Rein EPT0019 Engine Coolant Reservoir

OE Quality Engine Coolant Reservoir

Rein EPT0019 is an OE-quality engine coolant reservoir built for Volvo cooling system service. It is made to match original fit and function for select Volvo XC90 and Volvo S80 applications, with materials chosen to handle repeated heat cycles and daily coolant expansion.

For Volvo XC90 coolant reservoir replacement and Volvo S80 expansion tank service, this Rein tank focuses on direct fitment, durable construction, and consistent cooling system performance. The EPT0019 part number is a practical OE-style replacement for vehicles that need a dependable expansion tank without changing the factory layout.

Key Features

• Produced from virgin plastic that meets or exceeds OE material specifications
• Resists cracking and wear from heat cycles to help prevent coolant loss
• Direct fitment supports straightforward installation
• Built to strict engineering standards for materials and tolerances
• OE-quality design for factory-style cooling system service

Detailed Product Overview

Rein EPT0019 is an engine coolant reservoir designed as an OE-quality expansion tank for select Volvo cooling systems. The reservoir is manufactured from virgin plastic with no regrind, which helps improve durability and long-term resistance to heat-related stress. That construction supports stable coolant storage and expansion control in vehicles such as the Volvo XC90 and Volvo S80.

This part cross-references URO 30760100 for the same application. If you are replacing a cracked or aging expansion tank, EPT0019 provides a direct-fit solution that aligns with factory specifications and helps restore proper coolant system operation.

Common Problems This Part Helps Address

• Coolant leaks caused by a cracked reservoir
• Plastic fatigue from repeated engine heat cycles
• Loss of coolant from worn tank seams or fittings
• Cooling system service issues on Volvo XC90 and Volvo S80 models
• Fitment problems from non-OE-style replacement tanks

Installation Notes and Tips

Before installation, verify the vehicle’s VIN and model year against the listed fitment, especially for Volvo S80 applications with VIN-specific coverage. Inspect hoses, caps, and surrounding cooling system components for wear before transferring the reservoir into service. After installation, refill and bleed the cooling system according to factory procedures to help prevent air pockets.

• Fits 2003-2014 Volvo XC90, N/A
• Fits 2005 Volvo S80, N/A, From VIN 174837, To VIN 185038
• Fits 1999-2001 Volvo S80, N/A, From VIN 174837, To VIN 185038
• Fits 1999-2005 Volvo S80, N/A, From VIN 203880
• Fits 2002-2004 Volvo S80, N/A, VIN 174837, To VIN 185038

Quality Assurance

Rein designs OE-quality expansion tanks to install, fit, and perform to original-manufacturer expectations. EPT0019 is produced to strict material and tolerance standards using virgin plastic to support long service life in demanding cooling system conditions.