The genuine OEM part numbers for the 2022–2025 Acura MDX windshield washer reservoir tank and pump assembly are 76841-TYA-A01 (for the reservoir bottle tank) and 76806-TYA-A02 (for the washer pump motor). This 4.0-liter factory tank assembly fits all trim levels of the fourth-generation MDX, including the Base, SH-AWD, and Type S models