Premium Quality Replacement PartCarburetor for Kohler 128-531-17-S 128-531-18-S CV490-CV493 17/18hp 26mmFits the Following Lawn Mower/Tractor Engines/Models:Kohler 12-853-117-S 12-853-118-S CV490-CV493 17hp/18hp EnginesKohler Engines:CV490-27503 TORO 17 HP CV490-27505 ELECTROLUXCV490-27510 MTD-CUB CADET 17 HPCV490-27514 SHIVVERS 17 HPCV490-27515 HUSQVARNA 17 HPCV491-27501 ELECTROLUXCV491-27509 JOHN DEERE 17 HPCV492-27525 TORO 18 HPCV492-27531 SIMPLICITY 18 HPCV492-27534 SIMPLICITY 18 HPCV492-27536 MTD 18 HPCV492-27539 SIMPLICITY 18 HPCV493-27523 FERRIS 18 HPCV493-27533 SHIVERS 18 HPCV493-27538 BIEFFEBI 18 HPToro Riding Mowers:74601 17K-44ZX TimeCutter ZX Riding74601 Z17-44 TimeCutter Z Riding Mower74603 TimeCutter ZX440 Riding Mower74701 17-52ZX TimeCutter ZX Riding Mower74701 Z17-52 TimeCutter Z Riding Mower74702 18-52ZX TimeCutter ZX Riding MowerReplaces OEM:Kohler:12-853-117-S12-853-118-SCV490 CV491 CV492 CV493 EnginesToro: 74601 74603 74701 74702 TimeCutter Riding MowerJohn Deere: