LSX 1.50" WATER PUMP SPACER conversion retro fit kit truck LQ4 LS1 5.3L LS Billet, 551697 1.50" Use to retain truck style accessories while using factory LS3 water pump Includes: (2) Spacers, Bolts, Gaskets Natural Aluminum Finish Notes: These spacers are used to retain truck style accessories (power steering, alternator) while using a factory LS3 water pump