Rein CTA0028 Engine Coolant Thermostat Housing Assembly

Brand Rein CTA0028
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 105 degrees celsius to maintain optimal running
Container Type Bx
Country of Origin De
Installation Instructions Included No
Is the Installation Hardware Included No
Item Height 4.0000
Item Length 7.0000
Item Level GTIN 888544068041
Item Qty 1
Item Quantity Size 1
Item Quantity Size UOM Ea
Item UOM Ea
Item Weight 0.7200
Item Weight Unit UOM Lb
Item Width 5.0000
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 and Rolls-Royce · 373 vehicles

OE quality replacement. Matches original equipment design specifications for a smooth, easy installation.

Direct fit. Allows easy installation with strict engineering tolerances.

Temperature calibrated. Set to 105°C for consistent cooling system response.

Cross-references 11530304425, 11537502779 and 11537586885 for the same application. See all 3.

$52.50Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
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Step 2 — Quantity
Order total $52.50
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

OE Quality Thermostat Housing Assembly

Rein CTA0028 is an OE-quality engine coolant thermostat housing assembly built for direct replacement service on select BMW and Rolls-Royce cooling systems. It is engineered to match original equipment design specifications, with a thermostat calibrated to 105 degrees Celsius for stable operating temperature control.

Compatible with BMW M5, X5, X6, X7, XM, M3, M4, M8, 760i xDrive, and Rolls-Royce Ghost, Phantom, and Cullinan applications, this thermostat housing assembly is made to support accurate coolant flow and straightforward installation. Rein CTA0028 is also a direct-fit option for BMW and Rolls-Royce owners looking for an OE-style replacement.

Key Features

  • Matches original equipment design specifications
  • Direct fitment for easier installation
  • Built to strict engineering standards for materials and tolerances
  • Thermostat calibrated to 105 degrees Celsius
  • OE-quality housing construction in metal or plastic, based on vehicle requirements
  • Rein CTA0028 replacement part for select BMW and Rolls-Royce cooling systems

Detailed Description

Rein Automotive thermostat assemblies are manufactured as direct replacements for OE units, using molds cast from OEM parts to help maintain factory-style dimensions and fit. The housing design follows vehicle-specific requirements, and the assembly uses high-quality components selected for durability and service life. For technicians and owners servicing BMW cooling system repairs, CTA0028 provides a precise replacement for the original thermostat housing assembly.

This part cross-references BMW OE numbers 11530304425 and 11537502779 for the same application.

What It Helps Address

  • Engine running too cool or too hot due to thermostat control issues
  • Coolant temperature instability during normal driving
  • Leaks or sealing concerns at the thermostat housing
  • Fitment problems caused by worn or incorrect replacement housings
  • Cooling system service needs on BMW and Rolls-Royce vehicles

Installation Notes and Tips

Verify the part number and vehicle application before installation. This thermostat housing assembly is application-specific and does not include installation instructions or hardware. Because cooling system components are sensitive to fit and sealing, inspect related hoses, seals, and coolant condition during service.

Quality Assurance

Rein CTA0028 is manufactured to OE-style material and tolerance standards for consistent fit and performance. The assembly is produced in Germany and built to meet the factory requirements expected for BMW and Rolls-Royce cooling system repair.

