2020-2025 Duramax L5P Secondary Upgraded AC Delco Belt Tensioner W/ Metal Pulley

You are looking at an OEM AC Delco replacement for the 2020-2025 L5P Duramax that drives the clutch fan from the crankshaft making it the secondary belt and tensioner! This updated unit features a metal pulley vs plastic.

We can include a brand new AC Delco belt as well in the options to make it a complete kit!

Please take a look at our metal tensioner pulley for the primary drive system - Found HERE