Pop-Up Piston Assembly - Stihl MS660

This high-quality pop-up piston assembly (SKU: ST0801) is a direct replacement for the Stihl MS660 chainsaw, featuring a 54mm bore size for enhanced compression and power. Designed for durability and reliable performance, it is an ideal upgrade for demanding cutting tasks. This assembly ensures a precise fit and straightforward installation, making it a popular choice for both professional and enthusiast rebuilds.

• 54mm pop-up design increases compression for improved torque and cutting efficiency.
• Manufactured from durable, heat-resistant alloy for long-lasting performance under heavy use.
• Precision-machined for a direct fit with the Stihl MS660, simplifying engine rebuilds.

• Stihl MS660 Chainsaw
• Stihl MS660 Magnum
• Stihl 066 (compatible models)

Chainsaw Engine Components – high-performance replacement parts for professional and heavy-duty chainsaws.