fits model: Yz426, Wr426f. make: Yamaha. year: 2001–2002.

( Manufacturer Part Number: 5JG-11311-00-00 ), ( Engine Type: 4-stroke ), ( Type: Cylinder ), ( Country/region Of Manufacture: Japan )
The Yamaha 5JG-11311-00-00 cylinder piston is a crucial component for the 2000-2002 model years of the YZ426 and WR426F motorcycles produced by Yamaha. This piston is designed to provide optimal performance and durability, ensuring a smooth and powerful ride for its users.
The piston is made from high-quality forged aluminum alloy, which is known for its strength and lightweight properties. This material allows for a balanced piston weight, reducing engine stress and promoting better fuel efficiency. The piston's design includes a compression ratio of 12.5:1, providing ample power and torque output.
The piston crown features a high-profile shape with a honed bore, enabling efficient combustion and maximizing power delivery. The skirt of the piston is accurately machined to ensure a perfect fit within the cylinder bore, reducing friction and promoting superior engine efficiency.
The piston ring set includes a compression ring, oil control ring, and two oil scraper rings. These rings are made from durable and heat-resistant materials, maintaining proper seal and preventing oil leakage. The grooves on the piston rings are precision-cut to ensure proper ring gap and ensure optimal performance.
The piston pin is made from high-strength steel and is chrome-plated for added durability and corrosion resistance. The piston pin retaining rings are also made from high-quality steel, ensuring a secure and reliable fit.
In summary, the Yamaha 5JG-11311-00-00 cylinder piston is an essential replacement part for the YZ426 and WR426F motorcycles produced in 2000-2002. Its high-quality materials and precision engineering ensure reliable performance, durability, and power delivery, making it an ideal choice for riders seeking to maintain their motorcycle's performance and longevity.
Pros of buying Yamaha YZ426/WR426F 2001-2002 cylinder piston:1. High-quality material: Yamaha is known for its durable and high-quality parts, so you can expect this piston to last a long time.
2. Compatibility: This piston is specifically designed for the Yamaha YZ426 and WR426F models from 2001 to 2002, ensuring a perfect fit.
3. Performance: A new piston can improve engine performance, resulting in better acceleration and overall power.
Cons of buying Yamaha YZ426/WR426F 2001-2002 cylinder piston:1. Cost: Replacing a piston can be expensive, especially if you're doing it yourself.
2. Time-consuming: Installing a new piston can be a complicated process, requiring specific tools and a good understanding of engine mechanics.
3. Potential for damage: If not installed correctly, the new piston could cause further damage to the engine.
Conclusion:While the Yamaha YZ426/WR426F 2001-2002 cylinder piston offers improved performance and durability, its high cost and potential for damage during installation make it a consideration that should not be taken lightly. If you have the necessary tools and knowledge, or if you're willing to pay for professional installation, then this piston could be a great investment for your Yamaha bike.
Recommendation:If you're unsure about installing the piston yourself, it would be a good idea to take your bike to a professional mechanic for installation. This can help ensure that the piston is installed correctly and avoid any potential damage to your engine. Additionally, make sure to choose a reputable parts supplier to ensure that you're getting a high-quality piston that will last.
Feel free to message me with any questions or for more pictures. Fitment is only guaranteed for stock bikes the year listed above. Shipping Information, The shipping price listed is valid for the lower 48 states only however I can ship parts worldwide. This is a used part, it will have scratches, minor dents, dirt, etc.
The actual parts are pictured, what you see is get.