Fits 2023-2026 BMW 760i xDrive, N/A. Fits 2023-2026 BMW M2, N/A. Fits 2019-2021 BMW M2, N/A. Fits 2021-2026 BMW M3, N/A. Fits 2015-2018 BMW M3, N/A. Fits 2015-2026 BMW M4, N/A. Fits 2025-2026 BMW M5, N/A. Fits 2018-2023 BMW M5, N/A. Fits 2012-2016 BMW M5, N/A. Fits 2025-2026 BMW M5 Touring, N/A. Fits 2020-2026 BMW X5, N/A. Fits 2004-2018 BMW X5, N/A. Fits 2008-2026 BMW X6, N/A. Fits 2023-2026 BMW X7, N/A. Fits 2023-2026 BMW XM, N/A. Fits 2019-2026 Rolls-Royce Cullinan, N/A. Fits 2023-2025 BMW Alpina XB7, N/A. Fits 2022-2025 BMW M8, N/A. Fits 2020 BMW M8, N/A. Fits 2020-2025 BMW M8 Gran Coupe, N/A. Fits 2020-2025 BMW X4, N/A. Fits 2010-2025 Rolls-Royce Ghost, N/A. Fits 2004-2025 Rolls-Royce Phantom, N/A. Fits 2020-2024 BMW X3, N/A. Fits 2017-2022 BMW M760i xDrive, N/A. Fits 2017-2022 BMW M760Li xDrive, N/A. Fits 2017-2021 Rolls-Royce Dawn, N/A. Fits 2014-2021 Rolls-Royce Wraith, N/A. Fits 2013-2019 BMW 650i Gran Coupe, N/A. Fits 2013-2019 BMW 650i xDrive Gran Coupe, N/A. Fits 2014-2019 BMW M6 Gran Coupe, N/A. Fits 2012-2018 BMW 650i, N/A. Fits 2006-2010 BMW 650i, N/A. Fits 2012-2018 BMW 650i xDrive, N/A. Fits 2012-2018 BMW M6, N/A. Fits 2010-2017 BMW 550i GT xDrive, N/A. Fits 2006-2016 BMW 550i, N/A. Fits 2011-2016 BMW 550i xDrive, N/A. Fits 2010-2015 BMW 550i GT, N/A. Fits 2006-2015 BMW 750i, N/A. Fits 2010-2015 BMW 750i xDrive, N/A. Fits 2006-2015 BMW 750Li, N/A. Fits 2010-2015 BMW 750Li xDrive, N/A. Fits 2010-2015 BMW 760Li, N/A. Fits 2003-2008 BMW 760Li, N/A. Fits 2004-2006 BMW 760i, N/A. Fits 2004-2005 BMW 545i, N/A. Fits 2004-2005 BMW 645Ci, N/A. Fits 2002-2005 BMW 745i, N/A. Fits 2002-2005 BMW 745Li, N/A.

