Australia-wide shipping on performance, 4x4 and vehicle-specific upgrades.

Wiseco HD Milwaukee 8 CVO 128cid 11.01 CR (X) Piston Kit

SKU: WIS40226PS

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

Wiseco HD Milwaukee 8 CVO 128cid 11.01 CR (X) Piston Kit

SKU: WIS40226PS

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports

A$509.48
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
View cart
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Wiseco Black Edition pistons are designed and built to be the ultimate in piston performance and durability for Harley-Davidson engines. Introducing proprietary, industry first coatings, Black Edition pistons perform as good as they look. Wiseco's ArmorX coating protects critical areas of the piston for miles and miles of riding, while ArmorFit skirt coating helps reduce engine noise and friction. Equip your performance Harley build with the American-made pistons it deserves.

Part Type

Engine Piston

Data: v4.2 - Upd: 2026-09-30 17:37:55

Features

  • 4.250 in. Bore, 11:1 CR
  • ArmorFit skirt coating allows forged piston to be installed at tighter clearance, conforming to the cylinder bore through normal
  • ArmorFit skirt coating allows forged piston to be installed at tighter clearance, conforming to the cylinder bore through normal operation for ideal performance with less guesswork
  • ArmorX coating applied to piston crown, ring grooves, and pin bore through proprietary electrochemical process and materials
  • Engineered, forged, and machined in the USA in Mentor, OH
  • Greatly increased resistance to wear and damage caused by heat and detonation plus resists ring microwelding
  • Ideal for high-performance environments - from natural aspiration to power adders
  • Kits include ring packs, wrist pins, and circlips
  • Remains durable in high load, high cylinder pressure, high heat environments
  • Various compression ratios and bore sizes available off the shelf to fit specific builds

Specifications

Product Attributes - Brand
Wiseco
Product Attributes - Manufacturer's Part Number
40226PS
Product Attributes - Part Type
Powersports Piston and Ring Kits
Product Attributes - Product Line
Wiseco Black Edition V-Twin Piston Kits
Product Attributes - UPC
193564127235
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Piston Style
Dish, with four valve reliefs
Product Attributes - Piston Head Volume (cc)
+9.80cc
Product Attributes - Bore (in.)
4.250 in.
Product Attributes - Bore (mm)
107.950mm
Product Attributes - Stroke
4.500 in.
Product Attributes - Wrist Pin Style
Floating
Product Attributes - Pin Diameter (in.)
0.927 in.
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - File Fit
No
Product Attributes - Gapless
No
Product Attributes - Gaskets Included
No
Product Attributes - Quantity
Sold as a kit.
Product Attributes - Notes
Piston kit requires a re-sleeve or aftermarket cylinders and cylinder head blind hole needs plugged.

Reference Information

Brand Name/s Wiseco
StreetFX SKU wis40226PS
SFX Item ID 4067682
Supplier Item Code 4067682
Manufacturer SKU 40226PS
Manufacturer UPC 193564127235
Alternative References 128cid

Compatibility

Application Data
  • MakeHARLEY-DAVIDSON
    ModelFLHTCUTGSE CVO TRI GLIDE
    Beginning Year2020
    Ending Year2021
    Powersports Compression Ratio11.00 to 1
    Application NotesPiston kit requires a re-sleeve or aftermarket cylinders and cylinder head blind hole needs plugged.
  • MakeHARLEY-DAVIDSON
    ModelFLHTKSE CVO LIMITED
    Beginning Year2017
    Ending Year2021
    Powersports Compression Ratio11.00 to 1
    Application NotesPiston kit requires a re-sleeve or aftermarket cylinders and cylinder head blind hole needs plugged.
  • MakeHARLEY-DAVIDSON
    ModelFLHXSE CVO STREET GLIDE
    Beginning Year2017
    Ending Year2021
    Powersports Compression Ratio11.00 to 1
    Application NotesPiston kit requires a re-sleeve or aftermarket cylinders and cylinder head blind hole needs plugged.
  • MakeHARLEY-DAVIDSON
    ModelFLTRSE3 CVO ROAD GLIDE
    Beginning Year2017
    Ending Year2019
    Powersports Compression Ratio11.00 to 1
    Application NotesPiston kit requires a re-sleeve or aftermarket cylinders and cylinder head blind hole needs plugged.
  • MakeHARLEY-DAVIDSON
    ModelFLTRXSE CVO ROAD GLIDE
    Beginning Year2017
    Ending Year2021
    Powersports Compression Ratio11.00 to 1
    Application NotesPiston kit requires a re-sleeve or aftermarket cylinders and cylinder head blind hole needs plugged.

Loading compatibility information...

Keep shopping

More from Wiseco