Colony Cadmium Transmission Fill Plug Seven Eighths Inch 18 Thread Harley EL UL

The Colony Cadmium Transmission Fill Plug provides a 7/8" diameter with 18 threads per inch (7/8"-18) for vintage Harley-Davidson transmissions, delivering a secure seal in classic cases.

Designed for Harley-Davidson motorcycles from the 1930s onward, this fill plug fits EL models 1936–1941 and UL models 1937–1948, with compatibility extended to FL and FX families in later years as listed by Colony.

• Material/finish: Cadmium coating for corrosion resistance
• Thread size: 7/8 inch diameter x 18 threads per inch
• Country of origin: USA
• Compatibility: Harley-Davidson EL 1936–1941; UL 1937–1948; FL 1941–1984; FX 1971–1984

Made in the USA, this plug supports durability for restoration projects or routine maintenance, helping ensure proper seal and efficient fluid management within the transmission assembly.

Installation is straightforward for experienced mechanics and enthusiasts, making it a dependable choice for maintaining vintage Harley-Davidson bikes.

Trust Colony for quality replacement parts that meet the specifications of your vintage Harley-Davidson motorcycle and keep your bike running smoothly for years to come.

Cadmium transmission fill plug standard 7/8 inch X 18 thread.

The Colony Cadmium Transmission Fill Plug is designed for vintage Harley Davidson motorcycles, specifically fitting models from 1936 to 1941 including the EL and UL series. Crafted with precision, this fill plug features a standard 7/8 inch diameter with an 18-thread pitch, ensuring a secure and reliable fit for your transmission system. Made in the USA, this component adheres to high manufacturing standards, offering durability and corrosion resistance suitable for restoration projects or routine maintenance. Its cadmium finish provides additional protection against rust, extending the lifespan of your motorcycle's transmission components. Installation is straightforward for experienced mechanics and enthusiasts alike, making it a dependable choice for maintaining vintage Harley Davidson bikes. Whether you're restoring an original part or performing maintenance on a classic motorcycle, this fill plug guarantees a proper seal and efficient fluid management within the transmission assembly. Trust Colony for quality replacement parts that meet the specifications of your vintage Harley Davidson motorcycle and keep your bike running smoothly for years to come.

Features:

• Material: Cadmium coating for corrosion resistance

• Thread Size: 7/8 inch diameter x 18 threads per inch

• Country of Origin: USA

• Compatibility: Fits 1936-1941 Harley Davidson EL and UL models

• Easy to install and replace

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