley that is on the tensioner is the same as the idler pulley, just bolted to the tensioner arm.

Whole assembly, plus belt due to cracked thermostat housing.

Give these folks a try - https://www.jk-forum.com/forums/spon...t-here-314660/

the serpentine belt and related parts is covered under the 5 year 100000 mile warranty.

pulleys
 

Part number for the two top pulleys which are the idler pulleys are 04627039AA. Try ebay or amazon, I believe the tensioner pulley is the same size as the two top idler pulleys.

Rockauto is the place to buy stuff like that, if you are gonna order it online. google for 5% off coupons, they always have them