S&S Cycle Cylinder & Piston Kits — Harley-Davidson Street Glide, Softail Fat Boy 114, Road King Special (2017-2026)

S&S Cycle rear cylinder kit for 2017 Milwaukee-Eight (M8) engines with 4.250-inch bore, finished in wrinkle black with highlight accents. Drop-in replacement cylinder engineered for stock and modified M8 applications.

Features

• 4.250 in bore
• Wrinkle black finish with highlight
• Rear cylinder position
• Ready to install on 2017 M8 platform

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 910-0676
• Bore: 4.250 in
• Position: Rear cylinder
• Weight: 11.83 lb
• Category: Engine Components / Piston Sets - Powersports

Fitment

Fits 2017 Harley-Davidson Milwaukee-Eight (M8) models.

Frequently Asked Questions

What year Harley does this fit?

This cylinder is engineered for 2017 Milwaukee-Eight (M8) models. Other M8 years may require verification — contact S&S for compatibility.

Is this a complete kit with pistons?

This is the rear cylinder. Verify your kit contents — some S&S M8 kits include matching front cylinder and pistons; others are individual components.

Do I need to re-jet the carburetor or ECU?

An engine builder or tuner should verify fueling when installing displacement-altering components on your specific bike.

What finish does it come in?

Wrinkle black with highlight accents as shown.