Shop OEM BMW Part # 34336873409 (34-33-6-873-409, 34336857068, 34336867645). Booster. Brake. Gasket. Seal. Power. Brake Power Booster Unit - Repair or Replace If you have a brake pedal that is suddenly stiff or

Power Brake Booster Gasket. Power Brake Booster Seal.

Power Brake Booster GasketPower Brake Booster Seal

Fits i3, i3s, i8

Brake Power Booster Unit - Repair or Replace
If you have a brake pedal that is suddenly stiff or you hear a whistling noise when you step on your brakes—especially when you're stopped—the culprit may be a failed brake booster. Our technicians can easily diagnose a possible brake booster failure in your .