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WSM 100-125-04PK Piston Kit 3.685 Bore Port Side .010 Oversize OMC Johnson Evinrude

Manufacturer

Picture for manufacturer WSM

Part Number

100-125-04PK
12 reviews
Sale Price

$81.56

3 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The WSM 100-125-04PK is a high-quality port side piston kit designed for OMC Johnson/Evinrude loop-charged outboard motors with a 3.685" bore. This kit features a .010" (.25mm) oversize piston, ideal for engine rebuilds where cylinders have been bored to restore performance and compression.

Key Features:

  • Port side piston kit for OMC loop-charged outboards
  • 3.685" bore size with .010" oversize specification
  • Competitively priced forged piston construction
  • MOS2 coating for enhanced performance and heat absorption
  • Complete kit includes piston, rings, wrist pin, and clips
  • Manufactured to meet or exceed OEM specifications

This piston kit is specifically designed for the port cylinder position in OMC Big Bore Looper engines. WSM pistons are precision-engineered using quality materials and advanced manufacturing processes to deliver reliable performance and durability in demanding marine environments. The MOS2 coating reduces friction and improves heat dissipation, extending piston life while maximizing power output.

Note: This is a port side kit. Ensure you select the correct side (port or starboard) for your engine rebuild. For complete engine rebuilds, matching starboard side pistons are available separately.

Easy to place order

Looks like what I want . . . we'll see. Hope it is what was pictured. In any case, the order process was smooth and easy. Best price I could find too.

Good prices, but it was hard for the check out...

insufficient info presented. Before confirming payment needed to make sure part fit proper side. Info not provided had to call in waited ten minutes. Also when choosing paypal payment it wouldn't transfer. had to log off twice before final completion.

Great

Very easy

good

That was quick, thanks for the Amazon option.

easy shopping, I have my truck in the shop and waiting for the part

Very low price, fast shipping, good customer service. Product perfectly fit my needs and saved me time and money. Recommend!!!

So far so good

great prices and customer service was very helpful.

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