Core Plug 1" 31/32 - 50mm Stainless Steel (End of Camshaft) Perkins A4.236 A4.248 A4.236T A4.248T 1004.4 1006.6Info:Core Plug 1" 31/32 - 50mm End of CamshaftPerkins A4.236 A4.248 A4.236T A4.248T 1004.4 1006.6