A/C part needed 89018383?

2001 BUICK PARK AVENUE
187,000 MILES • 3.8L • AUTOMATIC • SUPERCHARGED
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BIGTIME73
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  • 1 POST
89018383. I have looked high and low for this part. Any ideas from anyone? It switches their from defrost to vent. Appreciate any assistance.
Oct 13, 2026 at 4:48 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,479 POSTS
I would try ebay, this part has been disconnected you will need to find it used. Yes—89018383 is the complete mode-door actuator, bracket, and cam assembly, which controls where the air comes out. It replaced 52473466, and the original assembly is currently listed as unavailable. There’s a promising lead: an owner of a 2001 Park Avenue reported replacing just the actuator with NAPA ADA111, retaining the original bracket assembly, and said it fit and worked. That is an owner-reported solution, not a confirmed catalog interchange.
Oct 13, 2026 at 7:34 AM
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