Washer that fits between the crank seal and the oil pump worm drive / gear. For the Echo CS2511 chainsaw.
Genuine Echo product.
Part number V308-000030
Replacement worm wheel drive to fit the 1/4" picco and the 3/8" picco drives of Stihl chainsaws. FITS MODELS MS 150T, MS 151 TC-E, MS 194 T, MS 201 TC-M OEM 11466407102 ...