BMW Aluminum Coolant Expansion Tank - Moroso 63850

Upgrade your BMW M3's cooling system with the robust Moroso 63850 Aluminum Coolant Expansion Tank. Designed as a direct replacement for the prone-to-failure plastic OEM tank, this high-performance reservoir offers superior durability and reliability.

Crafted from premium aluminum, the Moroso expansion tank withstands extreme temperatures and pressures, preventing common issues like cracking and leaks often found in stock units. This upgrade ensures your S65 V8 engine maintains optimal coolant levels and system integrity, crucial for both daily driving and demanding track conditions.

Key features include:
* **Enhanced Durability:** Heavy-duty aluminum construction outlasts OEM plastic tanks.
* **Direct Fit:** Engineered for a seamless installation, utilizing existing mounting points.
* **Improved Reliability:** Provides a more stable and secure coolant reservoir, reducing the risk of system failures.

**Fitment:**
This Moroso 63850 Coolant Expansion Tank is compatible with BMW M3 models equipped with the 4.0L V8 S65B40A engine from 2008-2013, covering all E90 Sedan, E92 Coupe, and E93 Convertible variants.

**Part Numbers:**
* Moroso Part Number: MOR-63850
* Replaces OE Part Number: 17112283500

Invest in the longevity and performance of your M3 with this essential cooling system upgrade.