This 4" tall billet spin-on filter has 13/16"-16 threads and a standard size o-ring. Like all CM filters it features a billet aluminum body built for strength and durability for a lifetime of use. Heat sink ribs add to filter's functionality and aggressive aesthetic. The filters bottom cap is easily removed with four bolts for filter element inspection and replacement. A CM 2-5/8" tall synthetic fiber filter element which flows 15 GPM of hot engine oil with no loss of pressure and filters down to 8 microns comes preinstalled.