– Chrome
– Vented
– 2.5″ diameter
– Fits right side gas tanks on H-D 1973-1982 Big Twins.
– Replaces Harley # 61102-73a
These bayonet style gas caps (also known as cam gas caps) are vented and are chromed steel. This is a 2.5″ diameter gas cap, larger than the 1972 and earlier 2″ diameter gas caps.
This vented cap works with the right side gas tank on H-D Big Twins 1973-1982. For more information read the differences for various year range motorcycles below. This gas cap replaces Harley-Davidson OEM # 61102-73a.
61103-36
61103-36
. Bayonet style gas cap both left and right. The left side cap is non-vented and the underside is ‘taller’ than the right side, vented cap. This is because the cam bungs on the gas tanks are different left to right side, and gas caps are not interchangeable. Caps are approximately 2″ diameter. OEM #s
61103-65
for the left, unvented and 61103-36 for the vented right (Same as earlier year range)
61102-73a
. Bayonet style gas cap both left and right. The left side cap is non-vented and the underside is ‘taller’ than the right side, vented cap. Caps are a larger, approximately 2.5″ diameter and have a domed top. OEM #s
61103-073a
for the left, non-vented and 61102-73a for the vented right side cap.









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