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Wiseco Pistons 803M04150 Off-Road Piston - 41.50mm 2-Stroke Kit

(2008 KTM 50 SX Mini; 2007-2008 KTM 50 SX; 2002-2003 KTM 50 Jr Adventure; 2002-2008 KTM 50 Mini Adventure; 2002-2007 KTM 50 Sr Adventure + 3 more models)

Manufacturer

Picture for manufacturer Wiseco Pistons

Part Number

803M04150
12 reviews
Sale Price

$107.99

Estimated ship date Friday, November 20

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Product Details

The Wiseco 803M04150 is a high-performance 41.50mm 2-stroke piston kit designed for off-road dirt bike applications. This oversize piston features a 2.00mm overbore and is engineered to deliver maximum power and reliability in demanding riding conditions.

Key Features:

  • Forged from high-silicon aluminum alloy for superior strength and heat resistance
  • Advanced forging design optimizes piston skirt geometry for maximum horsepower and torque
  • 41.50mm bore diameter with 2.00mm oversize specification
  • Complete kit includes piston, rings, wrist pin, and circlips for convenient installation
  • Precision-machined ring grooves ensure optimal compression and oil control
  • Designed specifically for 2-stroke off-road motorcycle engines

Wiseco's proven forging process creates a denser, stronger piston structure compared to cast alternatives, providing improved durability under high-RPM and high-temperature conditions. This oversize piston requires professional cylinder boring and honing to achieve proper clearances. Ideal for engine rebuilds, performance upgrades, or repairing worn cylinders on 2-stroke dirt bikes.

Products specifications

Fits

2008 KTM 50 SX Mini; 2007-2008 KTM 50 SX; 2002-2003 KTM 50 Jr Adventure; 2002-2008 KTM 50 Mini Adventure; 2002-2007 KTM 50 Sr Adventure; 2007-2008 KTM 50 SX Junior; 2002-2007 KTM 50 SX Pro Jr LC; 2001-2006 KTM 50 SX Pro Sr LC

very smooth transaction.

Very easy to conduct business on line

Quick and easy

It was fine

Easy process

Not only did they have an great price on my part, and reasonable shipping charges, they shipped it right away.<br>I know I will be checking them for future parts.

Best price we can find

easy website to use and order

Great pricing, Great service, and Great variety !!! I highly reccomend this site!!!

So far so good

One of the most reasonable prices I saw after looking at a number of different sites. This site also ja good reviews and shipped very quickly. Very happy with th purchase.

....

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