Compatibility and purpose For MS311, MS362, and MS391 chainsaws this fuel tank assembly is designed to seamlessly part 11403500826, providing a precise OEMlike fit without modification. Easy installation Preinstalled oil filter and integrated tube enable a quick, straightforward assembly, helping you get your chainsaw operational in minutes and avoiding complex installation steps. Durable construction Built from reinforced plastic and metal components to withstand the rigors of chainsaw operation, helping maintain integrity through demanding cutting tasks. Replacement kit contents Includes all components such as the rear handle assembly and a complete fuel tank set, ensuring your equipment maintains performance and cutting efficiency. Performance and reliability Designed to support proper fuel flow and sealing, contributing to consistent performance and dependable operation during use. Applications and use scenarios Routine maintenance: aging or damaged fuel tank components on MS311, MS362, or MS391 to restore fuel system integrity and performance. Field or jobsite : Quick replacement to minimize downtime during projects such as tree trimming, storm cleanup, or landscape maintenance. Comprehensive refresh: Use as part of scheduled maintenance to worn components (rear handle assembly and fuel tank) for balanced handling and continued cutting efficiency.