Drive Belt Tensioner With Spare Pulley – Fits Chevy GMC 4.3L/5.0L/5.7L/7.4L (96-10)

Keep your Chevy or GMC truck’s serpentine belt running smooth with this ISUMO tensioner kit.

It fits a ton of models from 1996 to 2010 with 4.3L, 5.0L, 5.7L, or 7.4L engines.

You get the complete tensioner assembly plus a spare pulley, so you’ve got a backup if you ever need it.

It’s a direct front-mounted replacement, matching OEM numbers like 89017309 and Dorman 419100.

Built to last and backed by a 90-day warranty, this is a solid fix for that annoying belt squeak.