Wiseco piston set is standard 3-7/16 inch bore. Pistons have a compression ratio of 9:1 and includes rings.
Motorcycle Fitment
Harley-Davidson FL (1941-1977)
Harley-Davidson FX (1971-1977)
Technical Notes
Important: Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.
Specs / Product Details
V-Twin Part Number: 11-9725
Manufacturer: Wiseco
Manufacturer Part Number: K1605
Origin: United States
Unit of Measure: KIT
Related Parts (sold separately — search OUR STORE)
Accessory: 16-0622 — Ring-O-Matic Ring Compressor Tool Kit
Accessory: 16-0029 — Connecting Rod Clamping Tool
Accessory: 60-0167
Shipping & Returns
Please review estimated delivery timing and shipping service on the listing.
Returns are handled according to the listing return policy.
Please review photos, specifications, fitment details, and notes carefully before purchase.