Andrews K Knuckle Cam for Harley Davidson 1936-47 OHV Big Twin models

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Andrews K Knuckle Cam for Harley Davidson 1936-47 OHV Big Twin models

Amazing, but there are still a lot of Knuckle engines going strong. They have been around for more than 65 years. How many other bikes can make this kind of a claim for long life and durability?

Bike Fitment
1936-1947 Harley Davidson E
1936-1947 Harley Davidson EL
1941-1947 Harley Davidson F
1941-1947 Harley Davidson FL