Wiseco K1609 74-Inch FL-FLH Piston Set, .040-Inch Oversize

Wiseco piston set is .040 oversize and is for a 3-7/16 inch bore . Piston set has a 9:1 compression and includes rings.

The Wiseco K1609 74-inch FL-FLH Piston Set is designed for 1941–1950 Harley-Davidson FL applications and features a .040-inch oversize specification. This piston set is supplied as a kit for applicable engine rebuilding and replacement needs.

After installation, run the engine at moderate speeds for at least 500 miles. Avoid excessive operation in lower gears during this period to help properly break in the new pistons and rings. Refer to the Wiseco Piston Installation Guide and Fitment instructions for installation information.

Brand: Wiseco
Part Number: K1609
Unit of Measure: Kit
Country of Origin: USA

Features:

• Application: Fits 1941–1950 Harley-Davidson FL models
• Engine Size: 74-inch FL-FLH application
• Oversize: .040-inch oversize
• Product Type: Piston set supplied as a kit
• Break-In Guidance: Run the engine at moderate speeds for at least 500 miles and avoid excessive running in lower gears during break-in
• Instructions: Wiseco Piston Installation Guide and Fitment instructions are referenced in the product data

Fitment:
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 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