Harley-Davidson® Screamin ’ Eagle® Pro Twin Cam Forged Piston Kit for 4-5/8" Stroke- 4.060" Standard Bore - 22574-10

Mouse over for detailHarley-Davidson® Screamin ’ Eagle ® Pro Twin Cam Forged Piston Kit for 4-5/8 Stroke - 22574-10
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Item Number: 22574-10
We would be happy to order this product for you. It is currently not in stock. You can still add this product to your cart and we will order it from our supplier. We will ship it to you as soon as it arrives. Usually ships within 5 to 8 business days. Please expect 9 to 12 days for delivery.


Forged from high-strength aluminum, these 10.5 to 1 ratio
pistons feature nickel-plated surfaces for enhanced durability
and a special Teflon® coating for improved wear-resistance
required for racing applications. These pistons include
Titanium SST rings to withstand the stresses seen in racing.
Complete kit includes pistons, rings, wrist pins and clips. All
EFI models require ECM

*Recalibration is required for proper installation. See Dealer for details. Labor cost not included.

*NOTICE: Always check piston-to-valve clearance with modified dome pistons and non-stock cam shafts.

Check out our large selection of Harley-Davidson® Accessories



See Cylinder Head/Piston Combination Compression Ratio Chart Here

  1. Product Fitment
  2. Disclaimers

Fits ’06-later Dyna®, ’07-later Softail® (except FLSS and FLSTFBS) and ’07-later Touring models equipped with 4.060 cylinders, 4-5/8" Flywheel and Rod assembly, 110+ Cylinder Heads, MVA Cylinder Heads or ACR Performance Cylinder Heads. Does not fit Twin-Cooled™ models.

CROSSED FLAG: Harley-Davidson® motorcycles modified with some (Screamin' Eagle®) performance engine parts must not be used on public roads and in some cases may be restricted to closed-course competition. In this Screamin' Eagle® section, all engine-related performance parts identified with the crossed flags symbol are intended for racing applications only and are not legal for sale or use in California on pollution-controlled vehicles. Alterations of emission related components constitutes tampering under the US EPA guidelines and can lead to substantial fines and penalties.

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