Dial in cabin comfort with the Four Seasons HVAC Blend Door Actuator (P/N 73581) — the left-side actuator that positions the temperature blend door inside the HVAC case, and the part to reach for when you're shopping for a Cadillac Ats blend door actuator. It drops in as a direct-fit replacement for the 2016-2019 Cadillac ATS and 2016-2019 Cadillac CTS; see the Buyer's Guide tab for engine-level fitment.
This small electric motor drives the blend door that controls how much air passes through the heater core, setting the temperature you dial in on the climate controls. Backed by Four Seasons' decades of mobile A/C experience, it's built to OE-level fit and function.
- Complete linkage: includes the lever arm, gear, cam gear hardware and linkage as applicable.
- Quality internals: internal motor, drive gears, electronics and connections.
- Function-tested: checked for function, durability and longevity.
If a failed actuator is the cause, replacing it can restore proper blend-door movement. Signs one may need replacing include a clicking or knocking noise behind the dash, temperature that won't change, or air stuck on hot or cold — diagnose the cause before you replace.
Interchange: 1574542 · BDAH1080 · 23291751 · DA1535
This part cross-references / interchanges with the following part numbers:
1574542, 73581, BDAH1080, 23291751, DA1535
