Piston Kit 74-75 Yamaha YZ 250 70.0mm Standard Vintco PSY34-00

Description

This VintCo piston kit is designed for 1974-1975 Yamaha YZ250 models and provides a replacement piston assembly for vintage 2-stroke engine rebuilds. It is manufactured using modern materials and production methods for OEM-style fit and performance, and includes the piston, rings, pin and clips for straightforward installation. This kit is intended for use with Nikasil-plated or iron-lined cylinders only; the supplied rings are not compatible with the original chrome-plated Yamaha cylinder used on 1974-1975 YZ250 models. A wrist pin bearing is available separately, and additional size options are also available.

Features

  • Complete piston kit including piston, rings, pin and clips
  • Suitable for vintage 2-stroke Yamaha YZ250 engine rebuilds
  • OEM-style fit and performance
  • Wrist pin bearing sold separately
  • Additional size options available
  • Rings are compatible with Nikasil-plated or iron-lined cylinders
  • Rings are not compatible with the original chrome-plated Yamaha cylinder

Specifications

  • VintCo Part Number: PSY34-00
  • Piston size: 70.0 mm standard
  • Piston measurement: 69.94 mm
  • Clearance: 0.06 mm
  • Forged piston
  • MoS2 coated for break-in
  • Made in Germany

Vehicle Fitments

  • 1974 Yamaha YZ250
  • 1975 Yamaha YZ250

Piston Kit 74-75 Yamaha YZ 250 70.0mm Standard Vintco PSY34-00

Product form

This VintCo piston kit is designed for 1974-1975 Yamaha YZ250 models and provides a replacement piston assembly for vintage 2-stroke... Read more

1 in stock 1-2 business days

£178.87 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: VIN-PSY34-00
    Barcode: 0120000089758

    • Free shipping on all orders above £75
    • No hassle returns within 30 days

    Description

    This VintCo piston kit is designed for 1974-1975 Yamaha YZ250 models and provides a replacement piston assembly for vintage 2-stroke engine rebuilds. It is manufactured using modern materials and production methods for OEM-style fit and performance, and includes the piston, rings, pin and clips for straightforward installation. This kit is intended for use with Nikasil-plated or iron-lined cylinders only; the supplied rings are not compatible with the original chrome-plated Yamaha cylinder used on 1974-1975 YZ250 models. A wrist pin bearing is available separately, and additional size options are also available.

    Features

    • Complete piston kit including piston, rings, pin and clips
    • Suitable for vintage 2-stroke Yamaha YZ250 engine rebuilds
    • OEM-style fit and performance
    • Wrist pin bearing sold separately
    • Additional size options available
    • Rings are compatible with Nikasil-plated or iron-lined cylinders
    • Rings are not compatible with the original chrome-plated Yamaha cylinder

    Specifications

    • VintCo Part Number: PSY34-00
    • Piston size: 70.0 mm standard
    • Piston measurement: 69.94 mm
    • Clearance: 0.06 mm
    • Forged piston
    • MoS2 coated for break-in
    • Made in Germany

    Vehicle Fitments

    • 1974 Yamaha YZ250
    • 1975 Yamaha YZ250

    Shipping & Delivery

    How long will my item take to arrive?

    Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

    Where do you ship to?

    We currently only ship orders within the UK.

    How can I track my order?

    Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

    Can I collect my order?

    Unfortunately we do not offer order collections from our fulfilment centre.

    WHY NOT CHECK OUT

    Recently viewed products

      © 2026 Radhouse, Powered by Shopify

        • American Express
        • Apple Pay
        • Diners Club
        • Discover
        • Google Pay
        • Maestro
        • Mastercard
        • PayPal
        • Shop Pay
        • Union Pay
        • Visa