HomeBrake > Brake HydraulicsMPA Electrical M52293 Brake Master Cylinder
Part #: M52293

MPA Electrical M52293 Brake Master Cylinder

Reman with front disc brakes
10 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Reman with front disc brakes
Fitment: BMW, 320i, 325e, and 325es
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Brake Master Cylinder for BMW 320i, 325e, 325es

Restore firm, consistent brake pedal feel with this remanufactured brake master cylinder from MPA Electrical. Built for BMW 320i, 325e, and 325es applications with front disc brakes, part number M52293 is a standard replacement for vehicles that need dependable hydraulic brake pressure.

Key Features

  • Remanufactured brake master cylinder for brake hydraulic service
  • Fits 1977-1983 BMW 320i, 1984-1985 BMW 325e, and 1987 BMW 325es with front disc brakes
  • Cast iron master cylinder body for OE-style fit and function
  • 0.8125 in. bore diameter
  • Gasket or seal included
  • Two mounting holes with 0.350 in. mounting hole diameter
  • Standard replacement grade
  • Brake booster, reservoir, cap, push rod, sensor, and mounting hardware not included

Product Details

MPA Electrical reman with front disc brakes line focuses on brake hydraulic components restored to OE specifications through testing and controlled remanufacturing processes. This brake master cylinder is engineered to return hydraulic performance to the system, helping maintain proper pedal response and brake pressure delivery on BMW 320i, BMW 325e, and BMW 325es models. Part number M52293 cross-references 34301151850 and 34311154405 for the same application.

What It Helps Solve

  • Soft or spongy brake pedal feel
  • Internal hydraulic leakage in the master cylinder
  • Loss of brake pressure during braking
  • Uneven or inconsistent pedal response
  • Brake system performance issues on front disc brake BMW applications

Installation Notes and Tips

Verify vehicle fitment by year, model, and front disc brake configuration before installation. Transfer or source the reservoir, cap, push rod, and brake booster components separately if needed, since they are not included. Bleed the brake system thoroughly after installation and inspect all hydraulic connections for leaks. Confirm the bore size and mounting points match the original unit before assembly.

Quality Assurance

Each MPA Electrical remanufactured master cylinder is tested against OE specifications using proprietary processes and strict protocols to help ensure consistent braking performance out of the box. M52293 is built as a standard replacement brake hydraulic component for BMW 320i, 325e, and 325es front disc brake applications.

BrandMPA Electrical
Part NumberM52293
PositionReman with front disc brakes
Mounting Hardware IncludedNo
Grade TypeStandard replacement
Gasket Or Seal IncludedYes
Mounting Hole Quantity2
Master Cylinder Bore Diameter0.8125
Brake Booster IncludedNo
Master Cylinder Cap IncludedNo
Master Cylinder MaterialCast iron
Push Rod IncludedNo
Reservoir IncludedNo
Sensor IncludedNo
Mounting Hole Diameter0.350
Mounting Bracket IncludedNo
Brake Pressure Switch(s) IncludedNo
Product ConditionRemanufactured

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
1987BMW325esN/AReman with front disc brakes
1985BMW325eN/AReman with front disc brakes
1984BMW325eN/AReman with front disc brakes
1983BMW320iN/AReman with front disc brakes
1982BMW320iN/AReman with front disc brakes
1981BMW320iN/AReman with front disc brakes
1980BMW320iN/AReman with front disc brakes
1979BMW320iN/AReman with front disc brakes
1978BMW320iN/AReman with front disc brakes
1977BMW320iN/AReman 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:

3430115185034311154405

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