2Bros Parts

PISTON KIT 99-25 YZ250 66.40, WISECO 804M06640A PRO-LITE

$197.45Only 1 left

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Delivery to United States 5–8 business days

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Wiseco Pro-Lite Piston Kit 804M06640. This kit features an innovative forging design and piston skirt for maximum horsepower and torque. Lightweight wrist pins enable faster revs and quicker throttle response. Ceramic composite cylinder sleeving or replating is required for oversizes. Top-end bearings are available separately (part no. B1003). Included items: one 66.4mm piston, two 2614CD rings, two CW18 circlips, and one S508 wrist pin. Sold by application and bore size; standard and oversizes are not indicated. Please know your standard bore size to order the correct part.

Specifications
SKU
56-W742.A.WI
Brand
Wiseco
Availability
In Stock (1)

Fitments (51)

MakeModelYear
FANTICXX 2502022
FANTICXX 2502023
FANTICXX 2502024
FANTICXX 2502025
SUZUKIRM 2502003
SUZUKIRM 2502004
SUZUKIRM 2502005
SUZUKIRM 2502006
SUZUKIRM 2502007
SUZUKIRM 2502008
SUZUKIRM 2502009
SUZUKIRM 2502010
SUZUKIRM 2502011
SUZUKIRM 2502012
YAMAHAYZ 2501999
YAMAHAYZ 2502000
YAMAHAYZ 2502001
YAMAHAYZ 2502002
YAMAHAYZ 2502003
YAMAHAYZ 2502004
YAMAHAYZ 2502005
YAMAHAYZ 2502006
YAMAHAYZ 2502007
YAMAHAYZ 2502008
YAMAHAYZ 2502009
YAMAHAYZ 2502010
YAMAHAYZ 2502011
YAMAHAYZ 2502012
YAMAHAYZ 2502013
YAMAHAYZ 2502014
YAMAHAYZ 2502015
YAMAHAYZ 2502016
YAMAHAYZ 2502017
YAMAHAYZ 2502018
YAMAHAYZ 2502019
YAMAHAYZ 2502020
YAMAHAYZ 2502021
YAMAHAYZ 2502022
YAMAHAYZ 2502023
YAMAHAYZ 2502024
YAMAHAYZ 2502025
YAMAHAYZ 250X2016
YAMAHAYZ 250X2017
YAMAHAYZ 250X2018
YAMAHAYZ 250X2019
YAMAHAYZ 250X2020
YAMAHAYZ 250X2021
YAMAHAYZ 250X2022
YAMAHAYZ 250X2023
YAMAHAYZ 250X2024
YAMAHAYZ 250X2025
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
66.40mm
Variant Id
299585
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wiseco Pro-Lite Piston Assembly - 804M06640

Experience enhanced durability, longevity, and increased horsepower with the Wiseco Pro-Lite Piston Assembly. This innovative piston features an advanced forging design and piston skirt engineered to maximize horsepower and torque output for your motorcycle engine.

Key Features:

  • Innovative forging design for increased performance.
  • Piston skirt designed for maximum horsepower and torque.
  • Lightweight wrist pins promote faster engine revs and quicker throttle response.
  • Ceramic Composite-Cylinder sleeving or replating is required for oversizes.
  • Top-End bearing available separately (part no. B1003).

Included Items:

  • One 66.4mm piston
  • Two 2614CD rings
  • Two CW18 circlips
  • One S508 wrist pin

Important Note: Wiseco pistons, rings, and kits are sold by application and bore size. It is crucial to know the standard bore size of your engine to ensure you order the correct standard or oversized piston. Please contact technical support if you have any questions regarding fitment.

Before you buy

QUESTIONS? JUST ASK

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

Call us+44 330 133 3748
Email us[email protected]

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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