Proflow Belt Tensioner, For Holden Commodore LS VT-VZ, Billet Aluminium, Black Anodised - PFETT100LSBKPart Number: PFETT100LSBK Proflow's Billet belt tensioners with idler pulleys fit all GM LS passenger car engines, including LS1, 2, 3, 6, and 7 and feature a higher pulley sidewall so that your serpentine belt always stays in place. The belt tensioners feature lightweight 6061 T6 aluminium billet construction and are black anodised or polished to be attractive and functional additions to any LS passenger car engines. Suits VT VZ water pump.