2Bros Parts

PISTON KIT 99-25 YZ250 66.40 B, PROX 01.2321.B RM250 03-12

$172.01
1

ProX Piston Kit with a 66.40mm bore size. The piston size is 66.36mm. This piston kit is manufactured using state-of-the-art CNC equipment with a low-expansion, low-friction piston alloy, matching that used by major Japanese engine manufacturers. ProX Piston Kits offer a high-quality replacement for original pistons in motorcycles, scooters, mopeds, ATVs, and personal watercraft. Many ProX pistons feature a Tin coating to aid the wear-in process and a new skirt coating designed to reduce friction after break-in, contributing to increased performance. The kit includes part number 01.2321.B.

Specifications
SKU
56-W742.B.PX
Brand
Pro-X Racing
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
257593
Shipping OptionsShown at checkout
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Piston Kit 66.40mm Bore

Upgrade your engine's performance and reliability with this precision-engineered ProX Piston Kit. Designed to meet the exacting standards of major Japanese engine manufacturers, this kit features a piston machined on state-of-the-art CNC equipment using a low-expansion, low-friction alloy.

This ProX Piston Kit offers a premium solution to replace your original piston, ensuring optimal performance for your powersports vehicle.

Key Features:

  • Piston Bore Size: 66.40mm
  • Piston Diameter: 66.36mm
  • Crafted with a low-expansion, low-friction piston alloy.
  • Coated for ultimate performance and reduced friction.
  • Tin coating assists the wear-in process and reduces friction after wear-in.
  • Black skirt coating is a unique blend of materials to increase performance.
  • Precision machined using the latest CNC equipment.
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