Coolant Expansion Tank

Product Details

On the track or on the street, the S55 engine demands optimal thermal management. Unfortunately, the factory plastic overflow tank is a notorious weak point, eventually brittle-cracking at the molded seams after thousands of aggressive heat cycles. This URO Parts Coolant Expansion Tank is a straightforward, budget-conscious alternative to the costly factory unit, designed to handle the rigorous fluid expansion and pressure demands of your M car. Replace your cloudy, leaking, or aged reservoir with this fresh tank to maintain a reliable cooling system and keep your M2 Competition, M3, or M4 running hard without the threat of unexpected coolant loss.

Key Features

• Engineered to match the critical pressure and fluid expansion capabilities of the stock unit

• Prevents pressure drops that lower the coolant’s effective boiling point

• Perfect for replacing yellowed, brittle, or leaking factory tanks during a cooling overhaul

• Cost-effective alternative to the Genuine BMW part without compromising fitment

Specifications

• Brand: URO Parts

• Part Number: 17132284600

• Application: Engine Cooling Circuit (High Temp)

• Material: Composite Plastic

• Fitment: BMW F80 M3, F82/F83 M4, F87 M2 Competition (S55 3.0L Engines)

Prop 65 Warning

Product Q&A

Lifetime Replacement

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