HomeBelts and Cooling > Radiators, Coolers and Related ComponentsRein EPT0025 Engine Coolant Reservoir
Part #: EPT0025

Rein EPT0025 Engine Coolant Reservoir

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⚙️ 17 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, X5 and Z3
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Rein Engine Coolant Reservoir for BMW X5 and Z3

The Rein EPT0025 engine coolant reservoir is designed specifically for BMW X5 and Z3 models. Manufactured from virgin plastic, this expansion tank meets or exceeds original equipment specifications to ensure reliable performance under demanding conditions.

Key Features of Rein EPT0025 Expansion Tank

  • Produced from virgin plastic that meets or exceeds OE specifications
  • Resistant to cracking and wear caused by repeated heat cycles
  • Direct fitment for easy installation on BMW X5 and Z3 vehicles
  • Manufactured to strict engineering standards for durability and reliability
  • Compact dimensions: 10.23" length, 8.85" width, 9.05" height
  • Lightweight design weighing approximately 2.687 lbs

Detailed Description of Rein Engine Coolant Reservoir

The Rein EPT0025 engine coolant reservoir is engineered to handle the thermal stresses associated with engine heat cycles, reducing the risk of cracking and coolant leakage. Its construction from high-quality virgin plastic ensures long-lasting durability and resistance to wear. Designed as an application-specific part, this expansion tank provides a direct replacement for the original component in BMW X5 and Z3 models, facilitating a straightforward installation process without modifications.

Common Issues Addressed by This Expansion Tank

  • Prevents coolant loss due to cracked or worn reservoirs
  • Maintains proper coolant pressure and flow within the cooling system
  • Reduces risk of engine overheating caused by coolant leaks
  • Eliminates coolant contamination from damaged tanks
  • Restores cooling system integrity for BMW X5 and Z3 vehicles

Installation Notes and Tips

  • Ensure the vehicle is cool before removing the old coolant reservoir
  • Check all hose connections and clamps for wear and replace if necessary
  • Use OEM or equivalent coolant when refilling the system
  • Verify proper fitment of Rein EPT0025 before final installation
  • Bleed the cooling system to remove air pockets after installation

Quality Assurance and Warranty Information

Rein expansion tanks are manufactured under strict engineering standards to meet or exceed OE quality. The EPT0025 comes with a 24-month or 24,000-mile warranty, providing assurance of its durability and performance in BMW X5 and Z3 applications.

BrandRein
Part NumberEPT0025
Application TypeApplicationSpecific
Container TypeBX
Country of OriginCN
Item Height9.0500
Item Length10.2300
Item Level GTIN843266074794
Item Qty1
Item UOMEA
Item Weight2.6870
Item Weight Unit UOMLB
Item Width8.8500
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 the plastic is durable and will have a long service life.
Product Desc Invoice 40Rein Expansion Tank
Product Desc Long 80Rein OE Quality Expansion Tank
Product Desc Short 20Expansion Tank
Warranty Distance24000
Warranty Time24

This part fits 17 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2003BMWX54.4LV8N/A
2003BMWX54.6LV8N/A
2002BMWX54.4LV8N/A
2002BMWX54.6LV8N/A
2002BMWZ32.5LL6N/A
2002BMWZ33.0LL6N/A
2001BMWX54.4LV8N/A
2001BMWZ32.5LL6N/A
2001BMWZ33.0LL6N/A
2000BMWX54.4LV8N/A
2000BMWZ32.5LL6N/ATo 7/99, Requires Expansion Tank Inlet Hose CHE0273P
2000BMWZ32.5LL6N/AFrom 7/99
2000BMWZ32.8LL6N/ATo 7/99, Requires Expansion Tank Inlet Hose CHE0273P
2000BMWZ32.8LL6N/AFrom 7/99
1999BMWZ32.5LL6N/ARequires Expansion Tank Inlet Hose CHE0273P
1999BMWZ3Convertible2.8LL6N/AFrom 9/98, Requires Expansion Tank Inlet Hose CHE0273P
1999BMWZ3Coupe2.8LL6N/ARequires Expansion Tank Inlet Hose CHE0273P

* 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.