Model501452702, 501452701, 501546301, 501454101. Chain Adjuster Screw Tensioner For HUSQVARNA 501546301 501452701 501452702. Replace Part No.501452702, 501452701, 501546301 & 501454101. Fit Husqvarna 42 44 50 51 55 238 242 244 Chainsaw.
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