Home / Carburetor Kit / Ethanol Needle & Seat Valve Kit for Briggs & Stratton 398188 Ethanol Needle & Seat Valve Kit for Briggs & Stratton 398188$6.49 Description Popular needle seat kit for 5 and 6HP vertical and 3.5 and 5 HP industrial plus engines. 10055 Made to FSP specs Out of stock SKU: 80-33-100 Category: Carburetor Kit Tag: H-5 Related products Diaphragm and Gasket Kit Compatible With: Zama GND-4: Zama C1S-K1D Carburetor Carburetor Repair Kit TECUMSEH 632760B, 80-31-003 Carburetor Overhaul Kit Compatible With: Tecumseh 631839 Carburetor Gasket & Diaphragm Kit Compatible With: Zama GND-17. Works With Up To 25% Ethanol In Fuel