Atila 0 #1 Posted April 26, 2015 (edited) I have a wheel horse 312 8 ,32' " cut,3 blade ,side discharge .I D plate is not readable .I believe is M# is 21-12 k805... I need all the belts...Are they the same as the 42" cut ? help. Edited April 26, 2015 by Atila Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,451 #2 Posted April 26, 2015 Welcome to the forum. Download the D&A file for the 1985 312-8 model 21-12K805 The A is the attachment list. You will see there is no 32" or 36" side discharge deck listed. Just a 37" 2-blade side discharge plus the 42" and 48" decks. Need to identify the mower deck because that is where the mower belts are listed. Not listed with the tractor. Garry Share this post Link to post Share on other sites
Atila 0 #3 Posted April 27, 2015 Thank you Gary the ID tag on the deck is un-readable. To measure it do I go with the deck with it self or the cutting swath? Share this post Link to post Share on other sites
BESTDOGEVER 218 #4 Posted April 27, 2015 One way to get closer is measure 1 of the blades if it is close to 14 inches it's probably a 42 inch sd deck which would be the right deck for a 312 then it gets easier to find the right model. Share this post Link to post Share on other sites
Atila 0 #5 Posted April 27, 2015 Great its a 42 " Thank you ! A drive belt ?...5/8 x 81 or 82 ? I understand the OE was 81.5.not available. Does it matter.? Share this post Link to post Share on other sites
BESTDOGEVER 218 #6 Posted April 27, 2015 I think all the 8 speed used 82 inch x 5/8 belts they are available at tsc or local dealers Share this post Link to post Share on other sites
BESTDOGEVER 218 #7 Posted April 27, 2015 The deck should use a toro 1594 belt or a 1/2x107 replacement Share this post Link to post Share on other sites
Atila 0 #8 Posted April 27, 2015 I have found this info on deck belts..Pto to deck 1/2 x 103 and spindle belt 1/2 x 86 ? Share this post Link to post Share on other sites
BESTDOGEVER 218 #9 Posted April 28, 2015 Some of the 42 inch decks did use the 103 belt but most of the later 80's used the 107 . Do you have the old one's? If so take them with you to tsc they have measuring tool there. Welcome to the wheel horse forum I hope we can help you get this horse up and running Share this post Link to post Share on other sites
PbFlinger 64 #10 Posted August 22, 2019 I know this is an old post but a search will lead folks here & info has no expiration date. On my 1988 with a 48” side discharge deck I use a 103” or 105”. On mine a 103 is just a bit short; a new one just takes a small effort to get on but isn’t too tight when on the pulleys. A used 103 slips right on. 105 is perfect on mine. Have not tried a 107. Share this post Link to post Share on other sites
