krazy_horse 59 #1 Posted December 8, 2011 I have an 856 with a 36 in. rear discharge mower. Need to know the size belt from engine pully to mower, I hope to find one at NAPA. Thanks in advance. Jim Share this post Link to post Share on other sites
TT-(Moderator) 1,131 #2 Posted December 8, 2011 The belt is 28" X 1/2" The parts list for the mower: http://www.partstree.com/parts/?lc=toro_consumer&mn=RM-366%2C+36%22+Rear+Discharge+Mower%2C+1966&dn=A_5252-52520033-00016 One of the sites you can use to look up the belt size by OEM part number: http://outdoorpowerinfo.com/belts/wheel_horse_belts.asp Share this post Link to post Share on other sites