Industrial 75QS334P1 Left-Hand Black Bottom Bracket from Mack is a left-side bottom bracket identified by part number 75QS334P1 and finished in black. It provides the bearing interface between the crank and the bottom-bracket shell, enabling smooth rotation on the left-hand side of the assembly. Use in systems that specify a Mack 75QS334P1 Left-Hand Bottom Bracket and verify compatibility with your crankset and bottom-bracket shell.
