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Wiseco Powersports Piston Kits 4012PS and Ring Kit, Forged Aluminum, 3.437 in., Harley-Davidson®, Kit

Wiseco Powersports Piston Kits 4012PS and Ring Kit, Forged Aluminum, 3.437 in., Harley-Davidson®, Kit

A$434.33
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


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 20:16:59

Data: v4.2 - Upd: 2026-11-08 20:06:40

Features

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

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Wiseco, WISECO-PRO TRU
StreetFX SKU wis4012PS
SFX Item ID 4764435
Accounting SKU wis-4012PS
Manufacturer SKU 4012PS
Manufacturer UPC 193564126764
Alternative References 4012PS, WIS-4012PS

Piston and Ring Kit, Forged Aluminum, 3.437 in., 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 Number4012PS
Part TypePowersports Piston and Ring Kits
Product LineWiseco Powersports Piston Kits
UPC00193564126764
Piston MaterialForged aluminum
Bore (in.)3.437 in.
Stroke3.968 in.
Rod Length7.440 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 MaterialStainless steel
Oil Ring Facing MaterialChrome
File FitNo
GaplessNo
Gaskets IncludedNo
QuantitySold as a kit.
NotesDesigned for Harley-Davidson® Shovelhead and Panhead 74 cu. in. engines.

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