Low Back John Deere Lawn Mower Garden Tractor Replacement Seat Cushion. BRAND NEW. I haven’t been able to 100% verify application. The number 3470029 seems definitely not a good John Deere part number. I took measurements best I could. The cushion bottom is formed to fit a particular seat. I’m thinking it fits tractors in the 90’s. Maybe the 300 series. Please be sure of your application before ordering. Can send more pictures and measurements. Questions welcome.