Things get a little heated! Installing a new radiator in John Deere 3520

This is a real repair walkthrough from an owner whose 3520 developed a hole near the radiator neck, causing coolant loss and cap leaks. He shows the damage, a failed JB Weld patch, then the full swap: draining coolant, removing four bolts and hoses, comparing old versus new radiator, noting a non-factory overflow tank, and refilling with 50/50 coolant. Useful for owners facing overheating or radiator replacement on this model.

Posted by an owner-operator documenting a hands-on DIY fix on their own 3520, not a dealer or professional shop.