This part fits 373 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersFuel TypeNotes
2027BMWM5—4.4LV8——
2027BMWM5 Touring—4.4LV8——
2026BMW760i xDrive—4.4LV8——
2026BMWM2—3.0LL6——
2026BMWM3—3.0LL6——
2026BMWM4—3.0LL6——
2026BMWM5—4.4LV8——
2026BMWM5 Touring—4.4LV8——
2026BMWX5—4.4LV8——
2026BMWX6—4.4LV8——
2026BMWX7—4.4LV8——
2026BMWXM—4.4LV8PLUG-IN HYBRID EV-GAS (PHEV)—
2026Rolls-RoyceCullinan—6.7LV12——
2026Rolls-RoyceGhost—6.7LV12——
2026Rolls-RoycePhantom—6.7LV12——
2025BMW760i xDrive—4.4LV8——
2025BMWAlpina XB7—4.4LV8——
2025BMWM2—3.0LL6——
2025BMWM3—3.0LL6——
2025BMWM4—3.0LL6——
2025BMWM5—4.4LV8——
2025BMWM5 Touring—4.4LV8——
2025BMWM8—4.4LV8——
2025BMWM8 Gran Coupe—4.4LV8——
2025BMWX4M3.0LL6——
2025BMWX5—4.4LV8——
2025BMWX6—4.4LV8——
2025BMWX7—4.4LV8——
2025BMWXM—4.4LV8PLUG-IN HYBRID EV-GAS (PHEV)—
2025Rolls-RoyceCullinan—6.7LV12——
2025Rolls-RoyceGhost—6.7LV12——
2025Rolls-RoycePhantom—6.7LV12——
2024BMW760i xDrive—4.4LV8——
2024BMWAlpina XB7—4.4LV8——
2024BMWM2—3.0LL6——
2024BMWM3—3.0LL6——
2024BMWM4—3.0LL6——
2024BMWM8—4.4LV8——
2024BMWM8 Gran Coupe—4.4LV8——
2024BMWX3M3.0LL6——
2024BMWX4M3.0LL6——
2024BMWX5—4.4LV8——
2024BMWX6—4.4LV8——
2024BMWX7—4.4LV8——
2024BMWXM—4.4LV8PLUG-IN HYBRID EV-GAS (PHEV)—
2024Rolls-RoyceCullinan—6.7LV12——
2024Rolls-RoyceGhost—6.7LV12——
2024Rolls-RoycePhantom—6.7LV12——
2023BMW760i xDrive—4.4LV8——
2023BMWAlpina XB7—4.4LV8——
2023BMWM2—3.0LL6——
2023BMWM3—3.0LL6——
2023BMWM4—3.0LL6——
2023BMWM5—4.4LV8——
2023BMWM8—4.4LV8——
2023BMWM8 Gran Coupe—4.4LV8——
2023BMWX3M3.0LL6——
2023BMWX4M3.0LL6——
2023BMWX5M4.4LV8——
2023BMWX6M4.4LV8——
2023BMWX7—4.4LV8——
2023BMWXM—4.4LV8PLUG-IN HYBRID EV-GAS (PHEV)—
2023Rolls-RoyceCullinan—6.7LV12——
2023Rolls-RoyceGhost—6.7LV12——
2023Rolls-RoycePhantom—6.7LV12——
2022BMWM3—3.0LL6——
2022BMWM4—3.0LL6——
2022BMWM5—4.4LV8——
2022BMWM760i xDrive—6.6LV12——
2022BMWM760Li xDrive—6.6LV12——
2022BMWM8—4.4LV8——
2022BMWM8 Gran Coupe—4.4LV8——
2022BMWX3—3.0LL6——
2022BMWX4—3.0LL6——
2022BMWX5M4.4LV8——
2022BMWX6M4.4LV8——
2022Rolls-RoyceCullinan—6.7LV12——
2022Rolls-RoyceGhost—6.7LV12——
2022Rolls-RoycePhantom—6.7LV12——
2021BMWM2—3.0LL6——
2021BMWM3—3.0LL6——
2021BMWM4—3.0LL6——
2021BMWM5—4.4LV8——
2021BMWM760i xDrive—6.6LV12——
2021BMWM760Li xDrive—6.6LV12——
2021BMWM8 Gran Coupe—4.4LV8——
2021BMWX3M3.0LL6——
2021BMWX3M Competition3.0LL6——
2021BMWX4M3.0LL6——
2021BMWX4M Competition3.0LL6——
2021BMWX5M4.4LV8——
2021BMWX5M Competition4.4LV8——
2021BMWX6M4.4LV8——
2021BMWX6M Competition4.4LV8——
2021Rolls-RoyceCullinan—6.7LV12——
