Compatible with Craftsman models: LT1000, LT2000, LT3000, T2200, LTS2000, DLS3500, LTR2000, YT3000, YTS3000, DYT4000, GS3500. Ideal for maintaining optimal engine performance in riding mowers. Designed for 14.5-21HP engines with compatible air and oil filters: 793569, 793685, and 696854.