18-25 BMW F98 X4M X4 X3 X3M Brake Fluid Expansion Tank 34336871185 OEM

This BMW F98 X4M X4 X3 X3M Brake Fluid Expansion Tank came off a 2018–2025 BMW F98 X4M we dismantled in Kaufman, Texas. The donor car had 55k miles on the clock. Every photo is of this exact part, taken after it was pulled and cleaned.

The expansion tank holds the coolant reserve and its level sensor and cap set the system pressure. Cracks at the seams are a common failure.

Fits: 18-25 BMW F98

Not sure it is the right part? Send us your VIN and we will confirm fitment before you order. It ships from Texas in 1–2 business days and is covered by our 90-day warranty with hassle-free returns.

Supplying a shop or dismantler? We’re a Kaufman, TX yard focused on genuine used OEM BMW parts — real-time inventory, photos of the exact item, and VIN or fitment checks before you order.

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