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The factory E46 thermostat housing is a combined unit featuring a plastic housing and a built in thermostat that you cannot replace separately. These plastic all-in-one units are commonly know to crack or fail causing a headache. This unit not only converts your plastic housing into a billet aluminum unit that will not crack but also swaps out the integrated thermostat for a replaceable thermostat. The ability to swap out thermostats separately from the whole housing opens up doors to changing thermostats to different temperature ratings based on your application while also providing lower maintenance costs. The days of buying full replacement thermostats are over!
The billet housing is designed to be utilized with E46 M3 upper and lower radiator hoses and also features -16 ORB connections for custom radiator hoses. A supreme upgrade from the factory and aftermarket plastic units this thermostat housing kit can be used for the smart daily driver or the track hero who wants to ensure the durability of their cooling system.
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Replacement Thermostat P#: 11537511580, 11537511083S1, 11537511083, 11531713040
Eurosport Performance does not have live inventory. Although we aim shipping out not stocked products within 5 business days, supply constraints, import proceedures and product availability can cause additionnal delays. Please refer to the table below for more accurate details.
In stock - We have the item in stock at our warehouse and you can expect fulfillment within 24 hours.
Usually ships within 5-7 business days - We must import this product from our supplier or the manufacturer. Standard import proceedures take between 5-7 business days and you can expect fulfillment within 8 business days.
Back ordered - This product is out of stock at our warehouse with units in transit from our supplier. Fulfillment can vary.
If you wish to have a more accurate ETA, please send us a message at info@es-performance.com and we will respond within 24-48h.
12 Months
All products sold by Eurosport Performance are warrantied against manufacturing defects according to the manufacturer's warranty policy*. Warranty does not cover abuse, misuse, damages caused from improper manipulation, normal wear and tear, improper installation, or damages resulting from racing. Warranties only apply to the original owner. If a product is found defective, the customer will receive, at the discretion of Eurosport Performance, a replacement part at no extra cost.
* Conditions may apply. Please visit our Refund Policy or contact us at info@es-performance.com
