OEM Carburetor Kit / Zama RB-26Pack Size:1Zama RB-26J. Thomas RB-26, NHC 203-5531, Oregon 49-888, Oregon 49-888-0, Prime Line 7-08031Echo SRM-2501/2501S, SRM-2510, SRM-3000 and J/D 30S; John Deere 30S; Zama C1U-K20, A-C; C1U-K21, A-B; C1U-K23; C1U-SK12; C1U-SK13 and C1U-SK14 carburetors Not compatible with greater than 10% ethanol fuel