Wiseco Black Edition Piston Kit - M8 117cid 11.0:1 — Harley-Davidson Street Glide, Softail Fat Boy 114, Road King Special (2017-2026)

Wiseco Black Edition piston kit for Harley-Davidson M8 117cid engines at 11.0:1 compression ratio. Features Armor X and ArmorGlide coatings for reduced wear and friction, designed to work with OEM and Screamin' Eagle cylinder heads.

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 heads

Specifications

• Brand: Wiseco
• Manufacturer Part #: K2799
• Engine Application: M8 117cid 11.0:1
• Length: 9.5 in
• Width: 4.87 in
• Height: 4 in
• Weight: 2.77 lbs
• Country of Origin: United States of America

Fitment

Fits Harley-Davidson M8 117cid engines with 11.0:1 compression ratio. Compatible with OEM and Screamin' Eagle cylinder heads.

Frequently Asked Questions

What compression ratio is this piston kit?

11.0:1 compression ratio, designed for M8 117cid Harley-Davidson engines.

Will this work with my Screamin' Eagle heads?

Yes — this kit is engineered to work with both OEM and Screamin' Eagle cylinder heads.

What coatings does this piston have?

Armor X piston coating reduces wear, and ArmorGlide skirt coating reduces friction for quieter operation and improved scuff resistance.

Is this made in the USA?

Yes — manufactured and assembled in the United States.

Do I need a tuner with this piston kit?

A compression increase to 11.0:1 typically requires an ECM tune for optimal performance and fuel management.