This is the heart of your cooling system. These necks are prone to crack every 60,000-80,000 miles.This is a good idea to change out every 80,000 miles or so as they can be cracked and frayed from the extreme heat the engine gives out.
This is the heart of your cooling system. These necks are prone to crack every 60,000-80,000 miles.This is a good idea to change out every 80,000 miles or so as they can be cracked and frayed from the extreme heat the engine gives out.
Additional Information
| Part Type | OEM Replacement Part |
|---|---|
| Sold As | Single Expansion Tank |
| OEM Part Number Reference | All BMW E46 3 Series, All Except M3 (1999-05) | 17 11 7 573 781 |
Model Fitment
Specifically made for BMW E46 (99-06 3 Series), including:1999-2005 BMW E46 3 Series Sedan 323i, 325i, 325xi, 328i, 330i, 330xi
2000-2006 BMW E46 3 Series Coupe 323Ci, 325Ci, 328Ci & 330Ci
Unsure if this will fit your vehicle? Ask us!










