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Water Sports 010-834K WSM Piston Kit for Polaris 780 Standard Bore 71.30mm

Manufacturer

Water Sports

<h3>About Water Sports, LLC &amp; Stream Machine</h3><p>Water Sports, LLC has been a fixture in outdoor recreation since <strong>1991</strong>, when the company introduced the original Stream Machine water launcher — a simple, pump-action water blaster that became a summertime staple for kids and adults alike. More than three decades later, the brand continues to deliver innovative, durable, and genuinely fun products for pools, beaches, lakes, backyards, and beyond.</p><p>Operating under the <strong>Stream Machine</strong> banner, Water Sports, LLC has grown its lineup well beyond its iconic water launchers. Today the catalog spans water blasters in multiple sizes and power levels, sand toys, inflatable pool toys, balloon launchers, geyser toys, and a full range of portable backyard games — everything a family needs to make the most of warm-weather days. The company is headquartered in North Aurora, Illinois, and remains committed to producing products that are accessible, easy to use, and built to withstand seasons of outdoor play.</p><h3>Stream Machine Water Launchers</h3><p>The core of the Water Sports, LLC lineup is its legendary Stream Machine water blaster series. Models like the <strong>TL-500, TL-600, and TL-750</strong> are engineered with a straightforward hydrobolic pump-action mechanism — submerge the barrel, pull back the handle to load, and push forward to fire a powerful stream of water. The TL-750, one of the brand&apos;s most popular models, measures 22 inches in length and is capable of shooting a steady stream up to 70 feet, making it a go-to choice for competitive backyard water battles. All Stream Machine launchers are injection-molded from high-quality, fade-resistant polymers designed to hold up through years of heavy outdoor use.</p><h3>A Full Lineup for Outdoor Fun</h3><p>Beyond water guns, Water Sports, LLC produces a diverse range of products suited for every type of outdoor gathering. Their <strong>Instant Fun Sports</strong> line features portable backyard games designed for quick setup, including variations on ring toss, corn hole-style games like Bulzibucket, bocce ball sets, and flying discs. The brand has also partnered with Diggin Active to expand its offering of year-round, active play products for children and families.</p><p>For beach and pool days, the Water Sports catalog includes sand toys, reusable water balloons, balloon launchers, geyser toys, and inflatable accessories — making it a one-stop source for outdoor water recreation. Whether you&apos;re heading to the lake, setting up at the neighborhood pool, or just looking for ways to keep the family entertained in the backyard, Water Sports, LLC has a product designed for the occasion.</p><h3>Built for Every Age, Every Occasion</h3><p>One of the defining characteristics of the Stream Machine brand is its broad age appeal. Smaller models like the TL-500 are sized appropriately for younger children, while larger models like the QF-2000 — the biggest launcher in the lineup at nearly 30 inches — deliver the kind of range and power that older kids and adults demand. With no batteries required and a fast 2-to-3-second reload time, Stream Machine launchers keep the action going without interruption. Explore the full Water Sports, LLC catalog and find the right product for your next outdoor adventure.</p>

Part Number

010-834K
06/25/2036 7:14 AM
Sale Price

$74.62

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Usually delivered within 2 days

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Product Details

The Water Sports 010-834K is a standard bore individual piston kit designed for Polaris 780cc personal watercraft engines. This OEM-quality replacement kit features a 71.30mm standard bore size and replaces Polaris OEM part number 3240260.

Key Specifications:

  • Piston bore size: 71.30mm (standard bore)
  • Displacement: 780cc
  • Replaces OEM part number 3240260
  • Sold as individual piston kit (3 required per complete motor)
  • Made to exact OEM specifications for proper fit and performance

Kit Includes:

  • One piston
  • Piston rings
  • Wrist pin
  • Circlips

This standard bore piston kit is a direct replacement that requires no cylinder boring—only a light hone to break the glaze for proper ring seating. The piston is manufactured from high-quality materials designed to meet factory specifications for reliable performance and long service life. WSM offers this kit as a cost-effective alternative to OEM parts while maintaining the same quality standards.

Note: Three piston kits are required to rebuild one complete three-cylinder Polaris 780 motor. If cylinders show damage or excessive wear beyond factory specifications, boring to an oversize dimension may be necessary.

Great price, and the site was easy to navigate.

Excellent prices and great service.

Connection with Amazon is great

Cheaper than many other companies. Great service and quick and simple checkout

A

Was the most resonable price I've seen I drive a 350z and nothing is usually cheap or even decent but this was defiantly worth my buck

It is ok... We'll see how the processing and shipment go -

Great

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