WISECO - RE900M04750 - Piston Kit - 47.50 mm - Yamaha YZ85
A piston that fits loose burns oil and loses compression. One that fits tight seizes under heat. The WISECO RE900M04750 is built for your 47.50 mm / Yamaha YZ85 engine with the kind of precise dimensional control that sits exactly where it should — delivering clean combustion sealing and smooth cylinder wall contact from the first fire-up. 2000 Series alloy provides extreme strength for extreme conditions. Dedicated forging for greater strength and light weight. Skirt Coating: ArmorFit™. Every serious rebuild deserves components engineered to this standard, and the RE900M04750 delivers it.
Features
- 2000 Series alloy provides extreme strength for extreme conditions
- Dedicated forging for greater strength and light weight
- Premium-quality rings enhance sealing for each application
- ArmorFit™ skirt coating conforms to the bore for the ultimate in piston control and wear
- ArmorPlating® protects the crown from harmful detonation, improves pinbore for decreased wear and bore deformation and enhances ring seal for long life and performance
- Made in the USA
Specifications
- Skirt Coating: ArmorFit™
- Engine Type: 2-Stroke
- Piston Diameter: 47.44 mm
- Product Name: Piston Kit
- Riding Style: Off-Road
- Bore - Oversize: Standard
- Model: Racer Elite Series
- Piston Material: Forged 2618 Aluminum
- Displacement: 85 cc
- Units: Kit
- Bore Size: 47.50 mm
Frequently Asked Questions - WISECO - RE900M04750 - Piston Kit - 47.50 mm - Yamaha YZ85
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
