Premium Quality Replacement PartCarburetor for Kohler SV540 20-853-33-S 2085333S 18HP Engines 26mm BoreFor Kohler Models:Kohler SV540 20-853-33-S 2085333S 18HP EnginesKohler 18HP Engines:SV540-0002 TractorSV540-0003 TractorSV540-0004SV540-0006SV540-0007SV540-0008SV540-0009SV540-0010SV540-0011SV540-0012SV540-0013SV540-0014SV540-0015 BasicSV540-0016SV540-0017SV540-0018SV540-0019SV540-0020SV540-0021SV540-0022SV540-0023SV540-0024SV540-0026SV540-0027SV540-0028SV540-0029SV540-0031SV540-0210SV540-0222 Order Includes:1x Carburetor1x Fuel Filter (5/16″ / 5mm)2x GasketsReplaces OEM:20-853-33-S20-853-14-S20-853-16-SCarburetor Specs:Bore: 26mmChoke Style: Butterfly ValveThrottle Style: Butterfly ValveCarb Attachment Style: Bolt-on/FlangeReplaces Brand: KohlerJet Size: 1.21**