2Bros Parts

YAMAHA YZF 250 2016-2018 GRADE A 76.95mm STANDARD COMPRESSION 13.5:1

$179.67

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Delivery to United States 5–8 business days

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Vertex pistons are forged from 2618 aluminum alloy, suitable for modern four-stroke engines. They feature a Molybdenum Disulphide (MOS2) coating on the piston skirt for break-in and wear reduction. Vertex offers unique piston profiles and compression ratios in A, B, C, and D sizes with 0.01mm variations for precise cylinder fitment, maximizing performance and reducing blow-by and oil consumption. This is a Grade A piston with a 76.95mm bore and 13.5:1 compression ratio.

Specifications
SKU
V.4109A
Brand
Vertex
Availability
In Stock (3)
SKU
V.4109A
Brand
Vertex
Availability
In Stock (3)
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex High-Performance Four-Stroke Piston

Upgrade your engine reliability and performance with the Vertex Grade A four-stroke piston. Engineered for precision, this piston is designed to meet the demanding requirements of modern high-performance engines, ensuring optimal power delivery and long-term durability.

Advanced Material Construction

Vertex pistons are forged from premium 2618 aluminum alloy. This material choice is specifically engineered to withstand the extreme pressures and heat generated by high-output four-stroke engines. By utilizing this high-grade alloy, the piston maintains structural integrity even under intense racing conditions.

Features for Enhanced Longevity

  • Molybdenum Disulphide (MOS2) Coating: Every piston features a specialized MOS2 coating on the skirt. This advanced coating significantly reduces friction, assists in the engine break-in process, and minimizes wear on both the piston and the cylinder wall.
  • Precision Sizing: Vertex offers unique piston profiles and size variations, allowing for a near-perfect fit within your cylinder. This precise clearance is essential for maximizing compression, reducing oil consumption, and eliminating blow-by.
  • Optimized Compression: Designed with a 13.5:1 compression ratio, this piston helps restore or enhance the combustion efficiency of your engine, providing a responsive and powerful throttle feel.
  • 76.95mm Diameter: Engineered to exact specifications to ensure consistent performance throughout the entire power band.

Whether you are performing a routine engine rebuild or seeking to maintain peak competitive performance, the Vertex four-stroke piston offers the reliability and engineering excellence required to keep your machine running at its best.

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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