Wiseco Piston Kit 1984-1999 Harley-Davidson Big Twin 1340cc K1675

A top-end rebuild demands precision components that can handle the stress of high-compression combustion cycle after cycle. Wiseco's high-silicon aluminum alloy pistons are engineered to resist thermal fatigue and maintain tight tolerances, keeping your Big Twin reliable whether you're pushing peak horsepower or logging miles on the street. This complete kit eliminates the guesswork—you get forged pistons, rings, wrist pins, and circlips all matched for your 1340cc engine, plus a full gasket set to seal everything tight on reassembly.

Whether you're running an overbore or refreshing a tired top-end, the K1675 delivers the durability and fitment that professional rebuilders trust. Installation is straightforward for experienced mechanics, though we recommend professional service if you're new to Big Twin engine work.

• High-silicon aluminum alloy
• Forged piston construction
• Includes rings, wrist pins
• Circlips included
• Complete gasket set
• 1984–1999 Big Twin compatible
• 1340cc displacement rated
• Cylinder sleeves sold separately
• Bolt-on installation (engine removal required)