Shopping Cart

Your cart is empty.

Your cart is empty.

85cc Cylinder Piston Gasket Top End Kit fit for Yamaha YZ85 YZ80 2002-2022 47.5mm Bore OEM 4ES-11311-30 5PA-11311-20-00 5PA-11631-00-B0

4.5 (1) Write Review
Free shipping on orders over $29.99

$79.99

$ 30 .99 $30.99

In Stock
  • Precision Fit & Compatibility：fitment for Yamaha YZ85 (2002-2022) and YZ80 (1993-2001).Includes all necessary components for a complete top-end rebuild.
  • Matching OEM part numbers 4ES-11311-30-00, 5PA-11311-20-00, and 5PA-11631-00-B0.
  • Premium Materials & Durability：Cylinder made of high-strength aluminum with sleeve for superior heat resistance and wear protection. Piston and gaskets engineered to meet or exceed original performance standards.
  • Complete Kit for Hassle-Free Installation：Kit includes cylinder, piston, piston rings, wristpin, circlips, base gasket, and O-rings. No modifications required—direct bolt-on installation.
  • Race-Proven Performance：Designed for 85cc displacement with 8.2:1 compression ratio. Trusted by professional mechanics and motocross teams for reliability in extreme conditions.


Product Description

Cylinder
Cylinder
Cylinder
Cylinder

KLP 2020
Reviewed in the United States on August 13, 2024
This looks to be OEM quality, excellent product for the price. Comes with everything as described, Was easy to install. The Cylinder walls have a nice hone to ensure even oil distribution. All mating surfaces seemed to be decked to perfection to ensure a proper seal between surfaces. Seems to have added a little bit of power to my motor. would highly recommend if you're looking for a decent performance or cosmetic enhancement.