Belt guide pulley V-groove bearing lawnmower mower 280-339 FOR MODELS: 42561x8A, 42561x8B, 26", 30", 34", 36", 42", 48", PROLINE 120 Lawn tractor mower pulley with V-groove bearing DIMENSIONS : Outer diameter: 76.2 mm Inner hole diameter: 12.7 mm Height: 19.05 mm CODE: 280-339 ORIGINAL CODE REFERENCE: 20613, 91178, 420613, 668827, 2-4463, 7-0823, 62-4530 MURRAY , SIMPLICITY , TORO vr