6X Fuel Injector AR50781 20494 AR39811 AR50783 AR46846 SE501163 Compatible with John Deere 3010 3020 4000 4010 4020 4230 4520 Item Description About this item ?Part Number?Replace for AR50781 20494 AR39811 AR50783 AR46846 SE501163 ?Application?Compatible with John Deere Tractor(s): 3020, 4000 (s/n 335845 - earlier), 4020 (s/n 335845 - earlier), 4040, 4230 (s/n 335845 - later) ?Application?Compatible with John Deere Combine(s): 6600, 7700 ?Application?Compatible with John Deere Construction Industrial(s): 500 (s/n 280000 - earlier), 510, 600 ?Customer Service? If you have any inquiries about model or installation or other aspects, please feel free to contact us before ordering. ? See more product details Application: Compatible with John Deere Tractor(s): 3020, 4000 (s/n 335845 - earlier), 4020 (s/n 335845 - earlier), 4040, 4230 (s/n 335845 - later) Compatible with John Deere Combine(s): 6600, 7700 Compatible with John Deere Construction Industrial(s): 500 (s/n 280000 - earlier), 510, 600 Payment We accept payment only through the Payment system. Shipping Most products are usually shipped within 1-2 business days from the date of being ordered. We do ship worldwide via the International Shipping Program. For an international shipment quote, please add add item to cart and attempt checkout. will supply the international shipping price. Return We do not accept returns except in certain, unlikely circumstances.