Which blade boss do i need to fit a honda gcv135 engine to a mountfield sp470 mower.

Wayne Lawrence, September 2010

The same boss that fits the Briggs will fit the Honda - provided you get the right version of the Honda engine. The same basic engine is fitted to pumps, generators, pressure washers, etc, as well as mowers. As long as you get the version with the right length/type/diameter of crank shaft you will be fine.

Mountfield fit/have fitted Honda engines to some of their more expensive mowers.

phil_saunders(a)bigfoot.com

Phil Saunders, September 2010

You can't get one off the shelf as this machine is only designed for the Briggs engine or Mountfield Chinese sourced own engine. If those engine hubs are not compatible with the Honda engine you are intending to fit, then you will have to get one fabricated although i wouldn't recommend it as the blade hub/boos is a safety related item and it would be very dangerous to simply fit any hub that will do.

pleasant, September 2010