Husqvarna 5320570-79 Thrust Washer Genuine Original Equipment Manufacturer (OEM) Part This part is compatible with models including; 917255575,917289105,917289104,917289103,917270723,917270720,917270962,917373843,917270961,917373842,917270722,917373841,917270721,917270963,917271810,917288260,917373840,917255581,917256670,917255580,917270960,917256430,917255582,917378290,917259920,917270712,96192003700,917270951,917270950,917270711,917288270,917270710,917288271,917255570,PP927ESB,917259930,917255574,917256421,917255573,917256420,917256662,917255572,917256661,917255571,917256660 This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including; 57079 Genuine Original Equipment Manufacturer (OEM) part. Compatible Brands: Husqvarna Perfect for replacements or repairs!