Toothed ring sprocket for JONSERED chainsaw A : 16 mm B : 14 mm C : 63,5 mm D : 16 mm Pitch: 325 Teeth: 8 Compatible with chainsaw models: 450 - 455 - 510 - 520 - 525 - 535 - 540 - 2044 - 2051 - 2052 - 2054 - 2055 Code Article 370074