Jeff1981 18 #1 Posted July 7, 2019 I have a 48" side discharge deck on my 1990 520-8. I believe the deck to be original to the tractor, making it a 1990 as well. The model and serial number plate is gone, and I'm trying to find manuals for it. Any ideas on how to figure out what model I have so I can order some parts and get the right ones? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,033 #2 Posted July 7, 2019 Here is the deck sold in 1990 but the parts list is shared with the 42" deck so hard to determine which parts fit what deck. If you are not sure ask. Click on the picture You could have an older or newer deck as they all fit the same. Here they are listed in order Note - 17mm is .669" 1985 model 05-48MS04 - Uses 6203 bearings with 17mm ID 1986-1988 model 05-48MS05 - Uses 6203 bearings with 17mm ID 1987-1988 model 05-48SC01 - Uses 6203 bearings with 17mm ID 1989 model 15-48SC01 - Uses 6203 bearings with 17mm ID 1990 model 15-48SC02 - Uses 6203 bearings with 17mm ID 1991-1992 model 15-48SC03 - Uses 6203 bearings with 17mm ID 1993-1997 model 78360 - Uses 6203 bearings with 17mm ID 1998-2007 and 2009-12 model 78361 - Uses 6203 bearings with 17mm ID - These all use blades with 3/4" center hole Garry 2 Share this post Link to post Share on other sites
Lee1977 6,647 #3 Posted July 7, 2019 If you have metric spindles the shaft at the top is 5/8". The bearing number for a metric spindle are 6203 they are 40 mm O.D. , 17 mm I. D. and 12 mm thick. 1 Share this post Link to post Share on other sites
Jeff1981 18 #4 Posted July 7, 2019 Thank you, this is just what I needed! 1 Share this post Link to post Share on other sites
