WISECO 477M04850 Piston Nos 1.5MM 48.5MM

( Brand: Wiseco ), ( Manufacturer Part Number: 477M04850 ), ( Bore Size: 48.5mm ), ( Type: Piston ), ( Oversize: 1.5mm ), ( Piston Ring Part : 1909cd ), ( Wrist Pin Part : Cw12 )

Review WISECO Yamaha Piston 1.5mm 48.5mm Bore Nos fits YZ80 1982–1983

Introducing the WISCO 477M04850 piston, an excellent replacement option for the Yamaha YZ80 motorcycles manufactured between the years 1982 and 1983. This piston, specifically designed for 1.5mm and 48.5mm bore sizes, is a perfect fit for those in need of a reliable upgrade or restoration piece for their classic two-wheeler.

The WISCO 477M04850 piston is meticulously engineered using high-quality materials to ensure durability and performance. Each piston undergoes a rigorous manufacturing process, ensuring a precise fit and finish. The piston crown is designed to provide optimal combustion efficiency, while the skirt is engineered for maximum strength to withstand the rigors of racing or everyday riding.

The piston ring grooves are accurately machined to accommodate the appropriate piston rings, ensuring a proper seal between the piston and cylinder wall. The piston pin bore is precisely machined to accommodate the piston pin and nut, providing a secure connection and minimizing the risk of piston damage during operation.

The WISCO 477M04850 piston is an excellent choice for those seeking to restore their vintage Yamaha YZ80 to its former glory or for those who simply require a high-performance replacement part. With its precise fit, superior quality, and attention to detail, this piston is sure to provide reliable and consistent performance on the track or the trail.

In summary, the WISCO 477M04850 piston is an ideal replacement option for the Yamaha YZ80 motorcycles from the years 1982 to 1983. It is meticulously engineered using high-quality materials, ensuring durability and performance, and is precisely machined to provide a perfect fit. Whether you're a vintage motorcycle enthusiast or a racer seeking high-performance parts, the WISCO 477M04850 piston is an excellent investment for your Yamaha YZ80.

Pros and Cons of Buying Wiseco 477M04850 Yamaha YZ80 Piston (1.5mm, 48.5mm, NOS)

The Wiseco 477M04850 piston is a popular aftermarket option for the Yamaha YZ80 motorcycle model years 1982 and 1983. This piston comes with a 1.5mm overbore and a 48.5mm bore size. In this article, we will discuss the advantages and disadvantages of purchasing this Wiseco piston.

1. Improved Performance: The Wiseco piston is designed to deliver increased power and torque, making it an excellent choice for racers and enthusiasts seeking better engine performance.

2. Enhanced Durability: Wiseco pistons are known for their high-quality material and manufacturing processes. This piston is no exception and can withstand the rigors of high-performance riding.

3. Increased Compression Ratio: The 1.5mm overbore results in an increased compression ratio, which can lead to more efficient combustion and better engine response.

4. Improved Ring Sealing: The piston ring grooves on the Wiseco piston are precision machined, ensuring excellent ring sealing and reducing the likelihood of oil consumption.

1. Cost: Aftermarket pistons, especially those from reputable manufacturers like Wiseco, can be quite expensive. This piston may not be an affordable option for all Yamaha YZ80 owners.

2. Installation Complexity: Installing a new piston can be a challenging process, especially for those without extensive mechanical knowledge. The process may require specialized tools and a significant investment of time.

3. Potential Clearance Issues: Depending on the engine condition, there may be clearance issues between the new piston and other engine components, such as the crankshaft or cylinder walls. These issues might require additional modifications or engine rebuilds.

The Wiseco 477M04850 Yamaha YZ80 piston (1.5mm, 48.5mm, NOS) offers several advantages, including improved performance, enhanced durability, increased compression ratio, and better ring sealing. However, it also comes with drawbacks such as cost, installation complexity, and potential clearance issues. If you are a serious racer or enthusiast seeking maximum engine performance and are willing to invest time, money, and effort, this piston might be an excellent choice for you. For casual riders or those on a tight budget, it may be more prudent to consider other options.

Before making a decision to purchase the Wiseco 477M04850 piston, carefully evaluate your riding goals, budget, and mechanical abilities. If you are confident that this piston aligns with your needs and you are prepared for the associated costs and challenges, then it could be a worthwhile investment. Alternatively, you may want to consider other aftermarket piston options or even stock pistons, depending on your priorities and circumstances.

Details:

Piston only, no rings.

part #: 477m04850 prices

• $117.60-$137.99

specifications pistondon:

• for models: Yz80
• for makes: Yamaha
• for years: 1982-1983
• brand: Wiseco
• mpn: 477m04850
• bore size: 48.5mm
• type: Piston
• oversize: 1.5mm
• piston ring part : 1909cd
• wrist pin part : Cw12

seller pistondon:

• # reviews: 3541
• city: Fincastle, Virginia
• rating: 100.0%

payments pistondon:

• credit card: Diners-club
• wallet: Paypal
• other

shipping pistondon:

• class: Standard
• type: Calculated
• service: USPS Ground Advantage
• transit: 6-12 Days
• cost: $0.00
• carrier: USPS

general pistondon:

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

offer pistondon:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• started: February 13, 2026
• sold: 0
• best offers: True

returns pistondon:

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

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