FS500 Carburetor FS500L FS550 HD-31 HD-31A Brush Cutter PN: 4116-120-0606 Carburateur - Precision Fit for STIHL Heavy-Duty Brush CuttersDesigned specifically for STIHL professional brush cutters FS500, FS500L, FS550, ensuring seamless compatibility with original equipment and delivering stable power output. Verify your device model matches this compatibility list before purchase. - Direct Replacement for OEM Part NumbersEngineered to precisely match STIHL’s original carburetor part number 4116-120-0606, offering quality and performance equivalent to genuine components. Easily replace worn or damaged carburetors to restore peak performance. - Full Compatibility with Walbro Carburetor ModelsPerfectly replaces Walbro carburetors HD-31, HD-31-1, HD-31A, addressing discontinued parts or sourcing challenges. Provides a cost-effective repair solution for STIHL brush cutters. - Premium Carburetor Assembly, Ready to InstallIncludes 1 complete carburetor assembly per package. Precision manufacturing ensures plug-and-play installation without additional adjustments, saving time and repair costs. - Professional-Grade Performance Enhancement - Features reinforced design and wear-resistant materials to optimize fuel mixing efficiency, reducing startup issues and idle instability. Supports long-lasting, high-efficiency operation for FS500/FS550 series equipment in demanding tasks.