The Murray 1727873ASM Spindle & Arm Assembly Left Hand is a replacement component designed to support proper cutting deck operation on compatible Murray lawn mowers. It combines the spindle and arm components into an assembly that helps support the mower deck’s blade system and maintain proper blade rotation. This assembly is a practical choice for replacing a worn, damaged, or faulty... https://www.wholetoolbox.com/murray-1727873asm-spindle-arm-assembly-left-hand/1727873ASM.html