2021Rolls-RoyceDawn—6.6LV12——
2021Rolls-RoyceGhost—6.7LV12——
2021Rolls-RoycePhantom—6.7LV12——
2021Rolls-RoyceWraith—6.6LV12——
2020BMWM2—3.0LL6——
2020BMWM4—3.0LL6——
2020BMWM5—4.4LV8——
2020BMWM760i xDrive—6.6LV12——
2020BMWM760Li xDrive—6.6LV12——
2020BMWM8—4.4LV8——
2020BMWM8 Gran Coupe—4.4LV8——
2020BMWX3M3.0LL6——
2020BMWX3M Competition3.0LL6——
2020BMWX4M3.0LL6——
2020BMWX4M Competition3.0LL6——
2020BMWX5M4.4LV8——
2020BMWX5M Competition4.4LV8——
2020BMWX6M4.4LV8——
2020BMWX6M Competition4.4LV8——
2020Rolls-RoyceCullinan—6.7LV12——
2020Rolls-RoyceDawn—6.6LV12——
2020Rolls-RoyceGhost—6.6LV12——
2020Rolls-RoycePhantom—6.7LV12——
2020Rolls-RoyceWraith—6.6LV12——
2019BMW650i Gran Coupe—4.4LV8——
2019BMW650i xDrive Gran Coupe—4.4LV8——
2019BMWAlpina B6 xDrive Gran Coupe—4.4LV8——
2019BMWM2—3.0LL6——
2019BMWM4—3.0LL6——
2019BMWM5—4.4LV8——
2019BMWM6 Gran Coupe—4.4LV8——
2019BMWM760i xDrive—6.6LV12——
2019BMWM760Li xDrive—6.6LV12——
2019BMWX6—4.4LV8——
2019Rolls-RoyceCullinan—6.7LV12——
2019Rolls-RoyceDawn—6.6LV12——
2019Rolls-RoyceGhost—6.6LV12——
2019Rolls-RoycePhantom—6.7LV12——
2019Rolls-RoyceWraith—6.6LV12——
2018BMW650i—4.4LV8——
2018BMW650i Gran Coupe—4.4LV8——
2018BMW650i xDrive—4.4LV8——
2018BMW650i xDrive Gran Coupe—4.4LV8——
2018BMWAlpina B6 xDrive Gran Coupe—4.4LV8——
2018BMWM3—3.0LL6——
2018BMWM4—3.0LL6——
2018BMWM5—4.4LV8——
2018BMWM6—4.4LV8——
2018BMWM6 Gran Coupe—4.4LV8——
2018BMWM760i xDrive—6.6LV12——
2018BMWM760Li xDrive—6.6LV12——
2018BMWX5—4.4LV8——
2018BMWX6—4.4LV8——
2018Rolls-RoyceDawn—6.6LV12——
2018Rolls-RoyceGhost—6.6LV12——
2018Rolls-RoycePhantom—6.7LV12——
2018Rolls-RoyceWraith—6.6LV12——
2017BMW550i GT xDrive—4.4LV8——
2017BMW650i—4.4LV8——
2017BMW650i Gran Coupe—4.4LV8——
2017BMW650i xDrive—4.4LV8——
2017BMW650i xDrive Gran Coupe—4.4LV8——
2017BMWAlpina B6 xDrive Gran Coupe—4.4LV8——
2017BMWM3—3.0LL6——
2017BMWM4—3.0LL6——
2017BMWM6—4.4LV8——
2017BMWM6 Gran Coupe—4.4LV8——
2017BMWM760i xDrive—6.6LV12——
2017BMWM760Li xDrive—6.6LV12——
2017BMWX5—4.4LV8——
2017BMWX6—4.4LV8——
2017Rolls-RoyceDawn—6.6LV12——
2017Rolls-RoyceGhost—6.6LV12——
2017Rolls-RoycePhantom—6.7LV12——
2017Rolls-RoyceWraith—6.6LV12——
2016BMW550i—4.4LV8——
2016BMW550i GT xDrive—4.4LV8——
2016BMW550i xDrive—4.4LV8——
2016BMW650i—4.4LV8——
2016BMW650i Gran Coupe—4.4LV8——
2016BMW650i xDrive—4.4LV8——
2016BMW650i xDrive Gran Coupe—4.4LV8——
2016BMWAlpina B6 Gran Coupe—4.4LV8——
2016BMWAlpina B6 xDrive Gran Coupe—4.4LV8——
2016BMWM3—3.0LL6——
2016BMWM4—3.0LL6——
2016BMWM5—4.4LV8——
