Wiseco Black Edition Piston Kit - TC 103 CID 10.5:1 Cooled — Harley-Davidson (1999-2017)

Wiseco Black Edition piston kit for Twin Cam 103 CID engines at 10.5:1 compression, engineered for Harley-Davidson and Indian Motorcycle V-twins. Premium forged pistons with ArmorX and ArmorGlide coatings reduce friction, wear, and noise while delivering consistent ring seal and oil control.

Features

• Premium compression ring for ultimate ring seal
• Napier second ring with taper face and underhook for improved oil control
• 3mm oil ring design with higher tension for enhanced oil control
• Armor X piston coating reduces wear
• ArmorGlide skirt coating reduces friction and improves scuff resistance
• Compatible with OEM and Screamin' Eagle cylinder heads

Specifications

• Brand: Wiseco
• Manufacturer Part #: K2794
• Engine: Twin Cam 103 CID 10.5:1
• Length: 9 in
• Width: 4 in
• Height: 4 in
• Weight: 2.4 lbs

Fitment

Fits Harley-Davidson and Indian Motorcycle V-twin engines with Twin Cam 103 CID displacement and 10.5:1 compression ratio.

Frequently Asked Questions

Will this kit work with my stock Harley heads?

Yes — these pistons work with both OEM and Screamin' Eagle cylinder heads on Twin Cam 103 CID engines.

What compression ratio do these pistons give?

This kit is designed for 10.5:1 compression on Twin Cam 103 CID engines.

What's included in the kit?

The piston kit includes all pistons, rings, and pins needed for a complete piston replacement.

Do I need new cylinders to install these?

Piston installation typically requires honing the cylinders to proper clearance. Consult your engine builder or shop manual before proceeding.

Why the special coatings on these pistons?

ArmorX reduces wear and ArmorGlide cuts friction and heat — both help the engine run cooler, quieter, and last longer under high performance.