This TSWGTG 20 041 12-S exhaust gasket replacement is designed for Kohler-style small engine repair and maintenance. It replaces 20 041 12-S, 20-041-12-S, 2004112S, KH-20-041-12-S, and AYP 532185909. The gasket is compatible with many Kohler Courage single cylinder SV470 through SV620 engines and fits select lawn mower models from Cub Cadet, Toro, Troy-Bilt, Craftsman, and AYP, including RZT, LT, LTX, SLT, GT, 1040, 1042, 1045, 1046, RZT42, and RZT50 series applications. The exhaust gasket helps seal the connection between the exhaust port and muffler or manifold area, helping reduce exhaust leaks and support stable engine performance. This 4 pack is practical for repair shops, seasonal maintenance, backup parts storage, and multiple mower servicing. Always compare your original part number, engine model, and mower model before purchase.