2016BMWM6—4.4LV8——
2016BMWM6 Gran Coupe—4.4LV8——
2016BMWX5—4.4LV8——
2016BMWX6—4.4LV8——
2016Rolls-RoyceGhost—6.6LV12——
2016Rolls-RoycePhantom—6.7LV12——
2016Rolls-RoyceWraith—6.6LV12——
2015BMW550i—4.4LV8——
2015BMW550i GT—4.4LV8——
2015BMW550i GT xDrive—4.4LV8——
2015BMW550i xDrive—4.4LV8——
2015BMW650i—4.4LV8——
2015BMW650i Gran Coupe—4.4LV8——
2015BMW650i xDrive—4.4LV8——
2015BMW650i xDrive Gran Coupe—4.4LV8——
2015BMW750i—4.4LV8——
2015BMW750i xDrive—4.4LV8——
2015BMW750Li—4.4LV8——
2015BMW750Li xDrive—4.4LV8——
2015BMW760Li—6.0LV12——
2015BMWAlpina B6 xDrive Gran Coupe—4.4LV8——
2015BMWAlpina B7—4.4LV8——
2015BMWAlpina B7 xDrive—4.4LV8——
2015BMWAlpina B7L—4.4LV8——
2015BMWAlpina B7L xDrive—4.4LV8——
2015BMWM3—3.0LL6——
2015BMWM4—3.0LL6——
2015BMWM5—4.4LV8——
2015BMWM6—4.4LV8——
2015BMWM6 Gran Coupe—4.4LV8——
2015BMWX5—4.4LV8——
2015BMWX6—4.4LV8——
2015Rolls-RoyceGhost—6.6LV12——
2015Rolls-RoycePhantom—6.7LV12——
2015Rolls-RoyceWraith—6.6LV12——
2014BMW550i—4.4LV8——
2014BMW550i GT—4.4LV8——
2014BMW550i GT xDrive—4.4LV8——
2014BMW550i xDrive—4.4LV8——
2014BMW650i—4.4LV8——
2014BMW650i Gran Coupe—4.4LV8——
2014BMW650i xDrive—4.4LV8——
2014BMW650i xDrive Gran Coupe—4.4LV8——
2014BMW750i—4.4LV8——
2014BMW750i xDrive—4.4LV8——
2014BMW750Li—4.4LV8——
2014BMW750Li xDrive—4.4LV8——
2014BMW760Li—6.0LV12——
2014BMWAlpina B7—4.4LV8——
2014BMWAlpina B7 xDrive—4.4LV8——
2014BMWAlpina B7L—4.4LV8——
2014BMWAlpina B7L xDrive—4.4LV8——
2014BMWM5—4.4LV8——
2014BMWM6—4.4LV8——
2014BMWM6 Gran Coupe—4.4LV8——
2014BMWX5—4.4LV8——
2014BMWX6—4.4LV8——
2014Rolls-RoyceGhost—6.6LV12——
2014Rolls-RoycePhantom—6.7LV12——
2014Rolls-RoyceWraith—6.6LV12——
2013BMW550i—4.4LV8——
2013BMW550i GT—4.4LV8——
2013BMW550i GT xDrive—4.4LV8——
2013BMW550i xDrive—4.4LV8——
2013BMW650i—4.4LV8——
2013BMW650i Gran Coupe—4.4LV8——
2013BMW650i xDrive—4.4LV8——
2013BMW650i xDrive Gran Coupe—4.4LV8——
2013BMW750i—4.4LV8——
2013BMW750i xDrive—4.4LV8——
2013BMW750Li—4.4LV8——
2013BMW750Li xDrive—4.4LV8——
2013BMW760Li—6.0LV12——
2013BMWAlpina B7—4.4LV8——
2013BMWAlpina B7 xDrive—4.4LV8——
2013BMWAlpina B7L—4.4LV8——
2013BMWAlpina B7L xDrive—4.4LV8——
2013BMWM5—4.4LV8——
2013BMWM6—4.4LV8——
2013BMWX5—4.4LV8——
2013BMWX6—4.4LV8——
2013Rolls-RoyceGhost—6.6LV12——
2013Rolls-RoycePhantom—6.7LV12——
2012BMW550i—4.4LV8——
2012BMW550i GT—4.4LV8——
2012BMW550i GT xDrive—4.4LV8——
2012BMW550i xDrive—4.4LV8——
2012BMW650i—4.4LV8——
2012BMW650i xDrive—4.4LV8——
2012BMW750i—4.4LV8——
2012BMW750i xDrive—4.4LV8——
2012BMW750Li—4.4LV8——
