2Bros Parts

PISTON KIT 91-94 KTM300 72.50, WISECO 631M07250

$260.57

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Delivery to United States 5–8 business days

Spread the cost with Klarna

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Wiseco Pro-Lite Piston Assembly - 631M07250. Durability, longevity and increased horsepower Innovative forging design and piston skirt provide maximum horsepower and torque. Lightweight wrist pins enable faster revs and quicker throttle response. Nikasil Bore-Cylinder sleeving or replating required for oversizes. Top-End bearing available part no. B1037. Two CW18 Circlips. One S477 Wrist Pin. Pistons, rings and kits are sold by application and bore size. Standard and oversizes are not indicated. To get the correct part, you must know the standard bore size to make sure you are ordering either the standard or correct amount of oversize that you need. Bore size 72.50mm.

Specifications
SKU
56-W631.WI+050
Brand
Wiseco
Availability
In Stock (2)

Fitments (15)

MakeModelYear
KTM300 EXC1990
KTM300 EXC1991
KTM300 EXC1992
KTM300 EXC1993
KTM300 EXC1994
KTM300 GS1990
KTM300 GS1991
KTM300 GS1992
KTM300 GS1993
KTM300 GS1994
KTM300 MX1990
KTM300 MX1991
KTM300 MX1992
KTM300 MX1993
KTM300 MX1994
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
72.50mm
Variant Id
257174
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wiseco Pro-Lite Piston Assembly

Enhance your motorcycle's performance with the Wiseco Pro-Lite Piston Assembly. This high-quality piston is engineered for durability, longevity, and increased horsepower.

Key Features:

  • Innovative forging design and piston skirt for maximum horsepower and torque.
  • Lightweight wrist pins contribute to faster revs and quicker throttle response.
  • Designed for specific applications and bore sizes.
  • Nikasil Bore requires cylinder sleeving or replating for oversizes.
  • Includes two CW18 Circlips and one S477 Wrist Pin.
  • Top-end bearing is available separately (part no. B1037).

Important Note: This piston kit is sold by application and bore size. Standard and oversize specifications are not explicitly indicated. It is crucial to know your engine's standard bore size to ensure you order the correct standard or oversize piston. Please contact Technical Service 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).

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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