Upgrade your motorcycle’s engine performance with this Genuine Yamaha Big Bore Cylinder & Piston Kit, engineered for a precise fit and reliable performance. Designed to meet OEM standards, this complete kit is ideal for riders looking to restore or enhance their engine with confidence.
Manufactured from high-quality steel, the cylinder barrel and piston ensure durability, excellent heat resistance, and long-lasting performance. The standard/stock size design makes this kit a direct replacement with no modifications required. Finished in a sleek silver coating, it delivers both performance and a factory-quality appearance.
This kit is fully compatible with Yamaha YZ125, WR125, and TE125 models from 2015 to 2019, making it a dependable choice for maintenance or engine rebuilds. Backed by a 1-month seller warranty, it offers peace of mind along with performance gains.
Genuine Yamaha quality
High-strength steel construction
Standard/stock size for direct fitment
Enhances engine efficiency and reliability
OEM-style silver finish
Yamaha YZ125 (2015–2019)
Yamaha WR125 (2015–2019)
Yamaha TE125 (2015–2019)
1 × Yamaha Cylinder Barrel (Standard/Stock Size)
1 × Piston (Standard Size)
1 × Piston Pin
1 × Set of Piston Rings
2 × Cir Clips
1 × Head Gasket
1 × Base Gasket
A complete, ready-to-install solution—perfect for Yamaha enthusiasts who demand quality, performance, and reliability.
Important:
To ensure proper engine operation and achieve peak performance, ECU re-tuning is required after installation. We strongly recommend Dynojet dyno tuning for accurate air–fuel ratio adjustment, optimal power delivery, and engine reliability.
Handling Time:
All orders are processed and shipped within 3 business days after payment is received.
Shipment Information
Your order will be shipped using Standard Delivery.
A tracking number will be provided once the package has been dispatched.
Estimated delivery time may vary depending on destination and courier processing.
All items are securely packed using Box + Bubble Wrap to ensure safe delivery.
Tracking Number:
A tracking number will be provided and is available for tracking via the eBay system once the item is shipped.
Certain delivery locations may be classified as remote areas by our express courier partners.
If your address falls within a remote area, an additional shipping fee may apply.
This may include (but is not limited to):
Canada - Some regions and postal codes outside major cities
Australia - Rural and outback areas
New Zealand - Remote or island regions Europe - Certain remote or island territories
United Kingdom:
Deliveries within mainland UK are not subject to remote area charges.
If your address is identified as a remote area, we will contact you before shipment to confirm any additional shipping fees.
All import taxes, duties, and customs charges are the buyer responsibility.
For U.S. buyers: Tariff and duty fees are buyers responsibility.
If your item arrives damaged, please provide clear images as proof.
Once verified, a full refund will be issued promptly.
Buy with confidence!
Every order is handled with care, packed securely, and shipped promptly to ensure your complete satisfaction.