Std Pistons with 12:1 Compression Ratio. Fits Milwaukee-Eight 2017up with Big Bore 114ci to 128ci Engine.

CP Carrillo M5112 Piston Kit

The CP Carrillo M5112 Piston Kit is built for riders and engine builders who demand precision, performance, and durability. Featuring an X-forged lightweight design with double pin oilers and premium ring components, this kit is ideal for high-performance applications requiring larger valves and high-lift cams. Proudly made in the USA, it delivers strength, reduced friction, and reliable sealing for maximum engine efficiency.

Features & Benefits

• ID: #14208

• Bore: 4.250"

• Stroke: 4.375"

• Top Ring: Steel gas nitride coated for superior wear resistance.

• Second Ring: Ductile iron Napier design enhances oil control and sealing.

• Oil Ring: Three-piece flex vent type for improved oil regulation.

• Construction: X-forging for reduced weight and increased strength.

• Lubrication: Double pin oilers for consistent oil flow and cooling.

• Performance Design: Compatible with +1mm larger valves and high-lift cams if needed.

• Kit Includes: Two pistons, ring sets, wrist pins, and clips.

Tech Tips

• Additional Recommendation: Top end gasket kit #CG-C10223.

• Cylinder Compatibility: Requires Daytona "Drop-in" 4.250" bore cylinders #DAY-80660.

• Installation: Follow manufacturer’s ring end gap and piston-to-cylinder clearance instructions carefully.

• Fitment Check: Measure the existing bore before purchase to confirm correct piston size — piston kits cannot be returned once opened.

MFR Part No: M5112
ROLLIES Part No: CAR-M5112
Origin: Proudly made in the USA by CP Carrillo Pistons.