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Screamin' Eagle High Compression Pistons – 135 CI

$587.00

Part Number: 21900164A
Free Shipping with $75 Purchase

High-compression pistons 4.310" bore.

  • Forged flat-top pistons

  • Piston design and rings engineered to withstand increased combustion forces for outstanding durability

  • Updated ring package with 1mm compression and scraper rings

  • Gas-ported to assist with ring sealing while allowing for low-tension and reduced friction

Replacement pistons for '21-later Milwaukee-Eight Touring models equipped with 135CI Stage IV Performance Crate engine.

Installation Instructions

Dealer Install Recommended:

Yes

ECM Calibration Required:

Yes

Sold In Units:

Pair

In the Box:

Pistons, Rings, Clips and installation instructions

WARRANTY:

1 year limited warranty – Go to www.h-d.com/warranty for full details

Harley-Davidson® motorcycles modified with some Screamin’ Eagle® Performance products must not be used on public roads and, in some cases, may be restricted to closed-course competition. These performance parts are 49-state U.S. EPA compliant but are NOT compliant for sale or use in California on pollution-controlled motor vehicles. California guidelines on tampering can also lead to substantial fines and penalties. Screamin’ Eagle® Performance products are intended for the experienced rider only.