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Rein CPE0037 Engine Coolant Reservoir CapOE Quality 60-Day Returns
Part #: CPE0037

Rein CPE0037 Engine Coolant Reservoir Cap

N/A
31 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Land Rover, LR3, Range Rover, Range Rover Sport, and Freelander
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Not what you need? See all Engine Coolant Reservoir Cap options

OE Quality Expansion Tank Cap for Land Rover Cooling Systems

Rein CPE0037 is an OE quality engine coolant reservoir cap made as a direct replacement for the factory expansion tank cap. It is built to maintain the cooling system pressure specified by the original equipment manufacturer, helping preserve proper coolant system operation in Land Rover LR3, Range Rover, Range Rover Sport, and Freelander applications.

Key Features

  • Manufactured to strict engineering standards for materials and tolerances.
  • Direct fit replacement for the original expansion tank cap.
  • Meets or exceeds OE pressure specifications.
  • Produced by an original equipment supplier.
  • Black finish.

Product Details

This Rein expansion tank cap is designed for drivers and technicians who need a replacement coolant reservoir cap that matches OE fit and function. The CPE0037 is built to help keep the cooling system sealed at the correct pressure, which is critical for stable coolant performance and consistent system operation. It is a practical choice for Land Rover cooling system service when the original cap is worn, damaged, or no longer holding pressure. This part cross-references PCD000080 and PCD000090 for the same application.

Common Issues This Part May Address

  • Coolant loss from a cap that no longer seals properly.
  • Pressure-related cooling system faults caused by a weak or damaged cap.
  • Visible wear, cracking, or deterioration of the original reservoir cap.
  • Improper coolant system pressure on Land Rover LR3, Range Rover, Range Rover Sport, or Freelander models.
  • Service replacement for an OE-style expansion tank cap during cooling system maintenance.

Installation Notes and Tips

Verify the reservoir cap style and application before installation. Confirm the vehicle year, model, and any VIN-specific notes for Freelander applications, including updated replacement expansion tank requirements. Inspect the expansion tank neck and sealing surface for damage before installing the new cap. For best results, install on a cool engine and ensure the cap is fully seated and tightened according to the vehicle’s design.

Quality Assurance

Rein OE quality expansion tank caps are produced to match or exceed the materials used in the original part and are manufactured to high standards for long service life. CPE0037 is built to meet OE pressure requirements and is supplied by an original equipment supplier.

Compatible With

  • Fits 2005-2009 Land Rover LR3, N/A
  • Fits 2006-2009 Land Rover Range Rover, N/A
  • Fits 2006-2009 Land Rover Range Rover Sport, N/A
  • Fits 2004-2005 Land Rover Freelander, N/A
  • Fits 2003 Land Rover Freelander, N/A, to VIN 3A289675, with updated replacement expansion tank
  • Fits 2003 Land Rover Freelander, N/A, from VIN 3A289676
  • Fits 2002 Land Rover Freelander, N/A, with updated replacement expansion tank
BrandRein
Part NumberCPE0037
Application TypeApplicationSpecific
ColorBlack
Container TypeBG
Country of OriginCN
Item Height1.5000
Item Length3.5000
Item Level GTIN843266077252
Item Qty1
Item UOMEA
Item Weight0.1350
Item Weight Unit UOMLB
Item Width3.5000
Link to Manufacturer Pagewww.reinautomotive.com
Product Desc Extended 240Rein OE Quality expansion tank caps are designed to be direct replacements for OE caps. Rein caps are designed to match or exceed the OE materials used and are produced to the highest standards to ensure long service life.
Product Desc Invoice 40Rein Expansion Tank Cap
Product Desc Long 80Rein OE Quality Expansion Tank Cap
Product Desc Short 20Expansion Tank Cap

This part fits 31 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009Land RoverLR34.0LV6N/A
2009Land RoverLR34.4LV8N/A
2009Land RoverRange Rover4.2LV8N/A
2009Land RoverRange Rover4.4LV8N/A
2009Land RoverRange Rover Sport4.2LV8N/A
2009Land RoverRange Rover Sport4.4LV8N/A
2008Land RoverLR34.0LV6N/A
2008Land RoverLR34.4LV8N/A
2008Land RoverRange Rover4.2LV8N/A
2008Land RoverRange Rover4.4LV8N/A
2008Land RoverRange Rover Sport4.2LV8N/A
2008Land RoverRange Rover Sport4.4LV8N/A
2007Land RoverLR34.0LV6N/A
2007Land RoverLR34.4LV8N/A
2007Land RoverRange Rover4.2LV8N/A
2007Land RoverRange Rover4.4LV8N/A
2007Land RoverRange Rover Sport4.2LV8N/A
2007Land RoverRange Rover Sport4.4LV8N/A
2006Land RoverLR34.0LV6N/A
2006Land RoverLR34.4LV8N/A
2006Land RoverRange Rover4.2LV8N/A
2006Land RoverRange Rover4.4LV8N/A
2006Land RoverRange Rover Sport4.2LV8N/A
2006Land RoverRange Rover Sport4.4LV8N/A
2005Land RoverFreelander2.5LV6N/A
2005Land RoverLR34.0LV6N/A
2005Land RoverLR34.4LV8N/A
2004Land RoverFreelander2.5LV6N/A
2003Land RoverFreelander2.5LV6N/ATo VIN 3A289675, w/Updated Replacement Expansion Tank
2003Land RoverFreelander2.5LV6N/AFrom VIN 3A289676
2002Land RoverFreelander2.5LV6N/Aw/Updated Replacement Expansion Tank

* 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.