Get 6.6% APR Representative & up to £2,000 Finance Deposit Allowance. T&C Apply
2024 H-D Homecoming™ Festival Tickets On Sale Now. Buy Tickets
Free Shipping with £50 Purchase & Free Returns - Shop Now
Free Shipping with £50 Purchase & Free Returns - Shop Now
Ready to Ride? Let us sweeten the deal. See Available Offers.
2024 H-D HOMECOMING FESTIVAL TICKETS ON SALE NOW. BUY TICKETS
Make sure this part fits
This part fits your .
This part does not fit your .
This part does not fit your .
This part fits your .

Screamin' Eagle High Compression Pistons – 135 CI

Part Number: 21900164

High-compression pistons 4.310" bore.

...Read More
Screamin' Eagle High Compression Pistons – 135 CI
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.

Dealer Install Recommended: Yes
ECM Calibration Required: Yes
WARRANTY: ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
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.
Rating Snapshot
5
0
4
0
3
0
2
0
1
0
Showing - of
Reviews
Let us know what you think. Write a review
    Showing - of
    Q&A
    Be the first to ask a question. Ask a question

      Harley-Davidson® Credit Card*

      Fund your freedom with the UK’s only credit card designed specifically for Harley® enthusiasts.

      * Harley-Davidson® Credit Card is a credit product introduced by Harley Davidson Financial Services Europe Limited and provided by Tymit Limited. Tymit Limited is authorised and regulated by the Financial Conduct Authority to perform regulated Consumer Credit activities (FRN:796994) as a lender. [Harley Davidson Financial Services Europe Limited] is an Introducer Appointed Representative of Tymit Limited for the Harley-Davidson® Credit Card products. This link, image, and content related to it is owned and operated by Harley-Davidson Financial Services Europe Limited, as an IAR of Tymit, Ltd. Harley-Davidson Motor Company has no legal interest or ownership in any of the above.