OUSIMY

OUSIMY Electric Water Pump & Thermostat Assembly for BMW 328i 428i 528i X1 X3 N20 2012-2018 | OE 11517604027

Name: OUSIMY Electric Water Pump & Thermostat Assembly for BMW 328i 428i 528i X1 X3 N20 2012-2018 | OE 11517604027
Brand: OUSIMY
SKU: QMDZSB002-N52-JWQ002
Price: 119.99 USD
Availability: InStock

In stock

4.67 15 reviews

Usually ships within 24 hours

$119.99

Limited time offer

Product details

Vendor OUSIMY
SKU QMDZSB002-N52-JWQ002

Fast & Reliable Shipping：

We understand that vehicle repairs cannot wait.

All OUSIMY orders are processed within 24 business hours after payment confirmation.

Shipping Options:

• Standard Shipping:
Delivery usually takes 7-15 business days depending on destination.

• Expedited Shipping:
Faster delivery options are available for customers who need their parts sooner.

• Tracking Information:
Once your order ships, tracking details will be provided by email.

Please make sure your shipping address is correct before completing your order.

Warranty Policy:

At OUSIMY, we stand behind the quality and reliability of our automotive parts.

All products include a 3-Year Limited Warranty.

The warranty covers:
• Manufacturing defects
• Product quality issues
• Failures under normal use conditions

If you experience any product issue, please contact our support team. We will provide assistance including troubleshooting, replacement, or other solutions.

Warranty does not cover:
• Incorrect installation
• Damage caused by accidents
• Improper use
• Normal wear and tear

30-Day Money-Back Guarantee:

Your satisfaction is important to us.

If you are not completely satisfied with your purchase, you can request a return within 30 days after receiving your order.

Return requirements:

• Product must be unused
• Product must be in original condition
• Original packaging should be included

If you receive an incorrect or defective item, please contact us first. Our team will help resolve the issue as quickly as possible.

Vehicle Fitment & Technical Support:

Not sure if this part fits your vehicle?

Our automotive support team is here to help you find the correct replacement part before placing your order.

We can assist with:

✓ Vehicle compatibility confirmation
✓ OEM / Part number verification
✓ Product selection assistance
✓ Installation questions

To help us confirm the correct fitment, please provide:

• Vehicle Make & Model
• Year
• Engine Type
• OEM Part Number (if available)
• VIN Number (optional)

Need help choosing the right part?

Click the chat icon in the bottom right corner and send us your vehicle information. Our team will help verify compatibility and recommend the correct replacement solution.

OE Part Number: 11517604027, 11537549308, 11518635089

Specification	Details
Condition	New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item was packaged by the manufacturer in non-retail packaging,
OE Spec or Performance/Custom	OE Spec
Type	Electric Water Pump, Coolant Thermostat
Manufacturer Warranty	2 Year
UPC	Does not apply
Brand	autopart
Other Part Number	11518635089
Interchange Part Number	11518635089, 11518625974, 11517604027, 817 568 594, 81 625 092, 817 517
Manufacturer Part Number	11517604027

This complete electric water pump and thermostat assembly is a direct factory replacement designed for BMW N20 turbocharged engine models, including the 328i, 428i, 528i, X1, and X3. Fully calibrated to match original cooling system parameters, this integrated cooling kit restores precise engine temperature control and resolves common OEM cooling system failures for stable daily vehicle operation.

Basic Product Details Constructed with high-temperature resistant engineering plastic housing, wear-resistant internal impeller, and premium sealed motor components, this electric water pump comes pre-assembled with a matched thermostat and sealing gaskets. Mounted at the engine cooling circulation system, the integrated unit provides active electronic water circulation and accurate temperature regulation. This cooling assembly fits all BMW N20 engine vehicles manufactured between 2012 and 2018, requiring no extra programming or modification after installation.

Core Upgrade Advantages Upgraded internal motor winding and reinforced sealing structure effectively improve the original factory weaknesses of weak heat resistance and easy motor burnout. Compared with stock water pumps that suffer from slow response, insufficient flow rate, and easy coolant leakage after mileage accumulation, this upgraded assembly maintains stable electronic cooling efficiency under high-load and high-temperature conditions. Pre-assembled thermostat and perfect OEM-sized mounting ports ensure true bolt-on installation, eliminating the trouble of separate part matching and calibration for repair shops and DIY installers.

