How to Replace a TC or DX Hydraulic Oil Cooler

Stands out as a practical field repair video, not a buying guide. Mike walks through replacing the hydraulic oil cooler on New Holland TC and Case DX 35-45 hp hydrostatic tractors (roughly 2003-2011), covering how to identify the leak, remove the cooler with just a 10mm socket and adjustable wrench, test it by blowing air through it, and bleed the hydraulic system using a ~$40 vacuum tool from O'Reilly. Best for owners already facing this specific failure.

Tractor Mike is a longtime tractor-industry insider with decades of hands-on experience in the equipment business. He built his channel to help first-time and rural buyers make confident decisions, and his guidance comes from that deep, long-term background rather than a sales pitch.