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WSM 100-120K Standard Bore Piston Kit for Johnson Evinrude 50-70 HP 3.187 Inch

Manufacturer

WSM

<h3>About WSM Performance Parts</h3><p>WSM Performance Parts has built a strong reputation among powersports enthusiasts as a go-to source for <strong>quality replacement parts</strong> across a wide range of recreational vehicles. Based in Bohemia, New York, WSM specializes in parts for personal watercraft (PWC), marine vessels, all-terrain vehicles (ATV), utility task vehicles (UTV), and dirt bikes — making them a versatile, one-stop brand for anyone who loves getting out on the water or hitting the trails.</p><p>With a catalog spanning hundreds of part numbers, WSM is committed to delivering OEM-compatible components that meet or exceed original equipment standards. Whether you&apos;re rebuilding a jet pump on a Sea-Doo, refreshing an outboard motor, or restoring performance to an aging ATV, WSM offers the parts to get the job done right. Their mission is straightforward: provide the highest quality parts on the market at reasonable prices — a philosophy that has earned them a loyal following among weekend riders and professional mechanics alike.</p><h3>Why Powersports Enthusiasts Trust WSM</h3><p>WSM&apos;s strength lies in the depth and breadth of their product coverage. Their catalog includes everything from piston kits and gasket sets to fuel filters, shift cable bellows, jet pump repair kits, and engine rebuild components. Products are engineered to fit a wide array of popular brands including Yamaha, Sea-Doo, Kawasaki, Mercury, Suzuki, and many more, ensuring that finding the right part for your specific application is straightforward.</p><ul style="list-style:disc"><li><strong>Wide Vehicle Coverage:</strong> Parts for PWC, marine outboards, ATVs, UTVs, and dirt bikes all under one brand.</li><li><strong>OEM Compatibility:</strong> WSM parts are cross-referenced to original equipment numbers, simplifying the parts-matching process.</li><li><strong>Quality Assurance:</strong> Each product is designed to restore factory-level performance and reliability.</li><li><strong>Accessible Pricing:</strong> Performance-grade replacement parts without the premium markup of dealership pricing.</li></ul><h3>WSM Product Categories</h3><p>From jet pump rebuild kits for personal watercraft to engine components for off-road machines, WSM&apos;s catalog is designed to support serious maintenance and performance restoration. Riders who demand dependable parts — whether for a weekend trip on the lake or a full engine overhaul — will find WSM&apos;s lineup a reliable resource. Explore their <a href="/5555-wsm-automatic-transmission-master-repair-kit-7772">Automatic Transmission Master Repair Kits</a> and other drivetrain solutions available in their catalog.</p>

Part Number

100-120K
09/12/2036 5:05 AM
Sale Price

$87.98

1 left at this price

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Usually delivered within 2 days

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Product Details

The WSM 100-120K is a high-quality standard bore piston kit designed for Johnson and Evinrude 3-cylinder looper outboard motors with a 3.187 inch bore. This competitively priced kit features forged pistons with MOS2 (molybdenum disulfide) coating for enhanced performance, superior heat absorption, and reduced friction during operation.

Key Features:

  • Standard bore size: 3.187 inches
  • Forged piston construction for maximum strength and durability
  • MOS2 coating provides high-performance lubrication and heat resistance
  • Precision-manufactured to meet OEM specifications
  • Complete piston kit with rings, wrist pin, and circlips

OEM Cross-Reference Numbers:

  • 0394461
  • 0433945
  • 0435547
  • 0436976
  • 0437409
  • 0437411
  • 5006694
  • 5006701

This piston kit is manufactured using industry-leading materials and up-to-date equipment to ensure reliable performance and long service life. Ideal for engine rebuilds and performance restorations on Johnson and Evinrude 50-70 HP looper motors from 1987-2001.

good!

first time useing the site

Easy and fast thanks

Was fast and easy.. you need to offer the 20% discount at time of order when asking for shipping charges

easy

Fairly simple. Reasonable pricing. I'll know more when my order arrives.

Web Site easy to understand! Fast shipping and parts arrived on time or ahead of what was promised.

Technical information was available that was needed to make purchase. Good price, parts in stock. Website easy to use.

Lightning fast service! Good prices.

After weeks of shopping around, I was able to find the best price from Autoplicity. The ordering process was very simple since I had the option to pay through my Amazon account. Great experience.

great , but I dsid not receve 20 percent discount on shipping

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