Keystone MA1288110 Windshield Washer Fluid Reservoir Large Tank with Cap and Sensor Port

The Keystone MA1288110 is an OEM-replacement windshield washer fluid reservoir designed as a direct-fit solution for the 2003–2004 Mazda 6 Sedan. This is the large-tank variant, supplied as the tank and cap only — the pump is not included. The reservoir features a fluid level sensor port, allowing compatibility with vehicles equipped with a washer fluid level sensor.

Built to match the original equipment design, this replacement reservoir restores proper washer fluid storage and delivery after the original unit has cracked, leaked, or failed from underhood heat and vibration. The smooth-finish plastic construction is engineered for lasting durability in demanding underhood conditions.

Key Features:

• Large-capacity tank design for extended washer fluid storage
• Includes cap; pump is not included
• Pre-molded fluid level sensor port for sensor-equipped vehicles
• Direct bolt-on replacement — matches OEM mounting points and dimensions
• Smooth finish plastic construction
• OEM Reference: GK2C-67-481A
• Partslink Number: MA1288110

This reservoir is intended for sedan body style applications and is the large-tank configuration. Verify your original tank size before ordering, as both standard and large tank versions were available for this generation Mazda 6.