Blade for Lawn Mower Lawn tractor Models RZ4219 F RZ4222 TFBF YT42 XLS YTH22 V42LS YTH2242 TDF YTH2242 TDRF YTH2242 TF YTH23 V42LS YTH24 V42LS Features: Length (mm): 372 Centre hole (mm): 5 points Part No.: 122-138 Part No.: 539 11 20-78 112078 Husqvarna Partner