Rein CTA0040 Engine Coolant Thermostat Housing Assembly

Brand Rein CTA0040
Application Type Applicationspecific
Bullet Point 1 Matches original equipment design specifications
Bullet Point 2 Direct fitments allows easy installation
Bullet Point 3 Manufactured to strict engineering standards/specifications in ma
Bullet Point 4 Thermostat set to 88 degrees celsius to maintain optimal running
Container Type Bx
Country of Origin Cn
Installation Instructions Included No
Is the Installation Hardware Included No
Item Height 3.9400
Item Length 4.5300
Item Level GTIN 888544069437
Item Qty 1
Item Quantity Size 1
Item Quantity Size UOM Ea
Item UOM Ea
Item Weight 0.6250
Item Weight Unit UOM Lb
Item Width 3.9400
Product Desc Extended 240 Rein oe quality thermostat assemblies are designed to be direct r
Product Desc Invoice 40 Rein thermostat assembly
Product Desc Long 80 Rein oe quality thermostat assembly
Product Desc Short 20 Thermostat assembly
Fits BMW · 8 vehicles

OE-style replacement. Matches original design specs for a straightforward swap.

Direct fit. Built for easy installation with factory-level tolerances.

Precise temperature control. Thermostat is calibrated to 88°C for steady engine running temperature.

Cross-references URO 11517805811 and 11517789014 for the same application. See all 2.

$51.53Free shipping
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Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
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Step 2 — Quantity
Order total $51.53
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

OE Thermostat Housing Assembly

Rein CTA0040 is an OE quality engine coolant thermostat housing assembly built for direct replacement service on select BMW diesel applications. It is engineered to match original equipment design specifications, with a thermostat calibrated to 88 degrees Celsius for stable engine operating temperature.

Compatible with 2009-2013 BMW X5 and 2009-2011 BMW 335d, this Rein thermostat assembly is made to the material and tolerance requirements of the factory part for straightforward installation and consistent cooling system performance.

  • Matches original equipment design specifications
  • Direct fitment for easier installation
  • Built to strict engineering standards for materials and tolerances
  • Thermostat calibrated to 88 degrees Celsius
  • OE quality replacement for BMW cooling system service

Product Details

The Rein CTA0040 thermostat housing assembly is manufactured as an application-specific replacement for vehicles that require OE-style fit and function. Rein uses vehicle-specific construction in metal or plastic, depending on factory requirements, and forms housings from molds cast directly from OEM parts to help maintain factory dimensions. The result is a thermostat assembly designed for accurate fitment on BMW X5 and BMW 335d cooling systems.

This part cross-references URO 11517805811 for the same application.

Common Cooling System Issues

  • Engine running too cool or too warm
  • Temperature fluctuations during normal driving
  • Thermostat housing replacement due to wear or cracking
  • Cooling system service on BMW X5 diesel models
  • Cooling system service on BMW 335d diesel models

Installation Notes

Install as a direct replacement thermostat housing assembly for the listed BMW applications. Verify the cooling system is properly drained, inspect mating surfaces and seals, and follow the vehicle service procedure for refill and bleeding after installation. Installation hardware is not included.

Quality Assurance

Rein OE quality thermostat assemblies are built to meet or exceed OE material requirements and are temperature calibrated for consistent response. The housing design and manufacturing tolerances are based on OEM part geometry to support proper fit and service life in BMW cooling system applications.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2013BMWX53.0LL6DIESELN/A—
2012BMWX53.0LL6DIESELN/A—
2011BMW335d3.0LL6DIESELN/A—
2011BMWX53.0LL6DIESELN/A—
2010BMW335d3.0LL6DIESELN/A—
2010BMWX53.0LL6DIESELN/A—
2009BMW335d3.0LL6DIESELN/A—
2009BMWX53.0LL6DIESELN/A—
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
URO — 1151780581111517789014