WSM - 54-544-12 - Top End Kit - 100.50 mm - Yamaha
A piston that fits loose burns oil and loses compression. One that fits tight seizes under heat. The WSM 54-544-12 is built for your 100.50 mm / Yamaha 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. Top-quality piston kit. Includes pistons, rings, pins, clips, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models. Riding Style: ATV. Every serious rebuild deserves components engineered to this standard, and the 54-544-12 delivers it.
Features
- Top-quality piston kit
- Includes pistons, rings, pins, clips, head and base gaskets and intake and exhaust gaskets and oil filter for 4-stroke models
Specifications
- Riding Style: ATV
- Bore - Oversize: +0,50 mm
- Units: Kit
- Bore Size: 100.50 mm
- Displacement: 660 cc
- Engine Type: 4-Stroke
- Product Name: Top End Rebuild Kit
- Bore - Oversize: +0.50 mm
- Material: Aluminum
- Riding Style: UTV
Frequently Asked Questions - WSM - 54-544-12 - Top End Kit - 100.50 mm - Yamaha
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.
