Walbro WT-813 / WT-990 / WT-257 / WA-167 / WT-771 Rebuild Kit K10-WAT $12.99 Quantity discounts available QuantityPrice Quantity: -+ SKU: AV450 ABOUT THIS PRODUCT:Walbro WT-813 / WT-990 / WT-257 / WA-167 / WT-771 Rebuild Kit K10-WATAboutAboutWalbro WT-813 / WT-990 / WT-257 / WA-167 / WT-771 and similar carburetors. Walbro part # K10-WAT.