2012BMW750Li xDrive—4.4LV8——
2012BMW760Li—6.0LV12——
2012BMWAlpina B7—4.4LV8——
2012BMWAlpina B7 xDrive—4.4LV8——
2012BMWAlpina B7L—4.4LV8——
2012BMWAlpina B7L xDrive—4.4LV8——
2012BMWM5—4.4LV8——
2012BMWM6—4.4LV8——
2012BMWX5—4.4LV8——
2012BMWX6—4.4LV8——
2012Rolls-RoyceGhost—6.6LV12——
2012Rolls-RoycePhantom—6.7LV12——
2011BMW550i—4.4LV8——
2011BMW550i GT—4.4LV8——
2011BMW550i GT xDrive—4.4LV8——
2011BMW550i xDrive—4.4LV8——
2011BMW750i—4.4LV8——
2011BMW750i xDrive—4.4LV8——
2011BMW750Li—4.4LV8——
2011BMW750Li xDrive—4.4LV8——
2011BMW760Li—6.0LV12——
2011BMWAlpina B7—4.4LV8——
2011BMWAlpina B7 xDrive—4.4LV8——
2011BMWAlpina B7L—4.4LV8——
2011BMWAlpina B7L xDrive—4.4LV8——
2011BMWX5—4.4LV8——
2011BMWX6—4.4LV8——
2011Rolls-RoyceGhost—6.6LV12——
2011Rolls-RoycePhantom—6.7LV12——
2010BMW550i—4.8LV8——
2010BMW550i GT—4.4LV8——
2010BMW550i GT xDrive—4.4LV8——
2010BMW650i—4.8LV8——
2010BMW750i—4.4LV8——
2010BMW750i xDrive—4.4LV8——
2010BMW750Li—4.4LV8——
2010BMW750Li xDrive—4.4LV8——
2010BMW760Li—6.0LV12——
2010BMWX5—4.4LV8——
2010BMWX5—4.8LV8——
2010BMWX6—4.4LV8——
2010Rolls-RoyceGhost—6.6LV12——
2010Rolls-RoycePhantom—6.7LV12——
2009BMW550i—4.8LV8——
2009BMW650i—4.8LV8——
2009BMW750i—4.4LV8——
2009BMW750Li—4.4LV8——
2009BMWX5—4.8LV8——
2009BMWX6—4.4LV8——
2009Rolls-RoycePhantom—6.7LV12——
2008BMW550i—4.8LV8——
2008BMW650i—4.8LV8——
2008BMW750i—4.8LV8——
2008BMW750Li—4.8LV8——
2008BMW760Li—6.0LV12——
2008BMWAlpina B7—4.4LV8——
2008BMWX5—4.8LV8——
2008BMWX6—4.4LV8——
2008Rolls-RoycePhantom—6.7LV12——
2007BMW550i—4.8LV8——
2007BMW650i—4.8LV8——
2007BMW750i—4.8LV8——
2007BMW750Li—4.8LV8——
2007BMW760Li—6.0LV12——
2007BMWAlpina B7—4.4LV8——
2007BMWX5—4.8LV8——
2007Rolls-RoycePhantom—6.7LV12——
2006BMW550i—4.8LV8——
2006BMW650i—4.8LV8——
2006BMW750i—4.8LV8——
2006BMW750Li—4.8LV8——
2006BMW760i—6.0LV12——
2006BMW760Li—6.0LV12——
2006BMWX5—4.4LV8——
2006BMWX5—4.8LV8——
2006Rolls-RoycePhantom—6.7LV12——
2005BMW545i—4.4LV8——
2005BMW645Ci—4.4LV8——
2005BMW745i—4.4LV8——
2005BMW745Li—4.4LV8——
2005BMW760i—6.0LV12——
2005BMW760Li—6.0LV12——
2005BMWX5—4.4LV8——
2005BMWX5—4.8LV8——
2005Rolls-RoycePhantom—6.7LV12——
2004BMW545i—4.4LV8——
2004BMW645Ci—4.4LV8——
2004BMW745i—4.4LV8——
2004BMW745Li—4.4LV8——
2004BMW760i—6.0LV12——
2004BMW760Li—6.0LV12——
2004BMWX5—4.4LV8——
2004BMWX5—4.8LV8——
2004Rolls-RoycePhantom—6.7LV12——
2003BMW745i—4.4LV8——
2003BMW745Li—4.4LV8——
2003BMW760Li—6.0LV12——
2002BMW745i—4.4LV8——
2002BMW745Li—4.4LV8——
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
115303044251153750277911537586885