Converting straight splined Volvo Duoprops to Helical (spiral) Splines on DPS drives

While the Volvo Penta Duoprop DPS or DPS-A drive has straight splines, with the release of the DPS-B drive a few years ago, Volvo Penta changed to a helical or spiral spline system. With this change, many people have been switching to the DPS-B drive and are left with sets of straight splined F series propellers that will not fit on their new helical splined shafts. This leaves the boat owner with a couple of options as to what to do with their old propellers. One option is to sell the propellers, the other is to have them rehubbed with helical splined hubs. If the props you are replacing from the DPS drive (straight splined) are the same pitch as the ones you are putting on the DPS-B (helical splined), having the props rehubbed will save you $800-$1000 per set over buying new props. This is a service we perform daily.

If you have any questions about the process or would like a quote, please call us at 800-634-8318 or email us.