Spring cartridge - 5987503-01Spare part for chainsaw/brush cutter from the Husqvarna spare parts catalogSuitable for example: Husqvarna 545 Husqvarna 555 Husqvarna 550XP /G/Three brakes Husqvarna 560XP/G Husqvarna 572XP/G Husqvarna 576XP Husqvarna 565 Husqvarna 562 XPGReplacing:5987503-01, 598 75 03-015051579-02, 505 15 79-02505157901, 505 15 79-01