2Bros Parts

YAMAHA YZF / WRF 250 2001-2004 GRADE B 76.96mm STD COMPRESSION 12.5:1

$305.63

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Delivery to United States 5–8 business days

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Vertex 23394B four-stroke piston. Forged from 2618 aluminum alloy. Features a Molybdenum Disulphide (MOS2) coating on the piston skirt for break-in and reduced wear. Grade B size. Standard compression ratio of 12.5:1. Piston diameter is 76.96mm.

Specifications
SKU
V.2805B
Brand
Vertex
Availability
In Stock (2)
SKU
V.2805B
Brand
Vertex
Availability
In Stock (2)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex Four-Stroke Performance Piston - Grade B

Upgrade your engine reliability and power output with the Vertex Four-Stroke Piston. Engineered for riders who demand consistency and durability, this high-performance piston is forged from premium 2618 aluminum alloy. This advanced material composition provides the strength necessary to withstand the intense thermal and mechanical pressures found in modern four-stroke engines.

Key Features

  • Precision Engineering: Manufactured with specific piston profiles and exact sizing to ensure a perfect fit within your cylinder. This precision reduces blow-by and oil consumption while maximizing overall engine efficiency.
  • Molybdenum Disulphide (MOS2) Coating: Each piston features a specialized MOS2 skirt coating. This treatment is designed to assist in the initial break-in process and significantly reduce friction, leading to decreased wear and an extended service life.
  • Optimized Compression: Designed with a 12.5:1 compression ratio, this piston helps maintain the power characteristics required for high-performance riding.
  • Grade B Sizing: This Grade B piston is measured at 76.96mm, providing the exact tolerance needed for precise engine rebuilding.

By choosing Vertex, you are selecting a piston designed to maintain peak performance throughout the engine service interval. Whether you are replacing a worn component or performing a full engine refresh, Vertex provides the quality and engineering excellence required for demanding riding conditions.

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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