Prime Line 7-08081 Carburetor Kit without Needle and Seat Replacement for Model Zama GND-13, GND-18 Does Not Include Needle & Seat Fits McCulloch and Toro Fits C1Q and C1U Carburetors-Echo SRM 2300-Oleomac-Efco 640, 750 8510, MTL 40, 640-Power Tools 6131, 6231, 6331 Fits Weedeater-Feather Lite-Ryobi 280R, 310R, 310BVR, 410R, 700R, 704R, 705R, 710R, 725R, 740R, 750R, 760R, 765R, 780RB, 780RE, 790R