WD Bearing 6305ZZ Transmission Main Ball Bearing for Harley-Davidson EL/FL (1936–1945)
The WD Bearing 6305ZZ is a direct replacement mainshaft ball bearing designed for Harley-Davidson 3- and 4-speed transmissions, specifically for EL and FL models built between 1936 and 1945. Built from hardened steel, it supports reliable power transfer and long-term drivetrain integrity on vintage motorcycles.
- Inner diameter: 25 mm (approximately 1 inch)
- Fits 1941–1984 4-speed main shafts
- Material: hardened steel for durability
- Manufactured in China to meet OEM standards and specifications
- OEM cross-reference compatibility: 9020 and 2280-36
- Includes accessory items: bearing retaining plate, transmission mainshaft ball bearing, bearing housings
Designed for restoration or repair projects, this bearing helps maintain smooth operation of the transmission and supports the longevity of the motorcycle’s drivetrain. With a precise fit and robust construction, it provides a reliable upgrade path for vintage Harley-Davidson restorations and routine maintenance alike. The product is identified by part number 6305ZZ and is offered by WD Bearing for classic Harley-Davidson EL and FL models from 1936 through 1945.
Mainshaft ball bearing for 3 and 4 speed models. Bearing is manufactured of high quality hardened steel for improved reliability.
The WD Bearing 6305ZZ Transmission Main Ball Bearing is a high-quality replacement designed specifically for vintage Harley Davidson motorcycles, including models from 1936 to 1945. With an inner diameter of 25mm (approximately 1 inch), this bearing fits perfectly onto 1941-1984 4-speed main shafts, ensuring smooth operation and reliable performance. Crafted with precision from durable materials, this bearing helps maintain the integrity of your transmission system and supports the longevity of your motorcycle's drivetrain.
Manufactured in China, the WD Bearing 6305ZZ meets OEM standards and is compatible with part numbers 9020 and 2280-36, making it a reliable choice for restoration or repair projects. The bearing's robust construction and precise fit contribute to efficient power transfer and reduce wear over time. This product includes accessory items such as a bearing retaining plate, transmission mainshaft ball bearing, and bearing housings, providing everything needed for a comprehensive installation or upgrade.
Designed for Harley Davidson EL and FL models from 1936 through 1945, the WD Bearing 6305ZZ ensures compatibility across a wide range of vintage motorcycles. Its high-quality build and precise engineering make it an essential component for maintaining optimal transmission function, whether you're restoring a classic bike or performing routine maintenance. Trust WD Bearing for dependable performance and a seamless fit that helps keep your Harley running smoothly for years to come.
Features:
- Inner diameter of 25mm (approx. 1 inch) to fit 1941-1984 4-speed main shafts
- Durable construction for reliable performance in vintage Harley Davidson motorcycles
- Manufactured in China to meet OEM standards and specifications
- Compatible with OEM cross-reference parts 9020 and 2280-36
- Includes accessory items: bearing retaining plate, transmission mainshaft ball bearing, and bearing housings
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 FL 1965
Harley Davidson FL 1966
Harley Davidson FL 1967
Harley Davidson FL 1968
Harley Davidson FL 1969
Harley Davidson FL 1970
Harley Davidson FL 1971
Harley Davidson FL 1972
Harley Davidson FL 1973
Harley Davidson FL 1974
Harley Davidson FL 1975
Harley Davidson FL 1976
Harley Davidson FL 1977
Harley Davidson FL 1978
Harley Davidson FL 1979
Harley Davidson FL 1980
Harley Davidson FL 1981
Harley Davidson FL 1982
Harley Davidson FL 1983
Harley Davidson FL 1984
Harley Davidson FX 1971
Harley Davidson FX 1972
Harley Davidson FX 1973
Harley Davidson FX 1974
Harley Davidson FX 1975
Harley Davidson FX 1976
Harley Davidson FX 1977
Harley Davidson FX 1978
Harley Davidson FX 1979
Harley Davidson FX 1980
Harley Davidson FX 1981
Harley Davidson FX 1982
Harley Davidson FX 1983
Harley Davidson FX 1984
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
