This is a brand new aftermarket starter for tractors. Starter assembly, new, Iskra. 12 volt, diesel, 10 teeth. Tractors: 3020 (s/n 123000 & up), 4000, 4020 (s/n 201000 & up), 4000, 4020, (s/n 201000& up, 4030, 4040, 4050, 4230, 4240, 4250, 4320, 4430, 4440, 4450, 4520, 4620, 4630, 4640, 4650, 4840, 4850, 6030, 7020, 8430, 8440, 8450, 8560. Combines: 6600, 6620, 7700, 7720, 9500, 9600. Forage Harvesters: 5200, 5440, 5720, 5730, 5820, 5830. Replaces AR41627, AR77254, RE13722, TY6713, Denso# 02800-3290, 02800-3291, 02800-32922, Iskra #IS0663. ONE YEAR WARRANTY Griggs Lawn & Tractor warranties new electrical items to be free from defects in material and workmanship for a period of one year from date of purchase. The manufacture reserves the right to inspect any item prior to granting warranty. We pledge our support in obtaining settlement of reasonable and justifiable claims. Griggs Lawn & Tractor will not assume any responsibility for loss of time, labor, or crop for any warranted parts. After 30 days of the initial purchase, warranty does not cover