HomeBelts and Cooling > Radiators, Coolers and Related ComponentsRein EPK0018 Engine Coolant Reservoir Kit
Part #: EPK0018

Rein EPK0018 Engine Coolant Reservoir Kit

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⚙️ 59 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, X3, 325Ci, 330Ci, X5, 320i, 325i, 325xi, 330i, 330xi, 323Ci, 323i, 328Ci, and 328i
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Reliable Engine Coolant Reservoir Kit for BMW Models

The Rein Engine Coolant Reservoir Kit (Part Number EPK0018) is designed specifically for select BMW vehicles, including the 320i, 323Ci, 325i, 328i, 330i, X3, and X5 models. This application-specific expansion tank kit ensures proper coolant containment and system performance under demanding conditions.

Key Features of Rein Engine Coolant Reservoir Kit EPK0018

  • Includes sensor and cap where applicable for complete installation
  • Manufactured from virgin plastic that meets or exceeds original equipment specifications
  • Resistant to cracking and wear caused by repeated heat cycles, preventing coolant leaks
  • Direct fitment design allows for straightforward replacement without modifications

Detailed Product Description

The Rein EPK0018 expansion tank kit is engineered to maintain the integrity of the cooling system in BMW vehicles such as the 320i, 323Ci, 325i, 328i, 330i, X3, and X5. Constructed from high-quality virgin plastic, this reservoir withstands thermal stress and resists cracking and wear over time. The kit includes all necessary components, including sensors and caps when applicable, ensuring a seamless replacement process. Its direct fitment design aligns precisely with original equipment dimensions, simplifying installation and reducing downtime.

Common Applications and Issues Addressed

  • Replacement of cracked or leaking coolant reservoirs
  • Resolving coolant overflow or loss due to damaged expansion tanks
  • Preventing overheating caused by compromised coolant containment
  • Restoring proper coolant level monitoring with included sensor
  • Maintaining system pressure and preventing air ingress

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation to avoid injury
  • Verify compatibility with your specific BMW model and engine variant
  • Inspect hoses and clamps for wear and replace if necessary during installation
  • Follow manufacturer torque specifications for sensor and cap installation
  • Bleed the cooling system properly after installation to remove air pockets

Quality Assurance and Warranty Information

Rein expansion tanks are produced to meet or exceed original equipment standards, using durable virgin plastic materials designed for longevity and resistance to heat-related wear. The EPK0018 kit undergoes rigorous quality control to ensure reliable performance. While specific warranty terms may vary, Rein products typically come with a limited warranty covering defects in materials and workmanship.

BrandRein
Part NumberEPK0018
Application TypeApplicationSpecific
Container TypeBX
Country of OriginCN
Item Height5.5100
Item Length14.5600
Item Level GTIN843266074954
Item Qty1
Item UOMEA
Item Weight2.9850
Item Weight Unit UOMLB
Item Width5.7000
Link to Manufacturer Pagewww.reinautomotive.com
Product Desc Extended 240Rein OE Quality expansion tanks are designed to handle heat cycles and resist cracking. These tanks are produced from virgin plastic with no regrind to ensure durability. Rein expansion tank kits include the OE cap sensor (if applicable).
Product Desc Invoice 40Rein Expansion Tank Kit
Product Desc Long 80Rein OE Quality Expansion Tank Kit
Product Desc Short 20Expansion Tank Kit

This part fits 59 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2010BMWX33.0LL6N/A
2009BMWX33.0LL6N/A
2008BMWX33.0LL6N/A
2007BMWX33.0LL6N/A
2006BMW325Ci2.5LL6N/A
2006BMW330Ci3.0LL6N/A
2006BMWX32.5LL6N/A
2006BMWX33.0LL6N/A
2006BMWX53.0LL6N/A
2005BMW320i2.2LL6N/A
2005BMW325Ci2.5LL6N/A
2005BMW325i2.5LL6N/A
2005BMW325xi2.5LL6N/A
2005BMW330Ci3.0LL6N/A
2005BMW330i3.0LL6N/A
2005BMW330xi3.0LL6N/A
2005BMWX32.5LL6N/A
2005BMWX33.0LL6N/A
2005BMWX53.0LL6N/A
2004BMW320i2.2LL6N/A
2004BMW325Ci2.5LL6N/A
2004BMW325i2.5LL6N/A
2004BMW325xi2.5LL6N/A
2004BMW330Ci3.0LL6N/A
2004BMW330i3.0LL6N/A
2004BMW330xi3.0LL6N/A
2004BMWX32.5LL6N/A
2004BMWX33.0LL6N/A
2004BMWX53.0LL6N/A
2003BMW320i2.2LL6N/A
2003BMW325Ci2.5LL6N/A
2003BMW325i2.5LL6N/A
2003BMW325xi2.5LL6N/A
2003BMW330Ci3.0LL6N/A
2003BMW330i3.0LL6N/A
2003BMW330xi3.0LL6N/A
2003BMWX53.0LL6N/A
2002BMW320i2.2LL6N/A
2002BMW325Ci2.5LL6N/A
2002BMW325i2.5LL6N/A
2002BMW325xi2.5LL6N/A
2002BMW330Ci3.0LL6N/A
2002BMW330i3.0LL6N/A
2002BMW330xi3.0LL6N/A
2002BMWX53.0LL6N/A
2001BMW320i2.2LL6N/A
2001BMW325Ci2.5LL6N/A
2001BMW325i2.5LL6N/A
2001BMW325xi2.5LL6N/A
2001BMW330Ci3.0LL6N/A
2001BMW330i3.0LL6N/A
2001BMW330xi3.0LL6N/A
2001BMWX53.0LL6N/A
2000BMW323Ci2.5LL6N/A
2000BMW323i2.5LL6N/A
2000BMW328Ci2.8LL6N/A
2000BMW328i2.8LL6N/A
1999BMW323iSedan2.5LL6N/A
1999BMW328iSedan2.8LL6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.