S&S Cycle Billet Oil Pump for Big Twin Engines - Manual (Page 3)

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Picture 3
Picture 4
Picture 5
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Oil pump bodies for different kits feature important differences in internal machining. Before beginning installation, compare pump body you received
with those in photos. See Pictures 2 & 3. Pump bodies are designed for specific year groups and must not be interchanged or installed on engines
other than those they were designed for.
•
Oil pump bodies and covers for 1992-up engines have slightly different mounting bolt patterns than covers for earlier engines. See Picture 4.
•
S&S® manufactures five different covers for new oil pumps. See Picture 5. Differences involve early and late bolt patterns, placement of oil line fittings,
and presence or absence of oil pressure sending unit hole.
Picture 2
31-6048
1936-'72
31-6049
1965-'69
31-6050
1970-'91
31-6051
1992-Up 31-6048
1936-'72
31-6049
1965-'69
31-6050
1970-'91
31-6051
1992-Up
1991-Earlier 1992-Up
31-6059 31-6060 31-6061
31-6062 31-6063