Heavy Duty Fluid Reservoir CapCOOLANT TANK CAPApplication specific – made to match dimensions of reservoir cap on only certain vehicle years, makes and modelsDirect replacement – this engine coolant reservoir cap directly replaces a cracked or lost original capSeamless fit – reverse-engineered from the original equipment to fit perfectlyExcellent value – a quick, easy replacement that’s less expensive than going back to the dealershipCracked or lost the original engine coolant reservoir cap? Replace it seamlessly and effectively with this precisely engineered, direct replacement cap.