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  3. YAMAHA 5X4-11630-30

YAMAHA 5X4-11630-30 Piston Kit 3RD

fits model: Yz125j. make: Yamaha. year: 1982.

5x4-11630-30 Yamaha 1982 Yz125j Oem 3rd Oversize Piston Kit

( Manufacturer Part Number: 5X4-11630-30 ), ( Part Type: Piston ), ( Country Of Origin: United States ), ( Manufacturer Warranty: Unspecified Length ), ( Storage Location: K6 Mot-n Buk 22 )

Review YAMAHA Oem 3rd Oversize Piston Kit fits YZ125J 1982

Yamaha YZ125J 1982 3rd Piston Kit (5X4-11630-30)

The Yamaha YZ125J 3rd Piston Kit, model number 5X4-11630-30, is a genuine OEM replacement part designed specifically for the 1982 Yamaha YZ125J motorcycle. This piston kit includes all the necessary components to overhaul the engine's top end, ensuring optimal performance and longevity.

The piston kit consists of three critical components: the piston, piston pin, and piston ring set. The piston is a forged aluminum alloy piece that features a compact, high-compression design. Its unique shape and material provide excellent strength and durability, enabling the engine to deliver maximum power and torque.

The piston pin is a precision-machined steel component that securely connects the piston to the crankshaft. Its high-tensile strength guarantees resistance to bending and ensures a snug fit within the piston.

The piston ring set includes three compression rings and one oil control ring. These rings are designed to maintain a proper seal between the piston and the cylinder wall, ensuring efficient combustion and oil containment. Their precise design and high-quality materials ensure a long-lasting, leak-free seal.

This piston kit is an essential upgrade for any YZ125J enthusiast looking to restore their classic motorcycle to its original glory. With its OEM quality and proven performance, this piston kit is the perfect choice for those seeking reliable, high-performance components for their beloved Yamaha.

By installing this piston kit, motorcycle owners can expect their YZ125J to run smoother, more efficiently, and with increased power output. The peace of mind that comes with using genuine OEM parts is an added bonus, ensuring a trouble-free ownership experience.

In summary, the Yamaha YZ125J 1982 3rd Piston Kit (5X4-11630-30) is an essential upgrade for any YZ125J owner looking to restore their classic motorcycle to its original condition. With its high-quality, OEM components, this piston kit promises optimal performance, increased power output, and long-lasting reliability.

Pros and Cons of Buying a Yamaha YZ125J 3rd Piston Kit (Model No: 5x4-11630-30)

I. Introduction

The Yamaha YZ125J 3rd piston kit (Model No: 5x4-11630-30) is an aftermarket part designed to replace the worn-out piston in your Yamaha YZ125J motorcycle engine. In this article, we'll discuss the potential advantages and disadvantages of investing in this piston kit.

II. Pros

1. Improved engine performance: A new piston will help restore the engine's power and efficiency, resulting in a more responsive and smoother riding experience.

2. Increased durability: A high-quality aftermarket piston kit can last longer than the original OEM piston, reducing the frequency of piston replacements and saving you money in the long run.

3. Enhanced reliability: A new piston can help prevent engine damage caused by a worn-out or failing piston, potentially saving you from expensive engine repairs or replacements.

4. Customization: Aftermarket piston kits often offer various performance options, allowing riders to tailor their engine to their riding style or specific track conditions.

III. Cons

1. Cost: Aftermarket piston kits can be more expensive than OEM parts, which may deter some riders from making the investment.

2. Installation complexity: Installing a piston kit requires disassembling the engine, which can be a time-consuming and labor-intensive process.

3. Risk of damage during installation: Improper installation of a piston kit can result in engine damage, potentially outweighing the benefits of the new piston.

4. Potential compatibility issues: Ensure the aftermarket piston kit is compatible with your specific motorcycle model and engine configuration to avoid any potential issues.

IV. Conclusion

In conclusion, a Yamaha YZ125J 3rd piston kit (Model No: 5x4-11630-30) can offer significant performance improvements, increased durability, and enhanced reliability. However, the investment comes with a higher cost, installation complexity, and potential compatibility concerns. If you value performance and are willing to invest the time and resources, an aftermarket piston kit can be a worthwhile upgrade for your Yamaha YZ125J motorcycle.

V. Recommendation

If you decide to purchase a Yamaha YZ125J 3rd piston kit (Model No: 5x4-11630-30), make sure to buy from a reputable aftermarket parts supplier with a proven track record for quality and compatibility. Additionally, ensure that you have the necessary tools and knowledge to install the kit properly or seek professional assistance to minimize the risk of damage during installation.

Details:

Fits: This 3rd oversize piston kit is specifically for the 1982 Yamaha YZ125J model. Ensures factory-spec performance and durability. Spotlight: A Day Inside . The image to watch on YouTube.

A genuine Yamaha OEM 3rd oversize piston kit for the 1982 YZ125J, perfect engine rebuilds requiring a larger bore.

part #: 5x41163030 prices

  • $84.98-$139.00

specifications pistondon:

  • for models: Yz125j
  • for makes: Yamaha
  • for years: 1982
  • mpn: 5x4-11630-30
  • part type: Piston
  • country of origin: United States
  • manufacturer warranty: Unspecified Length
  • storage location: K6 Mot-n Buk 22

returns pistondon:

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

general pistondon:

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

shipping pistondon:

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  • type: Fixed
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  • transit: 3-6 Days

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offer pistondon:

  • options: Ship-to-home
  • started: January 25, 2026
  • availability: In Stock
  • sold: 0
  • quantity: 1

seller pistondon:

  • # reviews: 206952
  • rating: 99.3%
  • city: Odessa, Florida
for models: yz125j, for makes: yamaha, for years: 1982, part type: piston, country of origin: united states, manufacturer warranty: unspecified length, storage location: k6 mot-n buk 22,
category: motorcycle parts > motorcycle scooter parts accessories > engines engine parts > pistons, rings piston kits, sku: 10185112171901861,

Yamaha 5X4-11630-30 Is Similar To:

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4 offers $84.98–$139.00 USD
  • Offer #1: $84.98 price + $0.00 shipping estimate = $84.98* total. Fits: This 3rd oversize piston kit is specifically for the 1982 Yamaha YZ125J model. A genuine Yamaha OEM 3rd oversize piston kit for the 1982 YZ125J, perfect for engine rebuilds requiring a larger bore.FREE SHIPPING
  • Offer #2: $139.00 price + $11.35 shipping estimate = $150.35* total. YAMAHA PART # -00 NOS YAMAHA PISTON KIT.+$11.35 shipping
  • Offer #3: $99.99 price + $6.99 shipping estimate = $106.98* total. Location: LG9-15S. For your consideration is a NOS Yamaha Piston Kit 3RD 1982 YZ125J.+$6.99 shipping
  • Offer #4: $39.99 price + $6.00 shipping estimate = $45.99* total. Made in Japan.The part Number for the kit is.+$6.00 shipping

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