WISECO ORWI-CO417079-ON Piston Bike 48MM

( Brand: Wiseco ), ( Manufacturer Part Number: ORWI-CO417079-ON ), ( Part Type: Piston )

Review WISECO Yamaha Dirt Bike Piston 48mm fits GT1 1973–1975

Introducing the WiseCo ORWI-CO417079-ON 48mm aftermarket piston, specifically designed for Yamaha GT1 motorcycles manufactured between 1973 and 1975. This high-quality piston is engineered to deliver exceptional power and reliability, making it an ideal upgrade for your classic bike.

The WiseCo piston is constructed from forged aluminum alloy, ensuring superior strength and durability. It features a compression height of 31.4mm and a total height of 55.5mm, enabling optimal combustion and power output. The piston crown is designed with a dish shape to improve engine efficiency, while the piston ring grooves are optimally positioned for improved seal and reduced blow-by.

The piston skirt is designed with a generous crown radius for reduced friction and improved ring sealing. Additionally, the piston has a narrow wrist pin diameter, which reduces weight and improves engine response. The pin is held in place by a high-tensile, low-friction, and durable wrist pin retainer.

The WiseCo piston comes with a precision-machined piston pin, which is held in place by a lightweight, forged steel connecting rod. The rod is designed to ensure proper piston-to-crankshaft clearance, resulting in smooth and efficient power transfer.

The piston also comes with a new piston ring set, consisting of a compression ring, a transfer ring, and an oil control ring. These rings are made from high-quality materials and are precision-machined to ensure proper fit and seal, resulting in improved combustion efficiency and reduced engine wear.

In conclusion, the WiseCo ORWI-CO417079-ON 48mm aftermarket piston is an excellent upgrade for your 1973-1975 Yamaha GT1 motorcycle. Its forged aluminum alloy construction, optimized design features, and high-quality piston rings make it a reliable and powerful addition to your engine. With improved combustion efficiency, reduced engine wear, and smooth power transfer, this piston is sure to enhance the performance and enjoyment of your classic bike.

Wiseco WI-CO417079-ON 1973-1975 Yamaha GT1 Piston: A Comprehensive Analysis

The Wiseco WI-CO417079-ON piston is a popular aftermarket option for those seeking high-performance upgrades for their 1973-1975 Yamaha GT1 motorcycle. In this analysis, we will discuss the key advantages and potential drawbacks of choosing this piston, followed by a conclusion and recommendation.

1. Enhanced Power: The Wiseco piston is designed to deliver increased power output by optimizing the combustion process and reducing engine friction. This results in improved acceleration and overall performance.

2. Durability: The piston is manufactured using high-quality materials, including forged aluminum alloy. This enhances its durability, allowing it to withstand the rigors of high-performance riding and extended use.

3. Improved Engine Response: The Wiseco piston features a lighter weight than the stock piston, which can lead to improved engine response and quicker revving. This results in a more enjoyable riding experience.

4. Precision Manufacturing: The piston is manufactured using state-of-the-art technology and equipment to ensure a precise fit and accurate dimensions. This ensures optimal engine performance and eliminates the potential for costly misfits or clearance issues.

1. Cost: The Wiseco piston is more expensive than the stock piston. This may be a barrier for some riders, particularly those on a tight budget.

2. Installation Complexity: Installing the Wiseco piston may require additional labor and expertise compared to a stock piston. This could result in additional costs for professional installation or the need for the rider to acquire the necessary skills and tools.

3. Potential Compatibility Issues: While the Wiseco piston is designed to fit the 1973-1975 Yamaha GT1 engine, there may be some compatibility issues with certain components or modifications. It is essential to verify the piston's compatibility before making a purchase to avoid potential issues.

The Wiseco WI-CO417079-ON piston offers several advantages for those seeking improved power, durability, and engine response on their 1973-1975 Yamaha GT1 motorcycle. However, it comes with a higher cost and potential installation complexity. The decision to purchase this piston ultimately depends on the rider's budget, technical expertise, and desired performance gains.

If the rider is serious about enhancing the performance of their 1973-1975 Yamaha GT1 motorcycle and has the necessary budget and technical expertise, the Wiseco WI-CO417079-ON piston is an excellent choice. It offers significant power gains, increased durability, and improved engine response. However, for those on a tight budget or without the necessary expertise, a stock or entry-level aftermarket piston may be a more suitable option.

Details:

This is helpful if you are buying multiple items. I need to exchange an item. Credit or Debit Card. 1973-1975 Yamaha GT1 Dirt Bike Wiseco Piston 48mm: Compatibility: GT1, Size: 48mm.

Parts without fitment are to be assumed universal and may require vehicle modification.: Brand: Wiseco, model Number: ORWI-CO417079-ON.

part #: orwico417079 price

• $134.05

specifications pistondon:

• for models: Gt1
• for makes: Yamaha
• for years: 1973-1975
• brand: Wiseco
• mpn: Orwi-co417079-on
• part type: Piston

seller pistondon:

• rating: 99.9%
• # reviews: 85256
• city: Sparks, NV

offer pistondon:

• sold: 0
• availability: In Stock
• started: May 14, 2026
• options: Ship-to-home
• quantity: 2

returns pistondon:

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

general pistondon:

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

payments pistondon:

• credit card: Discover
• wallet: Apple-pay
• other

shipping pistondon:

• service: Standard
• transit: 2-6 Days
• cost: $0.00
• class: Standard
• type: Fixed

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