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Wiseco Marine 2-Stroke Forged Series Piston Kits 3137S4 Engine Piston, Mercury 2.5L STBD 1992-99 3544KD

SKU: WIS3137S4

Pistons

Wiseco Marine 2-Stroke Forged Series Piston Kits 3137S4 Engine Piston, Mercury 2.5L STBD 1992-99 3544KD

SKU: WIS3137S4

Pistons
A$271.96
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 20:17:09

Data: v4.2 - Upd: 2026-11-08 20:06:37

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 wis3137S4
SFX Item ID 4764575
Accounting SKU wis-3137S4
Manufacturer SKU 3137S4
Manufacturer UPC 193564129420
Alternative References 3137S4, WIS-3137S4

Engine Piston, Mercury 2.5L STBD 1992-99 3544KD

The Wiseco legacy is rooted in 2-stroke piston manufacturing and performance, dating back to 1941--over 80 years ago. Today, their pistons are the result of decades of experience, incorporating the latest in 2-stroke piston manufacturing and design to deliver the performance Wiseco built its name on.

Wiseco Marine Forged Series 2-stroke piston kits are engineered, designed, and machined for each specific engine. The improved tensile strength of the forged aluminum material optimizes strength and service life, while these dedicated forgings, along with additional lightening operations, allow for optimized strength-to-weight ratio. Each Wiseco forged piston kit includes high-quality piston ring(s), wrist pin(s), and circlips. Select the kit with the proper specs for your marine engine.

Product Attributes
BrandWiseco
Manufacturer's Part Number3137S4
Part TypePistons
Product LineWiseco Marine 2-Stroke Forged Series Piston Kits
UPC193564129420
Piston Rings IncludedYes
Bore (in.)3.545 in.
Bore (mm)90.040mm
Piston MaterialForged aluminum
Wrist Pin StyleFloating
Wrist Pin Retainers IncludedYes
Wrist Pin IncludedYes
Pin Diameter (in.)0.770 in.
File FitNo
GaplessNo
Top Ring Thickness0.059 in.
Top Ring MaterialSteel
Second Ring Thickness0.059 in.
Second Ring MaterialSteel
RemanufacturedNo
QuantitySold as a kit.

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