Tractor - Tier 4 A CVT

T8420 parts and diagrams. The T8420 is part of New Holland's T8.XXX TRACTORS range in the AGRICULTURAL line (AG equipment). Clinton Tractor carries 3673 replacement parts for this model, organized across 18 sections including Accessories, Brakes & Controls, Cab Climate Control, Electrical Systems, Engine, Four Wheel Drive System, Frames And Ballasting, Front Axle System. Browse the exploded parts diagrams to find the exact T8420 part you need by callout number, with OEM cross-reference and fitment.