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  3. YAMAHA 25Y-11636-00-00

YAMAHA 25Y-11636-00-00 Piston Nos 20/S .50

fits make: Yamaha.

25y-11636-00-00 Yamaha Oem 20/s .50 Piston Nos

( Manufacturer Part Number: 25Y-11636-00-00 ), ( Part Type: Piston )

Review YAMAHA Oem 20/s .50 Piston Nos

The Yamaha 25Y-11636-00-00 20/S 50 Piston No. is a high-performance replacement piston kit designed for use in Yamaha outboard marine engines. This piston kit is specifically engineered for the 20 and 40 HP 25 series outboard engines, providing optimal power and efficiency for your watercraft.

Each piston in this kit is precision-machined from a forged aluminum alloy for superior strength and durability. The piston skirt is designed with a compression ring groove that ensures proper ring sealing, while the piston crown is optimized for maximum combustion efficiency. The piston pin is made from high-strength steel and is held in place by a nut and washer for added security.

This piston kit is also designed with a 50mm bore size, making it an ideal replacement for worn-out or damaged pistons in your Yamaha outboard engine. Each piston is carefully packaged and inspected to ensure the highest quality and fitment.

By using this replacement piston kit from Yamaha, you can restore power and performance to your outboard engine and extend its lifespan. The kit includes all necessary components for installation, including new piston rings, piston pin, and piston pin retaining clips.

Whether you're an avid fisherman, a water sports enthusiast, or just enjoy a day on the water, the Yamaha 25Y-11636-00-00 20/S 50 Piston No. is an essential upgrade for your outboard engine. With its superior strength, durability, and performance, you can trust that this piston kit will help keep your watercraft running smoothly and efficiently for years to come.

Pros and Cons of Buying Yamaha 25Y-11636-00-00 20/S 50 Piston Nos

Introduction:

The Yamaha 25Y-11636-00-00 20/S 50 piston nos are a set of replacement pistons for Yamaha outboard engines. Here are some potential advantages and disadvantages of purchasing these pistons.

Pros:

1. High-quality materials: Yamaha is a reputable brand known for producing durable and high-performance engines. The pistons are likely to be made of top-quality materials, ensuring long-lasting use.

2. Improved engine performance: Replacing worn-out pistons with new ones can help restore engine power and efficiency, resulting in better overall performance.

3. Enhanced reliability: New pistons can help prevent engine damage caused by worn-out or failing pistons, reducing the risk of unexpected breakdowns and costly repairs.

Cons:

1. Cost: Replacing pistons can be a significant expense, especially for high-performance engines like those produced by Yamaha. The cost of the pistons alone may be a deterrent for some buyers.

2. Installation complexity: Installing new pistons requires specialized knowledge and tools. It may be necessary to hire a professional mechanic to perform the installation, adding to the overall cost.

3. Potential compatibility issues: It is essential to ensure that the pistons are compatible with the specific model and year of the Yamaha outboard engine. Failure to do so could result in poor performance or engine damage.

Conclusion:

In conclusion, purchasing Yamaha 25Y-11636-00-00 20/S 50 piston nos offers several advantages, including improved engine performance, enhanced reliability, and the assurance of high-quality materials from a reputable brand. However, there are also some potential disadvantages, such as the cost, installation complexity, and potential compatibility issues. Ultimately, the decision to buy these pistons depends on the specific needs and budget of the buyer.

Recommendation:

If you are experiencing engine performance issues or have been advised by a mechanic that your pistons need replacing, it may be worth considering the purchase of Yamaha 25Y-11636-00-00 20/S 50 piston nos. However, it is recommended that you verify compatibility with your specific engine model and year, and obtain a quote from a professional mechanic for installation costs to ensure a smooth and cost-effective process.

Details:

All parts are in stock and ready to ship. Items are shipped using USPS, UPS, and FedEx. 20/s .50 Piston is new and in excellent condition, original packaging. If the original package is included it may show signs of wear.

OEM Yamaha 25Y-11636-00-00 20/s .50 Piston NOS.

part #: 25y116360000 prices

  • $64.95-$110.49

specifications pistondon:

  • for makes: Yamaha
  • mpn: 25y-11636-00-00
  • part type: Piston

general pistondon:

  • condition: New
  • Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits

payments pistondon:

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  • credit card: Visa
  • wallet: Google-pay

seller pistondon:

  • # reviews: 129790
  • rating: 99.9%
  • city: Ashaway, Rhode Island

offer pistondon:

  • options: Ship-to-home
  • availability: In Stock
  • best offers: True
  • started: March 12, 2026
  • sold: 0
  • quantity: 1

returns pistondon:

  • time: 30 Days
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  • policy: Returns Accepted

shipping pistondon:

  • cost: $0.00
  • transit: 4-8 Days
  • type: Calculated
  • carrier: USPS, UPS
  • service: USPS Ground Advantage, USPS Priority Mail Flat Rate Envelope, UPS Next Day Air, UPS 2nd Day Air
  • class: Standard, Expedited, One-day
for makes: yamaha, part type: piston,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 11156060619104752,

Yamaha 25Y-11636-00-00 Is Similar To:

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3 offers $64.95–$110.49 USD
  • Offer #1: $110.49 price + $0.00 shipping estimate = $110.49* total. Item Overview. Included: 20/s.FREE SHIPPING
  • Offer #2: $64.95 price + $5.50 shipping estimate = $70.45* total. The part number was but was superseded to 38W-11630-21-00. This is a piston 2nd over size 0.50 MM.+$5.50 shipping
  • Offer #3: $91.39 price + $22.05 shipping estimate = $113.44* total.+$22.05 shipping

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