Rein EPT0021 Engine Coolant Reservoir

Reliable Engine Coolant Reservoir for BMW and Rolls-Royce Models

The Rein EPT0021 engine coolant reservoir is designed specifically for select BMW and Rolls-Royce vehicles, including the 745i, 745Li, 750i, 750Li, 760i, 760Li, and Phantom models. Engineered to meet original equipment standards, this expansion tank ensures consistent performance and durability under demanding conditions.

Key Features of Rein EPT0021 Expansion Tank

• Manufactured from virgin plastic that meets or exceeds OE specifications
• Resistant to cracking and wear caused by repeated heat cycles
• Direct fitment for easy installation without modifications
• Produced under strict engineering standards for reliable operation
• Designed as an application-specific component for precise compatibility

Detailed Product Description

The Rein EPT0021 engine coolant reservoir is crafted to handle the thermal stresses typical in BMW 7 Series and Rolls-Royce Phantom engines. Its construction from high-quality virgin plastic provides enhanced resistance to cracking and degradation from heat cycling, which helps maintain coolant integrity and system pressure. The direct-fit design allows for straightforward replacement, minimizing downtime and installation complexity. Dimensions of approximately 12.59 inches in length, 9.44 inches in height, and 9.05 inches in width ensure proper fitment within the engine bay of compatible vehicles.

Common Applications and Problem Resolution

• Replacement of cracked or leaking coolant reservoirs in BMW 745i, 745Li, 750i, 750Li, 760i, 760Li, and Rolls-Royce Phantom
• Prevention of coolant loss due to wear from heat cycles
• Restoration of proper coolant system pressure and fluid containment
• Addressing coolant overflow or reservoir deformation issues
• Ensuring reliable coolant expansion and contraction during engine operation

Installation Notes and Tips

• Verify vehicle compatibility with Rein part number EPT0021 before installation
• Ensure the engine is cool before removing the old reservoir to avoid injury
• Inspect hoses and clamps for wear and replace if necessary during installation
• Follow manufacturer torque specifications for mounting hardware
• Refill coolant to proper levels and bleed the system to remove air pockets

Quality Assurance and Warranty Information

Rein expansion tanks are manufactured to meet stringent engineering standards, ensuring durability and performance consistent with original equipment. Produced from virgin plastic materials, the EPT0021 reservoir resists cracking and wear from heat cycles. While specific warranty details may vary, Rein products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or supplier for exact warranty terms.