1965-1967 CORVETTE Original Alternator pulley.
 
black oxide, one piece fan and pulley assembly. 2 13/16" O.D.
 
GM Part Number: 3909815.
 
APPLICATIONS:
 
1965 with 327/250-350 h.p. and A/C. (Service replacement)
1966 327/300 h.p. and A/C. (Service replacement)
1967 300 h.p. w/o A/C. & 350 h.p. w/o P/S or A/C. (Correct)