Premium Quality Replacement Part. Spindle Assembly with Pulley. Compatible with Stens Models. Lz18kc523 – 52″ 60″ Lazer Z Zero-Turn Mower, 18hp Koh. (Sn: 190000 – 219999) (1999). Lz22kc523 – 52″ 60″ Lazer Z Zero-Turn Mower, 22hp Koh. Lz22kc604 – 60 Lazer Z Zero-Turn Mower, 22hp Koh. Lz22lka523 – 52″ 60″ Lazer Z Zero-Turn Mower, 22hp Kaw. (Sn: 220000 – 259999) (2000). Lz22lka604 – 60 Lazer Z Zero-Turn Mower, 22hp Kaw. Lz23kc523 – 52″ 60″ Lazer Z Zero-Turn Mower, 23hp Koh. Lz23kc604 – 60 Lazer Z Zero-Turn Mower, 23hp Koh. Lz25kc523 – 52″ 60″ Lazer Z Zero-Turn Mower, 25hp Koh. Lz25kc604 – 60 Lazer Z Zero-Turn Mower, 25hp Koh. Lz25kc724 – 60″ 72″ Lazer Z Zero-Turn Mower, 25hp Koh. Lz26kc604 – 60 Lazer Z Zero-Turn Mower, 26hp Koh. Lz26kc724 – 72 Lazer Z Zero-Turn Mower, 26hp Koh. Length: 193.7 mm – 7.62 in. Pulley Width: 12 mm – 0.47 in. Pulley Outer Diameter: 167 mm – 6.5 in.