Description: 13 Blade Alternator Cooling Fan
Year: 1965-66
Model: Mustang, Shelby, Ford
Part #: C5AZ-10A310-B
Date Range: Late May 1965 thru very late production 1966
Quantity: 1
Finish: Semi-gloss black paint (dipped)
Dimensions: 11/16" I.D. X 5 1/2" O.D.
Manufacture: Dead Nuts On

Accuracy Rating: 10
Best Repro Available: YES

Jack's Comments:

This our newest reproduction of the original production convex center fan used on all Fords from late May 1965 thru late production 1966. The U inside the circle is a vendor stamp that all original production fans had. Ford originally dipped them in semi-gloss black so we also dipped them to get the same look, drips and all. This fan uses a 5/32" spacer (not included).

Pulleys used with this fan: 
C5AF-10A352-C machined type single sheave (painted black)
C5AF-10A352-J2 machined type double sheave (painted black)

Concours Notes:

1) If your car was built before late May 1965 you still need a black painted 13 blade fan but it's not convex like this one and it uses a different spacer.
2) Hipo 289: The C5AF-10A352-C Hipo 289 pulley was used with this fan.
3) 1965-66 Production survivor alternator fan and pulley finishes we documented...

Documented Original Mustangs from Bob Perkins Collection:
Black Fan, Black pulley March 9, 1966 289 4V Dearborn built 6,000 miles
Black Fan, Yellow zinc pulley April 1, 1966 Hipo 289 Dearborn built low mile survivor
Black Fan, Yellow zinc pulley June 6, 1966 289 2V Dearborn built 54 miles

Other documented original fans and pulleys:
Blue Fan, Black pulley November 12,1965 6-cylinder Dearborn 33,000 mile
Black Fan, Black pulley Feb 19, 1966 289 Hipo San Jose very low mile survivor

Fans Painted Ford Blue:
Late production 65’s and early 66's could have Ford Corp blue fans. There is solid evidence of this Ford Corp blue fan on a standard 289 in vintage production line color photographs. I've also seen many of the blue fans on original alternators sent to me for restoration so we do know they exist. The thing is I've never met an owner that was happy to find out their car came with a blue fan since it's not the best looking combination. I usually tell customers to go with the black fan unless the original alternator that was taken off their car had a blue fan. The best way and sometimes only way to tell if your original fan was blue is to take it off and inspect the area protected by the pulley. I wish I could be more help but as the research develops I will update this page. Please help me by forwarding any documentation you have so I can add it to the database.

Dealer inquiries welcome