Got oil dribbling from the weep hole in your early 4 or 5 speed transmission? This stainless steel hose barb plug replaces the early version shift drum detent plug with the vent hole (12235300) on early 4 and 5 speed transmissions as found on V700, Ambassador, Eldorado, V750 Special, and 850GT and V7 Sport. Hose barb diameter is 8mm. Accepts 8mm or 5/8" oil resistant hose. Route the hose up into the battery compartment, terminating underneath the seat. Seals with a 10mm ID sealing washer 10528900.