With our bungs just drill a 9/16" hole with a step drill and weld the bung on. Save labor and get a better fit
DIAMENTIONS OF THE BUNG ARE = .500 TALL WITH THE STEP, (.300 w/out step) X .750 WIDE M12mm X 1.25mm THREAD, STAINLESS STEEL PLUG = .500 TALL, M12mm X 1.25mm, 5/16" HEX, STAINLESS STEEL WASHER = 12MM X 16MM X 1.5MM. COPPER
Fitment For M12.5mm x 1.25mm thread - steel pans on American, Japanese, European, cars, trucks, motorcycles