Aluminum piston cylinder Ø66.36 mm Yamaha YZ 250 (since 1999), Fantic XX (since 2022) origin (standard exchange)

Send out the old, get the new. It's that simple!

Top engine for motorcycle cross Yamaha YZ 250 and Fantic XXX 250

Complete piston liner kit with original cylinder for 250cc motorcycle Yamaha YZ since 1999 and Fantic XX since 2022.

This used original cylinder has been factory reconditioned to the characteristics of a new product.

We offer this complete pack with a new piston and seals for a perfect fit. Also remember to replace the 18x22x21.8 mm piston pin needle bearing which is not included in the top end kits (this bearing is sold separately).

This piston cylinder block kit includes

• 1 x cylinder in standard exchange (rebuilt at the factory)
• 1 x piston
• 1 x set of seals
• 2 x piston rings
• 2 x circlips
• 1 x gudgeon pin

Technical characteristics and dimensions of the cylinder block kit

• Cylinder brand: Yamaha
• Original cylinder reference: 5UP00 / 5MW00
• Cylinder material: aluminum
• Piston diameter: 66.36 mm
• Piston pin diameter: 18 mm

Original OEM Part Number 5MW-113110-200 / 5UP-113112-100 / 5UP113112100 / 5UP-113111-000

Standard exchange parts, please follow the following instructions:

• 1) Place your order on the cylinder kit website Yamaha
• 2) Send us your old cylinder Yamaha identical original to address: 50 Factory - 28 rue Jean Giraud - 79140 Cerizay. With the name and order number in the box.
• 3) Upon receipt of the old cylinder, we will send you a new cylinder kit within 24 hours (excluding weekends and public holidays).

To order the needle cage compatible with the cylinder, click on this link.