HomeBrake > Hardware, Fasteners and FittingsMPA Electrical B3112 Power Brake Booster
Part #: B3112

MPA Electrical B3112 Power Brake Booster

Reman Vac Pwr Brake Booster w/o Master Cyl
7 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Reman Vac Pwr Brake Booster w/o Master Cyl
Fitment: Toyota, Pickup
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Reman Vacuum Brake Booster for Toyota Pickup

Restore firm, consistent brake assist with this remanufactured vacuum power brake booster from MPA Electrical. Built for 1989-1995 Toyota Pickup applications, part number B3112 is a standard replacement booster designed to reduce pedal effort and support reliable braking response.

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl line focuses on remanufactured vacuum boosters with treated replacement components and end-of-line testing. That approach helps deliver dependable vacuum sealing and pressure transfer for Toyota Pickup brake service.

  • Remanufactured vacuum power brake booster
  • Standard replacement brake service grade
  • Metal housing construction
  • 223.52 mm / 8.8 in diaphragm diameter
  • 2 mounting studs with 8 x 1.25 mm master cylinder stud thread size
  • Master cylinder not included
  • Brake pedal rod extension not included
  • Gasket or seal not included
  • Mounting bracket not included

Detailed Product Overview

MPA Electrical B3112 is a reman vacuum brake booster engineered for direct replacement in 1989-1995 Toyota Pickup models. It is built to restore vacuum-assisted braking performance by increasing assist at the pedal, which is important when the original booster shows signs of wear, leakage, or reduced vacuum retention. This part cross-references Toyota OE numbers 446103D160 and 446103D450 for the same application.

For buyers searching for a Toyota Pickup brake booster replacement, Toyota Pickup vacuum booster, or remanufactured power brake booster without master cylinder, B3112 provides the core booster assembly only. Confirm your existing brake system layout and mounting points before ordering.

Common Brake Booster Symptoms

  • Hard brake pedal feel
  • Reduced brake assist during stops
  • Vacuum leak noise near the booster area
  • Longer pedal travel than normal
  • Inconsistent braking response on Toyota Pickup trucks

Installation Notes

Verify master cylinder compatibility, stud thread size, and booster mounting configuration before installation. Because the master cylinder is not included, transfer or replace related brake components as needed during service. After installation, inspect for vacuum leaks and confirm proper pedal height and brake assist before returning the vehicle to service.

Quality Assurance

MPA Electrical remanufactured brake boosters are 100% end-of-line tested with proprietary equipment to verify performance before release. The booster is built with new replacement and specially treated components to support maximum vacuum seal and consistent pressure transfer.

BrandMPA Electrical
Part NumberB3112
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 Diameter223.52
Diaphragm Diameter8.8
Mounting Bracket IncludedNo
Front Seal IncludedNo
Master Cylinder Stud Thread Size (mm)8 x 1.25
Mounting Stud Quantity2
Product ConditionRemanufactured

This part fits 7 vehicles. Search below:

YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
1995ToyotaPickupRWD2.4LL4N/AReman Vac Pwr Brake Booster w/o Master Cyl
1994ToyotaPickupRWD2.4LL4N/AReman Vac Pwr Brake Booster w/o Master Cyl
1993ToyotaPickupRWD2.4LL4N/AReman Vac Pwr Brake Booster w/o Master Cyl
1992ToyotaPickupRWD2.4LL4N/AReman Vac Pwr Brake Booster w/o Master Cyl
1991ToyotaPickupRWD2.4LL4N/AReman Vac Pwr Brake Booster w/o Master Cyl
1990ToyotaPickupRWDAutomatic2.4LL4N/AReman Vac Pwr Brake Booster w/o Master Cyl
1989ToyotaPickupRWDAutomatic2.4LL4N/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:

446103D160446103D450

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