HomeMPA Electrical B3244 Power Brake Booster
Part #: B3244

MPA Electrical B3244 Power Brake Booster

Reman Vac Pwr Brake Booster w/o Master Cyl
4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Reman Vac Pwr Brake Booster w/o Master Cyl
Fitment: Lexus, IS300
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Remanufactured Vacuum Brake Booster for Lexus IS300

MPA Electrical B3244 is a remanufactured vacuum power brake booster for select 2002-2005 Lexus IS300 applications. It is built for standard replacement service and is engineered to deliver strong braking assist with reduced pedal effort.

The MPA Electrical brake booster line focuses on restored vacuum sealing, dependable pressure transfer, and end-of-line testing for consistent performance. This B3244 unit is supplied without the master cylinder and uses a metal housing with an 8.75-inch diaphragm diameter.

Key Features

  • Remanufactured vacuum power brake booster
  • Standard replacement brake service grade
  • Fits 2002-2005 Lexus IS300, N/A
  • Metal housing construction
  • 8.75-inch diaphragm diameter
  • Master cylinder not included
  • Brake pedal rod extension not included
  • Two mounting studs with 8 x 1.25 mm master cylinder stud thread size

Product Details

MPA Electrical B3244 is designed for drivers who need consistent brake assist in a direct replacement format. The remanufactured booster is tested to verify vacuum integrity and pressure transfer, helping restore pedal feel on Lexus IS300 brake systems. If you are searching for a reman vacuum brake booster for 2002-2005 Lexus IS300, B3244 is the correct part number to reference.

This part cross-references Monroe Shocks & Struts (e.g., 172286) for the same application.

What It Helps Address

  • Hard brake pedal feel
  • Reduced brake assist
  • Vacuum seal loss in the booster assembly
  • Inconsistent pedal response during braking
  • Replacement needs on a worn Lexus IS300 brake booster

Installation Notes

Verify the vehicle application before installation and confirm master cylinder compatibility, since the master cylinder is not included. Check the mounting points, stud thread size, and pedal linkage setup against the original booster on the vehicle. For best results, inspect vacuum hoses, seals, and related brake components during service.

Quality Assurance

MPA Electrical remanufactures this booster with treated replacement components and subjects each unit to 100% end-of-line testing using proprietary test equipment to confirm performance before release.

BrandMPA Electrical
Part NumberB3244
PositionReman Vac Pwr Brake Booster w/o Master Cyl
Brake Service GradeStandard replacement
Booster TypeVacuum
Brake Pedal Rod Extension IncludedNo
Master Cylinder IncludedNo
Gasket Or Seal IncludedNo
Housing MaterialMetal
Diaphragm Diameter222.25
Diaphragm Diameter8.75
Mounting Bracket IncludedNo
Front Seal IncludedNo
Master Cylinder Stud Thread Size (mm)8 x 1.25
Mounting Stud Quantity2
Product ConditionRemanufactured

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2005LexusIS300N/AReman Vac Pwr Brake Booster w/o Master Cyl
2004LexusIS300N/AReman Vac Pwr Brake Booster w/o Master Cyl
2003LexusIS300N/AReman Vac Pwr Brake Booster w/o Master Cyl
2002LexusIS300N/AReman Vac Pwr Brake Booster w/o Master Cyl

* 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:

4461053190

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