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Wiseco Harley 1340 3507X-4724,4725P1 Piston Kit

SKU: WISK1666

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports...

Wiseco Harley 1340 3507X-4724,4725P1 Piston Kit

SKU: WISK1666

Powersports Piston and Ring Kits

WIS Piston Sets - Powersports...

A$770.63
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

Wiseco Harley 1340 3507X-4724,4725P1 Piston Kit

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.

Additional Information

Wiseco 4 Stroke Forged Series Piston Kit, 3.508 in. Bore, 10:1 CR

Part Type

Engine Piston Set

Product Overview

Wiseco .010 85-99 BIG TWIN WISCO


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 09:44:50

Data: v4.2 - Upd: 2026-11-08 13:52:00

Features

  • 3.508 in. Bore, 10:1 CR
  • Dedicated forgings allow for optimized strength-to-weight ratio
  • Designed and built for each specific 4-stroke powersports engine
  • Designed and built specifically for each V-Twin engine platform
  • Engineered, forged, and machined in the USA in Mentor, OH
  • Improved tensile strength of forged material optimizes strength and service life
  • Includes high-quality piston rings, wrist pin(s), and circlips
  • Optimized compression ratio to fit your build and performance goals
  • Wrist pin, rings and circlips included

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: piston)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Description:Wiseco .010 85-99 BIG TWIN WISCO
Part Number:wisK1666

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Wiseco, WISECO-PRO TRU
StreetFX SKU wisK1666
SFX Item ID 4064650
Accounting SKU wis-K1666
Manufacturer SKU K1666
Manufacturer UPC 193564149817
Alternative References K1666, WIS-K1666

Piston and Ring Kit, Powersports, Forged, Aluminum, Harley-Davidson®, Kit

Wiseco powersports piston kits include your rings, piston pin, and circlips. Wiseco has a decade of experience producing quality pistons for dirt bikes, ATVs, snowmobiles, outboard marine engines, and motorcycles. Their piston kits provide strong, lightweight pistons with optimized designs that improve engine efficiency and maximize your torque and throttle response. Plus, Wiseco powersports piston kits are produced right here in the USA. It's time to blaze your own trail with Wiseco powersports piston kits.

Product Attributes
BrandWiseco
Manufacturer's Part NumberK1666
Part TypePowersports Piston and Ring Kits
Product LineWiseco Powersports Piston Kits
UPC00193564149817
Piston MaterialForged aluminum
Bore (in.)3.508 in.
Wrist Pin StyleFloating
Wrist Pin Retainers IncludedYes
Top Ring MaterialCast iron
Top Ring Facing MaterialMoly
Second Ring MaterialCast iron
Second Ring Facing MaterialCast iron
Oil Ring MaterialChrome plated stainless steel
File FitNo
GaplessNo
Gaskets IncludedNo
QuantitySold as a kit.
NotesKit includes 2 pistons, rings, circle clips, and 2 wrist pins.

Manufacturer Attributes
Piston Oversize 0.010
Compression Ratio Actual 10:1
Piston Material 2618
Piston Diameter 3.5055
Bore Diameter 3.508
Product Series 4 Stroke Forged Series
Engine Evo 80
Make Harley-Davidson
Title - Web Harley-Davidson Evo 80 Wiseco Piston Kit - 3.508 in. Bore
Engine Type ICE
Skirt Coating No
Included Components Piston #4724P1, Ring Set #3507X, Wrist Pin #S534, CirClip #W5731
Product Type Piston Kits
Industry Powersports
Product Market V-Twin
Title Wiseco 4 Stroke Forged Series Piston Kit, 3.508 IN Bore, 10:1 CR
Out of Stock Message Estimated Shipped Date 3-4 Weeks
Category Hierarchy Powersports>Pistons>Piston Kits>V-Twin Engine Piston Kits
Manufacturer Designation Harley 1340 KIT (3507X-4724,4725P1
Product Class Engine Piston Set
Construction/Type Wiseco 4 Stroke Forged Series Piston Kit, 3.508 in. Bore, 10:1 CR
Product Outline <ul><li>Engineered, forged, and machined in the USA in Mentor, OH</li><li>Improved tensile strength of forged material optimizes strength and service life</li><li>Designed and built specifically for each V-Twin engine platform</li><li>Optimized compression ratio to fit your build and performance goals</li><li>Wrist pin, rings and circlips included</li></ul>
Vehicle Brief Harley 1340 KIT (3507X-4724,4725P1
Market 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.

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