Hi everyone, I'm new and stumbled onto the site. My issue is the model number has rubbed off and I am not 100% sure what the number is. I have a LTX 1000, Craftsman 42inch rider. It has the 20hp intek twin, OHV, Briggs and Stratton. I do have some of the number, but unsure of the last 4. What I have is/ 917.27????. I spoke with someone at Sears and he thought it was 917.272460. So I ordered parts with him. 2 push rods, intake and exhaust valves, head gasket. After getting off the phone with them , I tried to look up the number he googled, and a 21.5 hp briggs popped up with that number. SO, is there anybody out there that has this rider or knows what number it may be. The number he found is 917.272460. Thanks guys and or gals, Happy Mowing.