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Yamaha YFZ50 Namura .020 Over Bore Piston Kit 39.5mm (2017–2025)
Description:
Overbore piston kit designed to raise displacement and responsiveness for the Yamaha YFZ50, improving compression, power delivery, and engine durability while maintaining reliability for youth-use ATV maintenance and performance upgrades.
Features:
- Namura .020 over bore 39.5mm for YFZ50
- Direct fit, improved compression and performance
- Suitable for 2017-2025 YFZ50 models
Includes:
- 1 x Namura .020 Over Bore Piston Kit 39.5mm
Fits Models:
- Yamaha YFZ50
Model Years:
2017-2025
Submodels:
- Youth/Children’s ATV (YFZ50 specific)
Engine Options:
- 50cc
Namura .020 Over Bore Piston Kit 39.5mm for Yamaha YFZ50 (2017-2025)
Namura, piston kit, overbore, 39.5mm, Yamaha YFZ50, 2017-2025, engine parts
Shipping Information
Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.
The Kren Bits journey:
- Order received — Day 0
- With fulfilment — Day 1–2
- Heading to courier — Day 2–4
- Shipped — Day 3–7
- Almost there — Day 5–10
- Delivered — Day 5–14
Where your part ships from:
Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.
We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.
For more details, visit our Track Your Order page.
Product Enquiry
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