Mardarth electric water pump with thermostat - front view for BMW cooling system replacement.
Mardarth electric water pump with thermostat - side view shows compact fit for BMWs.
Mardarth water pump thermostat installed in BMW engine bay for reliable cooling.
Mardarth thermostat assembly close-up showing precise control for engine cooling.
Mardarth water pump package kit ready-to-install for DIY repairs.
Mardarth BMW cooling hose connectors for easy integration with cooling system.
Mardarth durability testing badge indicating proven performance.
Mardarth eco packaging with recyclable materials for sustainable shipping.
Mardarth electric water pump with thermostat - front view for BMW cooling system replacement.
Mardarth electric water pump with thermostat - side view shows compact fit for BMWs.
Mardarth water pump thermostat installed in BMW engine bay for reliable cooling.
Mardarth thermostat assembly close-up showing precise control for engine cooling.
Mardarth water pump package kit ready-to-install for DIY repairs.
Mardarth BMW cooling hose connectors for easy integration with cooling system.
Mardarth durability testing badge indicating proven performance.
Mardarth eco packaging with recyclable materials for sustainable shipping.

Mardarth Electric Water Pump with Thermostat for BMW X3 X5 328i 528i - Replaces OE 11517546994

Upgrade your BMW's cooling system with the Mardarth Electric Engine Water Pump with Thermostat. This compact, integrated...
Vendor: Mardarth
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£185.29
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Mardarth electric water pump with thermostat - front view for BMW cooling system replacement.

Mardarth Electric Water Pump with Thermostat for BMW X3 X5 328i 528i - Replaces OE 11517546994

£185.29
Mardarth electric water pump with thermostat - front view for BMW cooling system replacement.
Mardarth electric water pump with thermostat - side view shows compact fit for BMWs.
Mardarth water pump thermostat installed in BMW engine bay for reliable cooling.
Mardarth thermostat assembly close-up showing precise control for engine cooling.
Mardarth water pump package kit ready-to-install for DIY repairs.
Mardarth BMW cooling hose connectors for easy integration with cooling system.
Mardarth durability testing badge indicating proven performance.
Mardarth eco packaging with recyclable materials for sustainable shipping.

Mardarth Electric Water Pump with Thermostat for BMW X3 X5 328i 528i - Replaces OE 11517546994

£185.29
Description
Description
x

Upgrade your BMW's cooling system with the Mardarth Electric Engine Water Pump with Thermostat. This compact, integrated unit combines a reliable water pump and thermostat designed to fit a broad range of BMW models, delivering steady coolant flow and responsive thermo regulation. Expect smoother operation, quieter performance, and dependable cooling during everyday driving and longer trips alike.

Why choose an electric pump with thermostat

Electric pumps deliver fast, consistent coolant circulation and easier control of engine temperature. The built-in thermostat helps maintain steady temperatures, supporting efficient warm-ups and effective cooling when the engine runs hot. This design can simplify upgrades by consolidating parts into a single, easy-to-install package.

  • Integrated water pump and thermostat for a streamlined upgrade
  • Designed for reliable direct replacement on compatible BMW models
  • Engineered to maintain steady flow across various RPMs

What’s included and compatibility

The kit includes one Electric Engine Water Pump and one Thermostat. It replaces several OE references and corresponds to a wide list of BMW models and years, making it a versatile upgrade for owners and technicians.

  • 128i (2008–2011) 3.0L
  • 325i/325xi (2006, 2.5L or 3.0L)
  • 328i (2007–2012, 3.0L; 2012 2.0L)
  • 328i XDrive / 328i XDrive (2009–2011)
  • 330i/330xi (2006, 3.0L)
  • X3 (2007–2011, 2.5L)
  • X5 (2006–2011, 2.5L–3.0L)
  • Z4 (2006–2008, 3.0L; 2008–2011, 3.2L)

Real-life use scenarios

  • Daily commuting: maintains stable engine temperature in stop-and-go traffic
  • Highway driving: supports consistent cooling during sustained RPMs
  • DIY repairs: compact kit with straightforward installation for home garages

Quality and what you might notice

  • Engineered and tested for reliable performance and safety
  • Direct replacement helps reduce the number of separate components
  • Designed to align with the original mounting points and hose connections

Who it’s for — BMW owners who want a dependable cooling upgrade, DIY enthusiasts, and auto shops servicing compatible models. This kit aims to support steady operation and may offer benefits in various driving conditions; results can vary by vehicle and usage.

FAQ

Q: Is this pump compatible with my BMW X3 or X5 model?

A: It fits many BMWs listed in the description, including X3 and X5 from 2006–2011; verify year and engine to be sure.

Q: What’s included in the package?

A: The package includes one electric water pump and one thermostat for a complete replacement.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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