2Bros Parts

PISTON KIT VERTEX 77.0 C YAMAHA YZ/WR 250 14-17, VERTEX 23941C COMPR 13,5:1

$226.40

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Delivery to United States 5–8 business days

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VERTEX UK PISTON KIT 23941C. Bore size 77.00mm [C 76.97 mm]. Compression ratio 13.5:1. Kits include piston, rings, wrist pin, and circlips. All pistons are heat treated with a T-5 or T-6 hardening and tempering cycle. Replacement rings are sold individually. Made in Italy. Replacement parts: Rings 590277000006, Pin 715380, Clips 72055. Cross reference numbers: Piston Assy 1SM-116A0-01-00, Piston (Std) 1SM-11631-01-00, Piston Ring Set (Std) 1SM-11603-00-00, Pin, Piston 1SM-11633-00-00, Circlip 93450-17129-00.

Specifications
SKU
23941C
Brand
Vertex
Availability
In Stock (2)

Fitments (5)

MakeModelYear
YAMAHAWR 250F2015
YAMAHAWR 250F2016
YAMAHAWR 250F2017
YAMAHAYZ 250F2014
YAMAHAYZ 250F2015
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
77mm
Variant Id
282681
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex Piston Kit - 77.00mm Bore, 13.5:1 Compression

Upgrade your motorcycle's performance with this high-quality Vertex Piston Kit. Engineered for precision and durability, this kit offers a significant compression increase for enhanced power output.

Key Features:

  • OEM Replacement Quality: Standard pistons and components designed to meet original equipment specifications.
  • Complete Kit: Includes piston, rings, wrist pin, and circlips for a full replacement.
  • Advanced Heat Treatment: All pistons undergo a T-5 or T-6 hardening and tempering cycle for superior strength and longevity.
  • Italian Craftsmanship: Proudly made in Italy, ensuring exceptional quality and manufacturing standards.
  • High Compression Ratio: Features a 13.5:1 compression ratio for increased engine performance.
  • Exact Bore Size: Precisely manufactured to a 77.00mm bore size (Piston C 76.97 mm).
  • Fitted as Standard: Used as original equipment on many motorcycles.

Specifications:

  • Bore Size: 77.00mm
  • Compression Ratio: 13.5:1

Replacement Parts Available:

  • Rings (Part Number: 590277000006)
  • Pin (Part Number: 715380)
  • Clips (Part Number: 72055)
Before you buy

QUESTIONS? JUST ASK

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

Check the fitment table on this page against your make, model and year. Not sure? Call or email us 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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