Stihl 3/8" Pitch - 7 Tooth Rim Sprocket

Maintain the professional-grade performance of your high-output chainsaw with the STIHL 3/8" 7-Tooth Rim Sprocket. This genuine replacement part (0000 642 1223) is designed for heavy-duty professional saws, providing a smooth and consistent drive for your cutting chain. Unlike spur sprockets, this rim-style system allows the chain to align perfectly with the bar groove, reducing friction and wear on both the chain and the guide bar for a more efficient cut.

Engineered to handle the immense torque of STIHL’s legendary professional series, this sprocket is compatible with an extensive range of powerheads, from the agile MS 362 to the powerhouse MS 661. Its 7-tooth configuration is the industry standard for 3/8" pitch systems, offering the ideal balance of chain speed and lugging power. Regularly replacing your rim sprocket is a cost-effective way to extend the life of your drive system and ensure your saw is always ready for felling, bucking, and high-production timber work.

Maintenance Advantage: Rim sprockets offer a superior chain-to-bar alignment compared to spur sprockets. When the rim wears down, it is easily replaceable without needing to swap the entire clutch drum, saving you time and money in the long run.

Key Features & Benefits

• Precision Alignment: The floating rim design slides on the splined hub to keep the chain perfectly centered in the bar groove.
• High-Torque Durability: Built to withstand the extreme demands of professional-grade saws ranging from 60cc to 90cc+.
• Universal Fitment: Compatible with a vast lineup of STIHL saws, including the MS 360, MS 461, MS 462, MS 660, and MS 661.
• Optimized Speed: The 7-tooth design provides consistent RPMs and chain tension for professional 3/8" pitch chains.
• Genuine STIHL Quality: Manufactured from hardened steel for maximum wear resistance and heat dissipation.

Technical Specifications & Fitment