PLUG 5/16 UNC X 18 X 3/8 – SUMP DRAIN PLUG* By View cart “SPACER – CARB SPACER – ALLOY – NORTON MATCHLESS ATLAS G15 N15 P11” has been added to your cart. $5.50 PLUG* 5/16 UNC X 18 X 3/8 SUMP DRAIN Out of stock SKU: 21-1945 Category: Uncategorized Related products SET–SHIMS – CRANKSHAFT – BSA C15 B44 $17.28 Add to cart SET–VALVE SPRINGS – NORTON TWIN – HIGH PRFORMANCE MULTIRATE* $52.10 Read more EXHAUST PIPE w/WELDED-ON BRACKET – MATCHLESS G80 G18 $175.00 Add to cart CLIP – FINNED CLIP 1-5/8* – CAUTION: DO NOT OVER-TIGHTEN! $45.75 Add to cart