What climate blower fan do I need?
Thread Starter
6th Gear
Joined: Aug 2025
Posts: 6
Likes: 0
What climate blower fan do I need?
I have ordered two and neither blower fan fits, the motor fits but the fan itself is wrong. I have a 79 L82 with AC, a mouse ate the old fan but the first one I ordered it is too long, the second one is is too small in diameter and length. The one that came out of the car is 2 3/4" thick, and a bit over 5 1/4" in diameter on the motor side. Any help on what actual part number I need would be great. The part number on the fan itself is 303693, the motor has 5044 83006 D29 9 on it.
Last edited by Bugler; Aug 28, 2025 at 10:04 AM.
Thread Starter
6th Gear
Joined: Aug 2025
Posts: 6
Likes: 0
Okay, after many searches and cross referencing I found no parts store that has the right part for the car listed. I found the correct GM part is 15-80666(fan and blower). I found a a cross reference for a carquest Part No. 35345 and it matches up with the actual fan/motor I pulled out. Just in case anyone else runs into this problem. I have no idea why every single car parts store lists the wrong fans and motors.
Safety Car
Joined: Dec 2012
Posts: 3,820
Likes: 1,728
From: Summerville SC
Before you go to all this trouble, most people swap out the oem squirrel cage with one from a C4. You have to make an adapter to mount it to the heater box, but it's not difficult. Do a search on the forum and there are lots of threads. The C4 will blow better than the C3 cage does. 
Thread Starter
6th Gear
Joined: Aug 2025
Posts: 6
Likes: 0
Before you go to all this trouble, most people swap out the oem squirrel cage with one from a C4. You have to make an adapter to mount it to the heater box, but it's not difficult. Do a search on the forum and there are lots of threads. The C4 will blow better than the C3 cage does.
