The STIHL 42821801107 throttle cable is a genuine OEM replacement part designed for precise engine speed control in STIHL BR 500, BR 550, BR 600, BR 700, BR 700 X, BR 700 MAGNUM, BR 800 C-E, BR 800 X, and BR 800 MAGNUM series backpack blowers. This essential component ensures reliable operation and proper fitment, effectively connecting the throttle lever to the carburetor. It supersedes and replaces the previous part number 42821801106, offering an approximate length of 977.9 mm (38.5 inches) for optimal functionality.