Top End Piston Kit 86-87 Yamaha YZ 125 57.5mm 1.5mm Over Vintco KTY66-1.5

Description

VintCo top end piston kit KTY66-1.5 is a complete rebuild kit for 1986-1987 Yamaha YZ125 models, supplied with a 57.5 mm piston in +1.5 mm oversize, rings, pin, clips, a wrist pin bearing, and a full top-end gasket set including head, base, intake, exhaust, O-ring, holder and power valve gaskets. The kit is manufactured using modern materials and production methods for OEM-equivalent fitment and performance, with OEM part number cross-references provided, and is priced 10% lower than purchasing the included items separately.

Features

  • Complete top end rebuild kit
  • Includes piston, rings, pin and clips
  • Includes wrist pin bearing
  • Includes full top-end gasket set
  • Covers head, base, intake, exhaust, O-ring, holder and power valve gasket positions
  • Intended for straightforward top end rebuild work
  • OEM part number cross-references provided for exact fitment
  • Manufactured with modern materials and production methods for OEM-equivalent fitment and performance
  • Priced 10% lower than purchasing the included items individually

Specifications

  • VintCo Part Number: KTY66-1.5
  • Piston diameter: 57.5 mm
  • Oversize: +1.5 mm
  • Piston construction: Forged
  • Piston coating: MOS2
  • Country of manufacture: Germany
  • Standard: 57.44 mm
  • Clearance: 0.06 mm

Cross-Reference OEM Part Numbers

  • Head gasket: 93211-07720-00
  • Head gasket: 93210-65721-00
  • Base gasket: 1LX-11351-10-00
  • Intake gasket: 4TP-13621-00-00
  • Exhaust pipe gasket: 1LX-14613-01-00
  • Exhaust pipe gasket: 93210-42728-00
  • O-ring: 93210-270A8-00
  • Holder gasket: 5X4-1131N-10-00
  • Power valve gasket: 3LX-11993-01-00

Vehicle Fitments

  • 1986 Yamaha YZ125
  • 1987 Yamaha YZ125

Top End Piston Kit 86-87 Yamaha YZ 125 57.5mm 1.5mm Over Vintco KTY66-1.5

Product form

VintCo top end piston kit KTY66-1.5 is a complete rebuild kit for 1986-1987 Yamaha YZ125 models, supplied with a 57.5... Read more

Out of stock

£191.80 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: VIN-KTY66-1.5
    Barcode: 0120000103133

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

    Description

    VintCo top end piston kit KTY66-1.5 is a complete rebuild kit for 1986-1987 Yamaha YZ125 models, supplied with a 57.5 mm piston in +1.5 mm oversize, rings, pin, clips, a wrist pin bearing, and a full top-end gasket set including head, base, intake, exhaust, O-ring, holder and power valve gaskets. The kit is manufactured using modern materials and production methods for OEM-equivalent fitment and performance, with OEM part number cross-references provided, and is priced 10% lower than purchasing the included items separately.

    Features

    • Complete top end rebuild kit
    • Includes piston, rings, pin and clips
    • Includes wrist pin bearing
    • Includes full top-end gasket set
    • Covers head, base, intake, exhaust, O-ring, holder and power valve gasket positions
    • Intended for straightforward top end rebuild work
    • OEM part number cross-references provided for exact fitment
    • Manufactured with modern materials and production methods for OEM-equivalent fitment and performance
    • Priced 10% lower than purchasing the included items individually

    Specifications

    • VintCo Part Number: KTY66-1.5
    • Piston diameter: 57.5 mm
    • Oversize: +1.5 mm
    • Piston construction: Forged
    • Piston coating: MOS2
    • Country of manufacture: Germany
    • Standard: 57.44 mm
    • Clearance: 0.06 mm

    Cross-Reference OEM Part Numbers

    • Head gasket: 93211-07720-00
    • Head gasket: 93210-65721-00
    • Base gasket: 1LX-11351-10-00
    • Intake gasket: 4TP-13621-00-00
    • Exhaust pipe gasket: 1LX-14613-01-00
    • Exhaust pipe gasket: 93210-42728-00
    • O-ring: 93210-270A8-00
    • Holder gasket: 5X4-1131N-10-00
    • Power valve gasket: 3LX-11993-01-00

    Vehicle Fitments

    • 1986 Yamaha YZ125
    • 1987 Yamaha YZ125

    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