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Read articles →An owner walks through replacing the battery on his own John Deere 4320, including the part buyers won't find elsewhere: the battery is wedged under a hood-latch plate that must be unbolted before it will budge, a step that stumped him despite having owned this tractor since the early 2010s. He also covers OEM battery cost ($182 with core credit), CCA specs, and a dual-pedal safety switch quirk and console error messages he's dealt with over the years.
An owner-operator filming maintenance on his own long-owned tractor, explicitly aimed at future viewers searching for this specific repair rather than his regular audience.
A plate bolted down near the hood latch holds it in place. Unbolt the two bolts on that plate and the battery comes right out.
The replacement battery was 800 CCA, while the original battery that lasted about 10 years was a 770 CCA.
The OEM John Deere battery cost $182 after a $18 credit for turning in the old battery core.
A safety switch behind a console box stops the tractor if both pedals are pushed at once, preventing it from destroying itself.
