Piston Kit 39.50mm 08-13 Polaris 50, Namura NA-50015-2 ATV Quad, Polaris 50 Outlaw 2008-2019, 50 Predator 2007, Yamaha YFZ50 2017-21

Description

The Namura piston kit is a standard bore replacement kit engineered for select Polaris and Yamaha 50cc models. Featuring a 39.50mm bore and 38.48mm piston diameter, this cast piston kit includes all necessary components for installation. Designed with high silicone content for improved strength, the piston dome is anodised for heat resistance, while the Molybdenium Teflon-coated skirts reduce friction and extend service life.

Features

  • Manufactured by Namura

  • High-silicone-content cast piston for added strength

  • Molybdenium Teflon-coated skirts reduce wear and improve lifespan

  • Anodised piston dome for enhanced heat resistance and durability

  • Kit includes piston, rings, pin, and clips

  • Designed for standard bore size: 39.50 mm

  • Piston diameter: 38.48 mm

Specifications

  • Bore Size: 39.50 mm

  • Piston Diameter: 38.48 mm

  • Part Number: 56-W837.050.NT

Cross-Reference OEM Part Numbers

  • Namura NA-50015-2

  • CLIP-PISTON PIN 0453432

  • PISTON-PREDATOR 50 0453833

  • PIN-PISTON, PREDATOR 50 0453832

  • SET-RING, PISTON, PREDATOR 50 0453834

Vehicle Fitments

  • 2007 Polaris Predator 50

  • 2008 Polaris Outlaw 50

  • 2009 Polaris Outlaw 50

  • 2010 Polaris Outlaw 50

  • 2011 Polaris Outlaw 50

  • 2012 Polaris Outlaw 50

  • 2013 Polaris Outlaw 50

  • 2014 Polaris Outlaw 50

  • 2015 Polaris Outlaw 50

  • 2016 Polaris Outlaw 50

  • 2017 Yamaha YFZ50

  • 2018 Yamaha YFZ50

  • 2019 Yamaha YFZ50

  • 2020 Yamaha YFZ50

  • 2021 Yamaha YFZ50

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer Model Years
POLARIS PREDATOR 50 2007
POLARIS OUTLAW 50 2008-2019

Piston Kit 39.50mm 08-13 Polaris 50, Namura NA-50015-2 ATV Quad, Polaris 50 Outlaw 2008-2019, 50 Predator 2007, Yamaha YFZ50 2017-21

Product form

The Namura piston kit is a standard bore replacement kit engineered for select Polaris and Yamaha 50cc models. Featuring a... Read more

Out of stock

£0.00 Incl. VAT

    • Guaranteed secure & safe checkout.

      shop pay

    SKU: 56-W837.050.NT

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

    Description

    The Namura piston kit is a standard bore replacement kit engineered for select Polaris and Yamaha 50cc models. Featuring a 39.50mm bore and 38.48mm piston diameter, this cast piston kit includes all necessary components for installation. Designed with high silicone content for improved strength, the piston dome is anodised for heat resistance, while the Molybdenium Teflon-coated skirts reduce friction and extend service life.

    Features

    • Manufactured by Namura

    • High-silicone-content cast piston for added strength

    • Molybdenium Teflon-coated skirts reduce wear and improve lifespan

    • Anodised piston dome for enhanced heat resistance and durability

    • Kit includes piston, rings, pin, and clips

    • Designed for standard bore size: 39.50 mm

    • Piston diameter: 38.48 mm

    Specifications

    • Bore Size: 39.50 mm

    • Piston Diameter: 38.48 mm

    • Part Number: 56-W837.050.NT

    Cross-Reference OEM Part Numbers

    • Namura NA-50015-2

    • CLIP-PISTON PIN 0453432

    • PISTON-PREDATOR 50 0453833

    • PIN-PISTON, PREDATOR 50 0453832

    • SET-RING, PISTON, PREDATOR 50 0453834

    Vehicle Fitments

    • 2007 Polaris Predator 50

    • 2008 Polaris Outlaw 50

    • 2009 Polaris Outlaw 50

    • 2010 Polaris Outlaw 50

    • 2011 Polaris Outlaw 50

    • 2012 Polaris Outlaw 50

    • 2013 Polaris Outlaw 50

    • 2014 Polaris Outlaw 50

    • 2015 Polaris Outlaw 50

    • 2016 Polaris Outlaw 50

    • 2017 Yamaha YFZ50

    • 2018 Yamaha YFZ50

    • 2019 Yamaha YFZ50

    • 2020 Yamaha YFZ50

    • 2021 Yamaha YFZ50

    Vehicle Compatibility

    Please check the exact model and year before ordering.

    Manufacturer Model Years
    POLARIS PREDATOR 50 2007
    POLARIS OUTLAW 50 2008-2019

    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