Amazon.com: K&N Premium Oil Filter: Designed to Protect your Engine: Compatible Select 1977-2012 CHEVROLET/GMC/BUICK/CADILLAC Vehicle Models (See Product Description for Full List of Compatible Vehicles), PS-2006 : Automotive
Acdelco Cross Reference Chart, There are 314 replacement spark plugs for NGK BPR6ES.
Cross Reference for Oil Filter Elements - Parker
Filter cross reference (ONLINE) between the main brands.
Motorcraft Mercon Lv Cross Reference | Natural Resource Department