Product Description: Fitment: Fits for the 8.1 liter gas motor and the 6.6 liter Duramax diesel ATLAS COPCO 57899320 BALDWIN PF7748 DETROIT DIESEL 2353381 DETROIT DIESEL 23529168 DETROIT DIESEL 23533816 DONALDSON P564032 DAVCO 102187 HINO FS1962490 HITACHI E12981308 NAVISTAR 2588149C1 Features: 1) This is a disk type magnet that mounts on top of the external spin on filter to catch metallic debris. Its very common for this magnet to get overlooked when servicing as it tends to stick to the top of the filter, only to get thrown away with the old filter .
eBay