Kit Includes the Following Items (2) Spindle Assemblies Compatible with Parts: For: Husqvarna: 174356, 532174356, 532174358, 532192656, 539107515, and 587125201For: AYP: 174356, 174358, 532174356, and 532174358For: Jonsered 532174358 (2) Blades (23" x 5 Point Star) Compatible with Parts:For: Husqvarna 532 40 53-80For: AYP / Roper / Sears: 405380, 532405380 (1) Belt (5/8" X 123") Compatible with Parts:For: Husqvarna: 539117245For: AYP: 539117245For: Dixon: 539117245 (2) Spindle Pulley (OD: 5 1/2")(ID: 12 Pt. Hex) Compatible with Parts:For: Husqvarna 539113962 and 588586601 (1) Idler Pulley (Height: 1-59/64")(OD: 5-7/8")(ID: 11/16") Compatible with Parts:For:  Husqvarna: 539-132728, 539112196, 539131148, and 589766101 (1) Idler Pulley (Width: 1-11/16")(Center Hub: 0.4570")(OD: 5-3/8") Compatible with Parts:For: Husqvarna: 196104, 197380, 532196104 and 532197380 Compatible with Models:LSZ 4622 - 965880801 (2008-11)RZ 4619 - 965921501 (2009-01)RZ 4619 CA - 966503401 (2010-01)RZ 4620 - 965881201 (2009-01)RZ 4621 BF - 966582301 (2010-03)RZ 4621 - 967009803 (2013-08)RZ 4621 - 967009805 (2013-11)RZ 4622T BF - 967176201 (2012-08)RZ 4623 - 967009801 (2012-01)RZ 4623 - 967009801 (2013-05)RZ 4623 - 967009804 (2013-12)RZ 46i - 967277604 (2014-03)RZ 4622T BF - 967176201 (2012-08)RZ 4623 - 966764501 (2011-03)RZ 4623 - 967009801 (2012-01)RZ 4623 - 967009802 (2011-11)Z 246 - 967323902 (2015-01)Z 246 - 967323903 (2015-01)Z 246 - 967324001 (2015-01)Z 246 - 967324002 (2015-01)Z 246i - 967323901 (2015-01)