If you need the part# 9847458 seat safety switch I want to share something I learned. This is the under seat plunger switch used in the Lx665 and others. My New Holland dealer gave me a price of $30.70 per switch. You may need one or two depending on the unit. When I arrived they learned the computer was wrong and they did not have them in stock. they did have a part# 183870 for a Grass Hopper lawn mower. These switches are carbon copies of each other, except the mower switch is gray. I can live with the color change since the price was $10.14! I checked and found them on line for similar prices if you don't have a local dealer. Hope this saves someone some money.