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Wiseco HD 1200 Evo KIT 10.51(3537X-4721P4 Piston Kit

SKU: WISK1689

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports...

Wiseco HD 1200 Evo KIT 10.51(3537X-4721P4 Piston Kit

SKU: WISK1689

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports...

A$774.33
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.
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Description

V-Twin performance has been around since some of the earliest days of motorcycle racing and engine modification, and Wiseco has been there since the beginning. Applying over 80 years of experience, Wiseco has fine-tuned its V-Twin pistons for each specific engine platform to optimize performance and durability. From reliable rebuilds to all-out race, Wiseco has the pistons for your V-Twin build.

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-10-13 16:58:54

Features

  • 3.538 in. Bore, 11.4:1 CR
  • Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
  • Designed and built specifically for each V-Twin engine platform
  • Engineered, forged, and machined in the USA in Mentor, OH
  • Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
  • Improved tensile strength of forged material optimizes strength and service life
  • Optimized compression ratio to fit your build and performance goals
  • Performance-Enhancing Features: Varied across applications to maximize both durability and power
  • Wrist pin, rings and circlips included

Specifications

Product Attributes - Brand
Wiseco
Product Attributes - Manufacturer's Part Number
K1689
Product Attributes - Part Type
Powersports Piston and Ring Kits
Product Attributes - Product Line
Wiseco Powersports 4-Stroke Forged Series Piston Kits
Product Attributes - UPC
193564149930
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Piston Style
Dome, with two valve reliefs
Product Attributes - Piston Head Volume (cc)
-6.00cc
Product Attributes - Bore (in.)
3.538 in.
Product Attributes - Bore (mm)
89.970mm
Product Attributes - Stroke
3.812 in.
Product Attributes - Wrist Pin Style
Floating
Product Attributes - Pin Diameter (in.)
0.791 in.
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - Top Ring Thickness
1.58mm
Product Attributes - Top Ring Material
Cast iron
Product Attributes - Second Ring Thickness
1.58mm
Product Attributes - Second Ring Material
Cast iron
Product Attributes - Oil Ring Material
Stainless steel
Product Attributes - Oil Ring Thickness
3.9mm
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 fits models with stock 1,200cc cylinder heads.

Reference Information

Brand Name/s Wiseco
StreetFX SKU wisK1689
SFX Item ID 4066221
Supplier Item Code 4066221
Manufacturer SKU K1689
Manufacturer UPC 193564149930
Alternative References 10.51(3537X-4721P4

Compatibility

Application Data
  • MakeHARLEY-DAVIDSON
    ModelXL1200C SPORTSTER 1200 CUSTOM
    Beginning Year1995
    Ending Year2003
    Powersports Compression Ratio10.50 to 1
    Application NotesPiston kit fits models with stock 1,200cc cylinder heads.
  • MakeHARLEY-DAVIDSON
    ModelXL1200S SPORTSTER 1200 SPORT
    Beginning Year1995
    Ending Year2003
    Powersports Compression Ratio10.50 to 1
    Application NotesPiston kit fits models with stock 1,200cc cylinder heads.
  • MakeHARLEY-DAVIDSON
    ModelXLH1100
    Beginning Year1986
    Ending Year1987
    Powersports Compression Ratio10.50 to 1
    Application NotesPiston kit fits models with stock 1,200cc cylinder heads.
  • MakeHARLEY-DAVIDSON
    ModelXLH1200
    Beginning Year1988
    Ending Year2003
    Powersports Compression Ratio10.50 to 1
    Application NotesPiston kit fits models with stock 1,200cc cylinder heads.

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