2Bros Parts

KAWASAKI KX 250 1998-2001 GRADE D 66.38mm SINGLE RING RACE PISTON

$243.66Only 1 left

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Delivery to United States 5–8 business days

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Vertex pistons are manufactured using Low-Ex aluminium alloys with 12%, 18% or 21% silicon, depending on the application. Pistons are made using gravity cast or hydraulic forging processes, then refined through a high-tech heat treatment process. Machining is completed using the latest CNC machines and diamond tools to achieve specific surface finishes. Every Vertex piston undergoes rigorous quality control. Pistons are coated with a special Molybdenum Bisulphite black coating for break-in and friction reduction. Vertex also offers a Phosphate Coating for increased hardness and improved adhesion of the Molybdenum Coating, extending durability. This is a Grade D, 66.38mm single ring race piston.

Specifications
SKU
V.2579D
Brand
Vertex
Availability
In Stock (1)
SKU
V.2579D
Brand
Vertex
Availability
In Stock (1)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex Race Piston - Grade D 66.38mm Single Ring

Enhance the performance and reliability of your engine with this Vertex high-performance race piston. Engineered for precision and durability, this piston is manufactured using advanced metallurgical processes to meet the rigorous demands of competitive off-road racing.

Vertex utilizes exotic Low-Ex (low expansion) silicon-charged aluminum alloys to ensure optimal thermal stability. Whether through gravity casting or hydraulic forging, each piston undergoes a cutting-edge heat treatment process, including solubilization and hot water quenching, to refine the material structure for maximum strength.

Key Features

  • Precision Engineering: Machined using state-of-the-art CNC technology and diamond tooling for exact tolerances and superior surface finishes.
  • Advanced Coatings: Features a Molybdenum Bisulphite black coating to reduce friction and assist during the break-in process.
  • Enhanced Durability: Incorporates a phosphate coating that provides a slight hardness increase and improved surface porosity for superior adhesion of the Molybdenum coating.
  • Rigorous Quality Control: Every unit undergoes both manual and automatic inspection processes to ensure the highest manufacturing standards.
  • Race Ready: Designed specifically as a single ring race piston to minimize friction and maximize power output.

By integrating technologies derived from Formula One engine development, Vertex pistons provide extended durability and consistent performance. This 66.38mm Grade D piston is an essential upgrade for riders looking to maintain peak engine efficiency and responsive power delivery.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

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

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

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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