John Deere 6620 Tractor Tail Light. This listing is for the pictured Genuine John Deere 6620 Tractor Tail Light. Pa rt number – AL210180. Also collect from our showroom offering a HUGE range of John Deere mowers, Stihl garden machinery, Le chameau footwear, Teng tools and children’s farm toys. Farol ltd John Deere Dealer, Rycote …