UFP caliper, and you should be able to match at a good parts house if your boat is 06 or newer. Take it with you Chris, they should be available. Chris, see if this helps, even gives year and make of auto to go to parts store…….http://www.ufpnet.com/Portals/0/PDFs/DB35Maint.PDF Im not positive, but looks correct,,,,,,,just tryinn to assist.Last edited by dbasketman on July 3rd, 2012, 8:40 pm, edited 2 times in total.