- Fitment: This chainsaw carburetor is specifically designed for use with models MS171, MS181, MS181C, MS201, and MS211, as well as part numbers C1QS269 and C1QS191, ensuring a perfect match for your equipment. - Replacement Part Numbers: Compatible with C1QS269, C1QS191, 1139 120 0613, 1139 120 0619, 1139 120 7100, 1139 120 0612, and 1139 120 608. - Enhanced Efficiency: Improve your chainsaw's performance with this carburetor, which optimizes combustion efficiency. This results in faster cutting times and reduced labor intensity, making your work more efficient. - Durability: Crafted from high-quality materials, this carburetor is built to last, contributing to the overall longevity of your chainsaw. - Practical Applications: Ideal for professional landscapers and homeowners alike, this carburetor is perfect for heavy-duty cutting tasks in forestry, yard maintenance, or construction projects. Whether you're trimming trees or clearing brush, it ensures your chainsaw operates at peak performance. - Easy Installation: Designed for straightforward installation, this carburetor allows you to quickly get back to work without unnecessary downtime. Upgrade your chainsaw's performance with this reliable carburetor, engineered for efficiency and durability, and enjoy the benefits of enhanced cutting power and extended tool life.