This dipstick fits all ratios of the popular 1017 and 1018 series marine transmission.  Sometimes these are labeled 10-17 or 10-18.  If your model number starts with any of these prefixes then this fits your model.

If you have a 71C or 72C model of the Borg Warner Velvet Drive Marine Transmission that has the non threaded square head dipstick the this also fits your TRANSMISSION.

Replaces Velvet Drive #: 1017-559-001, 1017559001, 10-17-559-001

Fast shipping.  I ship same day if ordered by 3:00 pm Eastern time and I upload the tracking number instantly