Transmissions and gearboxes are the workhorses of heavy-duty equipment, so to protect your workhorse, you need filtration that works harder than they do. Transmissions transfer power from the engine to the final drive and powertrain systems. For equipment to operate efficiently and reliably, it’s critical that these systems are functioning correctly. Donaldson filtration systems help protect transmission gears and controls from contamination that can be generated internally (such as clutch debris and wear metals) or introduced from the external environment.