Resistant to cracking and wear from heat cycles, preventing coolant loss. Manufactured to engineering standards with precise materials and tolerances. Complete drop-in kit includes everything needed for proper installation: expansion tank, cap, and all necessary components. Allows replacement of only the damaged unit instead of the entire assembly. Quality-engineered replacement part that properly restores cooling function. Compatible with: - ML320 1998-2003 Base Sport Utility V6 3.2L with washer fluid tank - ML350 2003-2005 Base Sport Utility V6 3.7L with washer fluid tank - ML430 1999-2001 Base Sport Utility 4.3L with washer fluid tank - ML500 2002-2005 Base Sport Utility 5.0L with washer fluid tank Part Numbers: 1638600560, 1638601160, 1638601260, 1638690820 Number of Ports: 3 Tank Capacity: 7.6 Liters Color: White Material: ABS Package Includes: 1 x Windshield Washer Fluid Reservoir Note: The package includes only the items listed. Other products are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.