2Bros Parts

KTM SX 50 2001-2008 GRADE A/B 39.46mm

£72.82

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Free UK delivery 2–4 business days

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Vertex pistons are manufactured using Low-Ex Silicon aluminium alloys with 12%, 18%, or 21% silicon content depending on the application. They are produced using gravity casting or hydraulic forging, followed by a high-tech heat treatment process with solubilization by quench in hot water. Machining is performed using advanced CNC machines and diamond tools to achieve specific surface finishes. Each Vertex piston undergoes rigorous manual and automatic quality control. The pistons are coated with a special Molybdenum Bisulphite black coating to aid break-in and reduce friction. Additionally, Vertex offers a new Phosphate Coating with increased hardness and surface porosity for superior adhesion and durability of the Molybdenum Coating. Piston diameter is 39.46mm.

Specifications
SKU
V.2813A/B
Brand
Vertex
Availability
In Stock (5)
SKU
V.2813A/B
Brand
Vertex
Availability
In Stock (5)
Delivery2–4 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex High Performance 39.46mm Replacement Piston

Upgrade your engine reliability with this premium Vertex replacement piston. Engineered for precision and longevity, Vertex pistons are trusted by riders looking to restore factory performance or optimize engine health. Every component is crafted using high-grade, low-expansion aluminum alloys that provide superior thermal stability and durability under demanding racing and riding conditions.

Key Features

  • Advanced Alloy Composition: Manufactured using exotic Low-Ex silicon-charged aluminum to ensure minimal thermal expansion and maximum structural integrity.
  • Precision Manufacturing: Created through advanced gravity casting or hydraulic forging processes, refined by state-of-the-art heat treatment in automated implants.
  • CNC Machined: Finished using cutting-edge CNC technology and diamond-tipped tooling to achieve the exact surface finish required for optimal performance.
  • Enhanced Durability: Features an all-over phosphate coating that increases surface hardness and provides a superior base for the Molybdenum Bisulphite friction-reducing coating.
  • Reduced Friction: The specialized Molybdenum Bisulphite black coating assists with the break-in process and significantly reduces internal cylinder friction.
  • Quality Assurance: Every piston undergoes a rigorous manual and automatic quality control inspection to ensure it meets the highest industry standards.

This 39.46mm piston is designed to provide a perfect balance of strength and lightweight efficiency. Whether you are performing a routine top-end rebuild or a full engine restoration, Vertex components offer the consistency and wear resistance required for high-output engine operation.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00.

Call or email us with your make, model and year and we will check it for you before you order.

UK delivery is £4.99, or free on orders over £60. Orders ship within 3 working days, then delivery takes 2–4 business days. 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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