2Bros Parts

PISTON KIT 81-25 PW50 40.00, PROX 01.2005.000

$59.88

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Delivery to Australia 5–10 days

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ProX 2-stroke piston kit with a 40.00mm bore. This kit is ready to install and includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using CNC equipment and utilize a low-expansion, low-friction piston alloy. The piston features an OEM style tin coating to aid in the break-in process. Replacement parts included are piston rings (02.2003.000), piston pin (04.1033), and piston clips (05.1010G). Manufacturer part number: 01.2005.000.

Specifications
SKU
56-W938+000.PX
Brand
Pro-X Racing
Availability
In Stock (2)

Fitments (2)

MakeModelYear
YAMAHALC 501980
YAMAHALC 501981
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
40.00mm
Variant Id
258278
Delivery5–10 days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Piston Kit - 40.00mm Bore

This ProX Piston Kit is designed for optimal performance and reliability. Each kit comes complete and ready for installation, including piston rings, a wrist pin, and circlips.

ProX pistons are manufactured using advanced CNC machinery, ensuring precision and high quality. They are constructed from a low-expansion, low-friction alloy, mirroring the materials used by major Japanese engine manufacturers.

To aid in the initial break-in period, these pistons feature an OEM-style tin coating. This kit includes all necessary replacement parts for a complete overhaul.

  • Precision machined from a high-quality, low-expansion, low-friction alloy
  • Includes piston rings, wrist pin, and circlips
  • OEM-style tin coating for enhanced break-in
  • Direct replacement parts for a seamless installation
  • 40.00mm bore diameter
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 Australia takes 5–10 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 Australia 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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