Harley XLH Sportster Sprocket Cover, 1971-74 (OEM #34870-73)
This casting was used from 1971-74. For the '71-'72 and '74 vintage, it came in polished finish. In '73, it came in black finish. Otherwise, they are exactly the same part. For '75 and later, variations in style and machining were introduced.
021820 CR-3 (19 11 24, 4-4)