1 6

CP-Carrillo M5122 Piston Set (M8 - 131ci - 4.310" Bore)

CP-Carrillo M5122 Piston Set (M8 - 131ci - 4.310" Bore)

$770.50
$770.50
Sale Sold out

M5122

Availability:  Only 4 Item Left in stock 4

*NOTE*  This product has the following shipping restriction(s):

This product is not legal for sale or use in California on pollution-controlled motor vehicles. Orders with California shipping addresses will be canceled. All orders will be drop shipped directly from an out-of-state distribution center in accordance with applicable federal and state regulations. International buyers are solely responsible for compliance with all local import and emissions regulations.

Descriptions

High-performance forged pistons from CP-Carrillo, engineered for Milwaukee-Eight 131ci big-bore builds. Strong, lightweight, and designed for reliable high-compression power. Ideal for 131ci performance builds wanting strong torque, fast throttle response, and street-reliable power.

Key Features:

  • 4.310” bore
  • 4.500" stroke
  • ~12.0:1 compression ratio
  • 1.080" compression height
  • +0.39cc dome (high-compression)
  • Forged CP-Carrillo piston construction
  • Lightweight design for quick revs
  • Includes wrist pins & rings
  • Laser-etched with Fast Performance Cycles Logo for product validation and streamlined warranty support

Fitment:

  • Harley-Davidson Milwaukee-Eight (2017–2022)
  • 4.310” bore cylinders
  • 131ci builds using 4.500” stroke
Item Inquiry

  • We're the Experts Ask us anything. We pride ourselves on being your product expert!
  • FAST Shipping Everything in stock! Orders ship daily Mon - Fri.
  • Unlimited support Have a question? Give us a call and speak with a technician.
View full details

OUR PRODUCTS

Testimonials Left Image

What Satisfied Riders Are Saying:

See What Our Clients Have to Say About Our Quality Motorcycle Repair Services.

I had an urgent issue with my motorcycle and needed it repaired quickly, and I couldn't have been more pleased with the service I received. The staff at Fast Performance Cycles was extremely knowledgeable and professional, and they took the time to thoroughly explain the repairs that were necessary.

Authorized Dealer Logo

Johnson Doe

Denver, USA

I had an urgent issue with my motorcycle and needed it repaired quickly, and I couldn't have been more pleased with the service I received. The staff at Fast Performance Cycles was extremely knowledgeable and professional, and they took the time to thoroughly explain the repairs that were necessary.

Authorized Dealer Logo

Johnson Doe

Denver, USA

I had an urgent issue with my motorcycle and needed it repaired quickly, and I couldn't have been more pleased with the service I received. The staff at Fast Performance Cycles was extremely knowledgeable and professional, and they took the time to thoroughly explain the repairs that were necessary.

Authorized Dealer Logo

Johnson Doe

Denver, USA