Sifton 17-0612 4-Speed Transmission Mainshaft Kit

2025 New Production 4-speed Sifton transmission mainshaft kit.

The Sifton 17-0612 4-Speed Transmission Mainshaft Kit includes an 11-3/4-inch transmission mainshaft, ball bearing, ratchet gear, nut, and lock tab. This kit provides the listed mainshaft components together in one package for applicable transmission service.

The kit has an overall length of 11-11/16 inches and is listed for 1941–1950 Harley-Davidson FL models. Verify the application and required components before ordering to ensure this kit matches your transmission service needs.

Suggested related items include the Sifton 17-1482 11-3/4-inch Transmission Mainshaft, 17-0730 Kick Starter Gear, 12-0307 Transmission Main Ball Bearing, and 12-0206 Kick Starter Clutch Gear Key. The Sifton 17-0612 kit is manufactured in Taiwan.

Features:

• Kit Contents: Includes an 11-3/4-inch transmission mainshaft, ball bearing, ratchet gear, nut, and lock tab.
• Application: Listed for 1941–1950 Harley-Davidson FL models.
• Overall Length: 11-11/16 inches.
• Unit of Measure: Kit.
• Country of Origin: Taiwan.

Fitment:
Harley Davidson EL 1936
Harley Davidson EL 1937
Harley Davidson EL 1938
Harley Davidson EL 1939
Harley Davidson EL 1940
Harley Davidson FL 1941
Harley Davidson FL 1942
Harley Davidson FL 1943
Harley Davidson FL 1944
Harley Davidson FL 1945
Harley Davidson FL 1946
Harley Davidson FL 1947
Harley Davidson FL 1948
Harley Davidson FL 1949
Harley Davidson FL 1950
Harley Davidson FL 1951
Harley Davidson FL 1952
Harley Davidson FL 1953
Harley Davidson FL 1954
Harley Davidson FL 1955
Harley Davidson FL 1956
Harley Davidson FL 1957
Harley Davidson FL 1958
Harley Davidson FL 1959
Harley Davidson FL 1960
Harley Davidson FL 1961
Harley Davidson FL 1962
Harley Davidson FL 1963
Harley Davidson FL 1964
Harley Davidson UL 1937
Harley Davidson UL 1938
Harley Davidson UL 1939
Harley Davidson UL 1940
Harley Davidson UL 1941
Harley Davidson UL 1942
Harley Davidson UL 1943
Harley Davidson UL 1944
Harley Davidson UL 1945
Harley Davidson UL 1946
Harley Davidson UL 1947
Harley Davidson UL 1948