HomeBrake > Brake HydraulicsMPA Electrical NM55473 Brake Master Cylinder
Part #: NM55473

MPA Electrical NM55473 Brake Master Cylinder

New with front disc brakes
⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦New with front disc brakes
🚗Fitment: BMW, 323i, 328Ci, and 328i
🔄Easy Returns — Return within 60 days for a full refund
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MPA Electrical NM55473 Brake Master Cylinder
BrandMPA Electrical
Part NumberNM55473
PositionNew with front disc brakes
Mounting Hardware IncludedNo
Grade TypeStandard replacement
Gasket Or Seal IncludedYes
Mounting Hole Quantity2
Master Cylinder Bore Diameter0.874
Brake Booster IncludedNo
Master Cylinder Cap IncludedNo
Master Cylinder MaterialAluminum
Push Rod IncludedNo
Reservoir IncludedNo
Sensor IncludedNo
Mounting Hole Diameter0.352
Mounting Bracket IncludedNo
Brake Pressure Switch(s) IncludedNo
Fluid TypeDot 4
Product ConditionNew

This part fits 3 vehicles. Search below:

YearMakeModelBody TypePositionNotes
2000BMW328CiN/ANew with front disc brakes
2000BMW328iN/ANew with front disc brakes
1999BMW323iSedanN/ANew with front disc brakes

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3431116558434316750642

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.