This Polastorm PolaFlex propeller hub kit for Mercury is model F11 with 13 splines and is designed for compatible outboards with a 3 1/4" gearcase. The interchangeable hub system is used for mounting and completing compatible Polastorm Polaris stainless steel propellers.
The hub kit is mounted between the propeller and the propeller shaft. The construction combines a metal hub with a shock-absorbing rubber bushing, which acts as an elastic element between the drivetrain and the propeller.
The kit contains a shock-absorbing hub insert, thrust washer, front washer, spacer, and nut. The necessary hub and mounting parts are thus supplied assembled for the documented application.
F11 has 13 splines and is designed for a gearcase with a diameter of 3 1/4" (82.6 mm). The nominal engine range is 25–70 hp, while the detailed compatibility list also includes the Mercury 75 hp from 1996–1998.
Compatible engine models
Mercury 25 hp Bigfoot 4-stroke, 1999–2005
Mercury 30 hp Bigfoot 4-stroke, from 2010
Mercury 30 hp 2- and 4-stroke, 1994–2005
Mercury 30 hp Sea Pro/Marathon, from 1994
Mercury 35 hp, 1984–1989
Mercury 402 and 500, 1974–1984
Mercury 40 hp 2- and 4-stroke, non-Bigfoot, from 1977
Mercury 40 hp Sea Pro/Marathon, from 1977
Mercury 45 hp, 1986–1989
Mariner 48 hp, all years
Mercury 50 hp 2- and 4-stroke, non-Bigfoot, from 1977
Mercury 55 hp and Sea Pro/Marathon, from 1995
Mercury 60 hp 4-stroke, non-Bigfoot or Sea Pro/Marathon, from 1978
Mercury 60 hp 2-stroke, from 1978
Mercury 70 hp model 700, 1983
Force 40/50 hp, 1995–1998
Mercury 70 hp, 1991–1995
Mercury 75 hp, 1996–1998
Mercury/Quicksilver 835257Q12 is a documented third-party cross-reference. The number should be used as a reference and not as documentation for completely identical compatibility.
Always check engine and gearcase model, year, gearcase diameter, spline count, and original part number before purchase.
Key featuresInterchangeable PolaFlex hub system
Model F11 with 13 splines
For 3 1/4" (82.6 mm) gearcase
Shock-absorbing rubber bushing
For documented Mercury, Mariner, and Force engine variants
Complete with hub insert, thrust washer, front washer, spacer, and nut
Designed for compatible Polastorm Polaris stainless steel propellers
