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  3. YAMAHA 2F3-11638-04

YAMAHA 2F3-11638-04 Nos Piston 2F3-11638-03 4TH O/s

fits model: Xs750. make: Yamaha.

2f3-11638-03 Yamaha 2f3-11638-04 New Nos Factory Part# Piston 4th O/s Xs750

( Manufacturer Part Number: 2F3-11638-04 ), ( Type: Piston ), ( Oe/oem Part Number: 2f3-11638-03, 2f3-11638-04 ), ( Country Of Origin: Japan )

Review YAMAHA New Nos Factory Part# Piston 4th O/s fits XS750

Yamaha XS750 2F3-11638-04 & 2F3-11638-03 Piston Set (4th Overhead, Left and Right)

Description:

The Yamaha XS750 motorcycle, introduced in 1979, was a high-performance machine renowned for its powerful engine and distinctive styling. If you're an XS750 enthusiast in need of a replacement for your worn-out pistons, look no further than the genuine Yamaha 2F3-11638-04 and 2F3-11638-03 piston set.

This piston set, designed specifically for the Yamaha XS750, includes two pistons: one for the fourth overhead left cylinder (part number 2F3-11638-03) and one for the fourth overhead right cylinder (part number 2F3-11638-04). Both pistons are manufactured to the highest standards of quality and precision, ensuring optimal engine performance and longevity.

The pistons are made from a high-strength forged aluminum alloy, which provides the necessary strength to withstand the extreme pressures and temperatures generated within the engine. The piston skirts are designed with an optimal balance of friction and clearance to ensure proper ring seal and minimize power loss.

Additionally, these pistons feature a precise piston-to-liner clearance, ensuring perfect fitment and proper engine operation. The piston rings are also included in the kit, ensuring a complete piston replacement solution.

By choosing the genuine Yamaha 2F3-11638-04 and 2F3-11638-03 piston set, you're not only ensuring a perfect fit and optimal performance for your XS750, but also investing in the peace of mind that comes with using OEM parts.

So, if you're looking to restore your XS750 to its former glory, or simply want to keep your bike running at its best, this piston set is an essential upgrade. Don't settle for anything less than genuine Yamaha parts order the 2F3-11638-04 and 2F3-11638-03 piston set today and keep your XS750 purring like a kitten.

The Yamaha XS750 is a classic motorcycle known for its powerful engine and distinctive design. If you are considering purchasing new pistons, specifically the 2F3-11638-04 (for the fourth oversized cylinder) and 2F3-11638-03 (for the third cylinder), here are some potential pros and cons to consider:

Pros:

1. Improved Performance: New pistons can help improve engine performance by ensuring a proper fit and reducing wear and tear.

2. Increased Durability: High-quality pistons can increase the lifespan of the engine, especially in high-performance applications.

3. Peace of Mind: Replacing worn or damaged pistons can provide peace of mind, knowing that the engine is running at its best and is less likely to fail.

Cons:

1. Cost: New pistons can be expensive, especially for high-performance motorcycles like the Yamaha XS750.

2. Installation Complexity: Installing new pistons can be a complex and time-consuming process, requiring specialized tools and knowledge.

3. Potential for Oversizing: While oversized pistons can offer performance benefits, they can also increase the risk of engine damage if not properly installed or if the engine is not designed for the oversize pistons.

Conclusion:

The decision to purchase new pistons for your Yamaha XS750 depends on your specific needs and budget. If you are experiencing engine issues or want to improve performance, new pistons may be a worthwhile investment. However, if cost is a concern or you are not comfortable with the installation process, you may want to consider other options. Ultimately, it is important to consult with a qualified mechanic or motorcycle expert to determine if new pistons are the best solution for your needs.

Recommendation:

If you do decide to purchase new pistons for your Yamaha XS750, be sure to work with a reputable dealer or supplier to ensure you are getting high-quality parts. It is also recommended to have the pistons installed by a qualified mechanic to ensure proper installation and prevent any potential issues. Additionally, consider exploring other options, such as engine rebuilding or upgrades, to determine if they may be more cost-effective or suitable for your needs.

Details:

XS750 1979 USA CANADA. Fits the following Yamaha model's C125: Other that this item fits. XS750 1978 USA CANADA.

part #: 2f31163804 price

  • $40.00

specifications pistondon:

  • for models: Xs750
  • for makes: Yamaha
  • mpn: 2f3-11638-04
  • type: Piston
  • oe/oem part number: 2f3-11638-03, 2f3-11638-04
  • country of origin: Japan

general pistondon:

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

returns pistondon:

  • paid by: Seller
  • time: 30 Days
  • policy: Returns Accepted

seller pistondon:

  • # reviews: 858
  • rating: 99.8%
  • city: Saugerties, New York

shipping pistondon:

  • class: Standard
  • cost: $5.25
  • carrier: USPS
  • transit: 4-9 Days
  • service: USPS Ground Advantage
  • type: Fixed

offer pistondon:

  • started: January 24, 2026
  • best offers: True
  • availability: In Stock
  • sold: 0
  • options: Ship-to-home
  • quantity: 3

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for models: xs750, for makes: yamaha, type: piston, oe/oem part number: 2f3-11638-03, 2f3-11638-04, country of origin: japan,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 10167468165404633,

Yamaha 2F3-11638-04 Is Similar To:

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1 offer $40.00 USD
  • Offer #1: $40.00 price + $5.97 shipping estimate = $45.97* total. XS750-227501 1978 USA. XS750 1978 USA CANADA.+$5.97 shipping

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