ITEM NAME:Recoil Rewind Pull Starter Assembly 503151803 fit for Husqvarna 50 55 Chainsaw Recoil Rewind Pull Cord Starter Assemble Fit For Husqvarna 55 51 50 Chainsaw SPECIFICATIONS.MPN: 503151801, 503151802, 503151803, 503608803,503608802. Recoil Rewind Pull Cord Starter Assemble Fit For Husqvarna 55 51 50 Chainsaw. Compatible with: Fit for Husqvarna 50 51 55 Chainsaws. Item included: 1 x Pull Starter.