OE Quality
60-Day Returns

Rein EPT0139 Engine Coolant Reservoir
Reliable Engine Coolant Reservoir for Land Rover Discovery and Range Rover
The Rein EPT0139 engine coolant reservoir is designed specifically for Land Rover Discovery and Range Rover models. Manufactured from virgin plastic, this expansion tank meets or exceeds original equipment specifications to ensure durability and performance under demanding conditions.
Key Features of Rein EPT0139 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 Land Rover Discovery and Range Rover vehicles
- Manufactured to strict engineering standards and specifications
- Compact dimensions: 10.62" length, 8.66" width, and 7.08" height
- Lightweight design at 1.215 lbs for efficient engine cooling system integration
Detailed Description of Rein Engine Coolant Reservoir
The Rein EPT0139 expansion tank is engineered to handle the thermal stresses associated with engine coolant systems in Land Rover Discovery and Range Rover vehicles. Its virgin plastic construction provides enhanced resistance to cracking and degradation from heat cycles, helping to maintain coolant integrity and system pressure. This application-specific reservoir offers a direct replacement solution, ensuring a precise fit and straightforward installation without modifications.
Common Issues Addressed by This Expansion Tank
- Prevents coolant leaks caused by cracked or worn reservoirs
- Maintains proper coolant levels to avoid engine overheating
- Resists deformation from heat cycling to extend service life
- Ensures system pressure stability for optimal cooling performance
- Replaces damaged or deteriorated original equipment tanks
Installation Notes and Tips
- Designed for direct fitment on Land Rover Discovery and Range Rover models, no modifications required
- Inspect surrounding hoses and clamps during installation for wear or damage
- Ensure coolant system is depressurized before removal of the old reservoir
- Refill coolant to manufacturer specifications after installation
- Check for leaks and proper coolant level after initial engine run
Quality Assurance and Warranty Information
Rein expansion tanks are manufactured under strict engineering standards to meet OE quality requirements. The EPT0139 comes with a 24-month or 24,000-mile warranty, providing assurance of its durability and performance in Land Rover Discovery and Range Rover vehicles.
| Brand | Rein |
| Part Number | EPT0139 |
| Application Type | ApplicationSpecific |
| Container Type | BX |
| Country of Origin | CN |
| Item Height | 7.0800 |
| Item Length | 10.6200 |
| Item Level GTIN | 843266080108 |
| Item Qty | 1 |
| Item UOM | EA |
| Item Weight | 1.2150 |
| Item Weight Unit UOM | LB |
| Item Width | 8.6600 |
| Link to Manufacturer Page | www.reinautomotive.com |
| Product Desc Extended 240 | Rein 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 40 | Rein Expansion Tank |
| Product Desc Long 80 | Rein OE Quality Expansion Tank |
| Product Desc Short 20 | Expansion Tank |
| Warranty Distance | 24000 |
| Warranty Time | 24 |
This part fits 19 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2004 | Land Rover | Discovery | 4.6L | V8 | N/A | ||
| 2003 | Land Rover | Discovery | 4.6L | V8 | N/A | ||
| 2002 | Land Rover | Discovery | 4.0L | V8 | N/A | ||
| 2002 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 2001 | Land Rover | Discovery | 4.0L | V8 | N/A | ||
| 2001 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 2000 | Land Rover | Discovery | 4.0L | V8 | N/A | ||
| 2000 | Land Rover | Range Rover | 4.0L | V8 | N/A | ||
| 2000 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 1999 | Land Rover | Discovery | Series II | 4.0L | V8 | N/A | |
| 1999 | Land Rover | Range Rover | 4.0L | V8 | N/A | ||
| 1999 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 1998 | Land Rover | Range Rover | 4.0L | V8 | N/A | ||
| 1998 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 1997 | Land Rover | Range Rover | 4.0L | V8 | N/A | ||
| 1997 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 1996 | Land Rover | Range Rover | 4.0L | V8 | N/A | ||
| 1996 | Land Rover | Range Rover | 4.6L | V8 | N/A | ||
| 1995 | Land Rover | Range Rover | 4.0L | V8 | N/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.