Rein EPT0004 Engine Coolant Reservoir

Engine Coolant Reservoir for Mercedes-Benz ML-Class

Rein EPT0004 is an OE-quality engine coolant reservoir built for Mercedes-Benz ML-Class applications. It is molded from virgin plastic in a natural finish to match OE material standards and help resist cracking from repeated heat cycles.

• Plastic coolant reservoir with natural color finish
• Twist-on cap type; cap not included
• No mounting hardware included
• No mounting brackets included
• OE-style replacement for factory expansion tank service

Fitment Details

• Fits 2003-2005 Mercedes-Benz ML350, N/A, w/o Cap
• Fits 2002-2005 Mercedes-Benz ML500, N/A, w/o Cap
• Fits 1998-2003 Mercedes-Benz ML320, N/A, w/o Cap
• Fits 2000-2003 Mercedes-Benz ML55 AMG, N/A, w/o Cap
• Fits 1999-2001 Mercedes-Benz ML430, N/A, w/o Cap

What This Reservoir Helps Address

• Cracked or brittle coolant expansion tank housing
• Coolant loss from a damaged reservoir body
• Heat-cycle damage in aging plastic tanks
• OE reservoir replacement needs on Mercedes-Benz ML350 and ML500 models
• Service replacement for ML320, ML55 AMG, and ML430 cooling systems

Installation Notes

Verify the vehicle application and note that this listing is for w/o Cap. Transfer or source the correct cap separately if needed. Compare the original reservoir shape, hose connections, and mounting points before installation on your Mercedes-Benz ML320, ML430, ML55 AMG, ML350, or ML500.

Quality Assurance

Rein Automotive builds this expansion tank to OE quality standards using virgin plastic rather than regrind material. That material choice supports durability and helps the reservoir maintain fit and performance over long-term cooling system service.