Billet Aluminum Expansion Tank - E39 M5

Billet Aluminum Expansion Tank with OE Level Sensor

The anticipation is over. Euro Power Motorsports, in collaboration with EAE, proudly presents the revolutionary BMW E39 M5 Billet Aluminum Coolant Expansion Tank. EAE Motorsports has meticulously designed, prototyped, and manufactured this essential component for the BMW E39 M5. The original plastic tanks are notorious for becoming brittle and cracking over time, leading to a host of issues — particularly on the track. When these tanks fail, they usher in costly repairs and inconvenient headaches, not to mention the unsightly discoloration that transforms once-clear tanks into an unpleasant yellow hue every time you pop the hood.

With EAE Motorsports' Coolant Expansion Tank, bid farewell to cracks, leaks, and aesthetic woes. Crafted from robust 6061 T6 Billet Aluminum, this tank is engineered to endure a lifetime of use, whether you're cruising the streets or dominating the track. Plus, EAE stands by their craftsmanship with a Lifetime Warranty. That means you'll never have to worry about replacing your expansion tank again.

This high-quality part replaces BMW part number 17112229114 (17-11-2-229-114) for all E39 M5 models.

Note: Lead time for the sight glass option is approximately 2 weeks.