Carburetor
part # model applied date qty interchange superceded
from to newer former
BLEED-AIR,COASTING #180
16058-U6700 L20B CAL 7508 1 No No 16058-B8000
BLEED-AIR,COASTING #280
16058-B8000 L20B 7409 7507 1
16058-B8000 L20B FED 7508 1