Solves Common Owner Pain Points Factory BMW N20 electric water pumps and thermostats have prominent aging defects. Worn OEM units commonly cause engine overheating, unstable water temperature fluctuations, poor heater heat output, and coolant leakage. Failed cooling components also lead to sudden engine temperature warning lights, reduced power output, and frequent system alarms. Many car owners encounter repeated replacement and recurring cooling faults due to inferior original component durability. This upgraded assembly completely fixes these common N20 cooling system issues.

Compatible OBD / VCDS Fault Codes Directly resolves mainstream cooling system fault codes triggered by failed water pump and thermostat, including P0597, P0598, P0128, which correspond to thermostat heater circuit malfunctions, cooling pump regulation errors, and engine coolant temperature deviation faults for BMW N20 engines.

Logistics & Shipping Benefits We provide free global shipping for all orders. All electric water pump and thermostat assemblies are stocked in overseas warehouses, with orders processed and shipped within 24 business hours after payment confirmation to shorten your vehicle maintenance cycle.

Warranty & Installation Support Every OUSIMY electric cooling pump assembly comes with a 2-year manufacturer warranty. Adopting a standard direct replacement structure, it supports friendly DIY installation. Complete accessories and accurate reserved mounting holes allow users to finish replacement with basic hand tools without professional remodeling.

Full Fitment Vehicle List
BMW 3 Series 328i (N20 Engine | 2012–2018)
BMW 4 Series 428i (N20 Engine | 2014–2018)
BMW 5 Series 528i (N20 Engine | 2012–2018)
BMW X1 (N20 Engine | 2013–2018)
BMW X3 (N20 Engine | 2012–2018)
Fits all gasoline N20 turbo engine variants for the above model years

We appreciate your business and are committed to providing you with exceptional service and timely delivery. Please review the shipping information below for your order.

Order Processing Time:

Orders are usually processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days.

Shipping Methods:

Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)

Packaging:

Rest assured that all items will be securely and safely packaged to prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.

Shipping Rates:

Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.

Order Tracking:

Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your account.

International Shipping:

We ship worldwide! Please note that international shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.

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5 stars: 10 (67%)
4 stars: 5 (33%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

Works well for daily driving

I installed this replacement pump on my BMW X3. No issues after several weeks of use.

Satisfied with purchase

The part quality is good and the vehicle has been running normally after installation.

Highly recommended for BMW owners

My mechanic installed this on my BMW 328i and confirmed the fit was correct. The engine temperature is stable now.

Thanks for choosing OUSIMY. We appreciate your feedback!

Good replacement option

The pump works correctly and the thermostat responds normally. A good choice for N20 engine repairs.

Fast shipping and correct part

Received the package quickly and confirmed the OE number before installation. Everything matched.

Saved money on repairs

This was much cheaper than buying from BMW. Installed on my 2015 328i and it works well.

Good quality replacement

The water pump assembly arrived well packaged. The connectors and mounting points matched perfectly.

BMW cooling system repaired

My X1 had coolant problems caused by the original pump. This replacement fixed the issue and the engine runs cooler.

Thank you Kevin! Happy to hear your BMW is running properly again.

Good product but installation is not easy

The part itself is good, but replacing the electric pump requires some mechanical experience.

Works like original

My 2013 BMW 528i needed a replacement water pump. This unit works properly with no warning lights.

Good aftermarket cooling part

The pump looks well made and the thermostat included was convenient. Saved me time during installation.

Fixed overheating problem

My BMW X3 was overheating due to a bad water pump. After replacement, coolant temperature stays normal again.

We appreciate your review and support.

Exact fit for N20 engine

The OE number matched my original water pump. Installation was straightforward and everything works normally now.

Great value compared with OEM

The dealer wanted much more for the same repair. This pump and thermostat assembly works great on my 2014 BMW 428i.

Perfect replacement water pump for BMW

My BMW 328i had a failing electric water pump. This replacement fit perfectly and solved my overheating issue.

Thank you for your feedback! Glad we could help fix your cooling system problem.

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OUSIMY Electric Water Pump & Thermostat Assembly for BMW 328i 428i 528i X1 X3 N20 2012-2018 | OE 11517604027

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