Year: Late 1966 production thru 1973
Model: Service replacement for all engines with a single sheave pulley alternator (excluding 289HP, 1970 Boss 302, 427, Boss 429 & 429 S/CJ)
Condition: New reproduction
Size: OD 2.84 x 1.015 inch deep
Finish: Yellow zinc (zinc dichromate)
Engineering #: Not stamped

Accuracy rating: 7
Best Repro Available: YES

Jack's Comments:

This is a very good copy of standard sized small single pulley for most single sheaved equipped alternators. It doesn't have any engineering numbers stamped on it like most of the originals did and some radiuses are not exact but its the best available by far.

Concours Note: This pulley with a yellow zinc finish from used during late production 1966 thru 1973.  Autolite started to phase out the black painted pulleys late in 1966 production. We do not have a exact change over date but we have documented a few cars with original alternators to give you some guidance (see below).

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

Ford Part numbers: C5AZ-10344-A, C5AZ-10344-F, C5AZ-10344-G, C5AZ-10344-K, E8TZ-10344-A