BLADE for lawn tractor COMPATIBLE PR17, PR17 AWD, R418Ts, R418Ts AWD, R422Ts AWD, Proflex 21 AWD, P524, Rider 15V2 AWD, Rider Pro 15, Rider Pro 18, Rider18 AWD CHARACTERISTICS : Length: 420 mm Central hole diameter: 12. 4 mm Side hole diameter: 8.2 mm Side hole spacing: 40 mm CODE: 122-089 ORIGINAL CODE REFERENCE: 504 18 78-10, 504 18 78-01, 544 10 27-01 HUSQ VARNA