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The 4520 PRO upgrade kit includes five key additions: a foot pedal, dual auxiliary hydraulics, 3rd-function hydraulics, relief valve, and front 12-volt. Together, these five accessories allow the 4520 to run all of our most popular attachments. One of the most important details is that the PRO is a factory-installed option meaning it was built here at Ventrac with quality control and consistency. And when you see the PRO decal on a tractor at your local dealer, you know this machine is ready to work, and you can do anything with it.
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