KAKO BMW Thermostat Housing Assembly | OE Replacement for 1999-2006 E46/E39/X5/X3/Z3/Z4 (11537509227 11531437040 11531436823 11530139877)
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Description
xReliable thermostat housing for BMWs
The KAKO thermostat housing assembly is designed to respond to changing driving conditions, helping regulate coolant flow and maintain steady engine temperature. Built with high-quality materials, it emphasizes durability and solid sealing to support consistent performance under varying loads and climates.
This kit is crafted for straightforward installation and direct replacement on a wide range of BMW models. It aligns with OEM reference numbers to simplify cross-checking and fitment, making it a practical choice for DIY projects or professional service alike.
Key benefits
- Excellent Performance: Premium materials enhance durability and tolerance, aiding reliable operation and reducing the chance of leaks from thermostat housings.
- Wide Compatibility: Designed to work with many BMW models and engine sizes from 2.5L to 3.0L, spanning 1999–2006 applications.
- Direct Replacement: Easy swap with original equipment numbers for a seamless install and restored coolant flow.
- High Sealing: Tight seals help prevent coolant leaks and maintain steady engine temperature during drives.
- Quality Service: 60-day support for questions or concerns after purchase.
OEM numbers and cross-reference
Replacement OEM numbers include 11531437040, 11531436823, 11537509227, 11530139877. Additional cross-reference options include related identifiers listed in the product details to assist with matching parts.
Real-world use scenarios
Whether navigating city traffic, cruising on the highway, or climbing inclines with a loaded vehicle, maintaining stable engine temperature supports smoother operation and reduces the risk of thermal-related interruptions. While outcomes vary by vehicle condition and driving style, this thermostat housing is intended to help maintain consistent coolant flow and reduce temperature fluctuations.
What you get
- Thermostat housing assembly built for durability
- Direct-fit replacement for a wide set of BMW models
- Clear OEM cross-reference for easy sourcing
- Simple installation with effective sealing
FAQ
Q: Which BMW models and engines is the KAKO thermostat housing compatible with?
A: Fits 1999-2006 BMWs including 325i/325xi/330i/525i/530i, X3/X5, Z3/Z4 with 2.5L to 3.0L engines.
Q: Is installation support provided after purchase?
A: Yes. It is designed for direct replacement, with 60-day support for questions or installation guidance.
Shipping & Return
xReturns 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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