575260403 Chain Tensioner Kit Husqvarna 537286501. Fits 455, 460, 545 & 555 - OEM

STENS: 635-318

For shorter worm screw use 537397001 and nut 537286601 (the nut in kit 575260403 will not work on shorter screw 537397001 screw because it is reverse thread)

SR-4