[FITMENT MODELS]Fit for Firman Harbor Freight 420cc 389cc 440cc and fit for GX340 GX390 GX340 GX340U1 GX340U2 GX340R1 GX340K1 Carburetor water pump WT40XK1 WT40XK2 WT40XK3 part# 16100-Z5T-901, 16100-ZE3-V01 [PRODUCT SIZE]Throttle hole: 1.06in(27mm), Throat hole: 0.91in(23mm), Center mounting hole: 2.05in(52mm) [APPLICABLE MACHINES]This carburetor can be used in engine, pressure washer, snow blower, go kart and other machines.Fit for Toro 22308 Tx 413, 22330 Tx 413 Compact Utility Loader [NOTE]1.Pay attention to check whether the size of the product in the picture is consistent with the size of your product, so as to play the role of the product 2.When replacing the carburetor, it is best to use the provided matching gasket Color: As Shown Material: metal Package Contents: 4 x Carburetor kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.