Detroit Diesel Engines Engine Plug size Link 352, 353, 453, 652, 853, 50 & 60 Series 3/4″-14-NPT-T15 Show plug 6V92 , 6V71, 8v92, 8v71, 471T53, 71, 92, Other Small Engines 1/2″-14-NPT-T12 Show plug DD13, DD15, DD16, 2000, 4000 Series, V8, V12 M27X2.0-T12 Show plug DD5, DD8 M22X1.5-T10 Show plug 40 Series M25X1.5-T15 Show plug 30 Series M14X1.25-T10 Show plug
