YAMAHA YZ 250 1999-2022 GRADE B 66.35mm TWIN RING PISTON
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Vertex pistons are manufactured using Low-Ex silicon aluminum alloys with 12%, 18%, or 21% silicon content depending on the application. They are made using gravity casting or hydraulic forging, followed by heat treatment in an automatic implant with solubilization by hot water quench. Machining is performed with the latest CNC machines, software, and diamond tools to achieve specific surface finishes. Each piston undergoes manual and automatic quality control. Vertex pistons feature a special Molybdenum Bisulphite black coating for break-in and friction reduction. A new phosphate coating, developed following Formula One engine advancements, offers increased hardness, light surface porosity, and superior adhesion and durability for the molybdenum coating. This piston has a 66.35mm bore diameter.
- SKU
- V.2584B
- Brand
- Vertex
- Availability
- In Stock (7)
- SKU
- V.2584B
- Brand
- Vertex
- Availability
- In Stock (7)
FULL DESCRIPTION
Premium Grade B Twin Ring Piston
Upgrade your engine performance with this high-quality Vertex Grade B twin ring piston. Engineered for precision and durability, this piston is designed to meet the rigorous demands of high-performance engines, ensuring optimal compression and efficient power delivery.
Advanced Materials and Manufacturing
Vertex pistons are crafted from specialized Low-Ex aluminium alloys, silicon-charged to provide excellent thermal stability and strength. The manufacturing process utilizes either gravity casting or hydraulic forging, followed by a state-of-the-art heat treatment process. This ensures a refined material structure capable of withstanding extreme operating temperatures and pressures.
Precision Engineering and Durability
Each piston is machined using advanced CNC technology and diamond tooling to achieve exact surface finishes tailored to your engine requirements. To further enhance performance and longevity, the piston features a Molybdenum Bisulphite black coating, which reduces friction during the break-in period and throughout operation. The addition of a phosphate coating provides increased surface hardness and superior adhesion for the Molybdenum layer, significantly extending the durability of the coating.
Key Features
- High-Performance Alloy: Constructed from Low-Ex aluminium with high silicon content for maximum expansion control.
- Twin Ring Design: Engineered to provide an excellent seal for consistent compression and performance.
- Reduced Friction: Molybdenum Bisulphite coating minimizes internal wear and eases the break-in process.
- Phosphate Treated: Enhanced coating adhesion and surface hardness for long-lasting reliability.
- Rigorous Quality Control: Every unit undergoes strict manual and automatic inspection processes to ensure peak quality standards.
- Precision Machined: Utilizes CNC technology and diamond-tipped tooling for an exacting fit.
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Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details
Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy
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