HomeBrake > Hardware, Fasteners and FittingsMPA Electrical B1065 Power Brake Booster
Part #: B1065

MPA Electrical B1065 Power Brake Booster

Reman Vac Pwr Brake Booster w/o Master Cyl
⚙️ 22 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: Chevrolet and GMC, S10, S10 Blazer, S15, and S15 Jimmy
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Reliable Power Brake Booster Replacement for Chevrolet and GMC

The MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl (Part Number B1065) is designed as a standard replacement for select Chevrolet and GMC models. This remanufactured vacuum power brake booster enhances braking performance by providing consistent assist without the master cylinder included.

  • Remanufactured vacuum power brake booster
  • Compatible with Chevrolet S10, S10 Blazer, GMC S15, and S15 Jimmy
  • Dual diaphragm design with 229.87 mm (9.05 inch) diameter
  • Metal housing for durability
  • Includes 2 mounting studs with 10 x 1.5 mm master cylinder stud thread size
  • Standard brake service grade replacement

Product Line Details: Reman Vac Pwr Brake Booster w/o Master Cyl

This product is part of the MPA Electrical Reman Vac Pwr Brake Booster w/o Master Cyl line, which focuses on remanufactured vacuum power brake boosters without the master cylinder included. This line provides reliable, cost-effective brake booster replacements that meet standard brake service requirements, specifically designed for vehicles requiring a vacuum booster with a dual diaphragm and metal housing construction.

Detailed Product Description

The B1065 power brake booster features a dual diaphragm type with a diameter of approximately 229.87 mm (9.05 inches), ensuring effective vacuum assistance for braking systems. Its metal housing offers structural integrity and long-term durability. This booster is designed without a master cylinder or gasket/seal included, so it is intended for use with existing master cylinders. The unit includes two mounting studs and a master cylinder stud thread size of 10 x 1.5 mm, compatible with the specified Chevrolet and GMC models.

Common Applications and Issues Addressed

  • Restores proper brake pedal feel and assist on Chevrolet S10 and S10 Blazer
  • Replaces failing or weak vacuum brake boosters on GMC S15 and S15 Jimmy
  • Eliminates hard brake pedal issues caused by booster diaphragm failure
  • Addresses vacuum leaks within the brake booster assembly
  • Improves overall braking response and safety

Installation Notes and Tips

Installation requires removal of the existing brake booster and careful alignment of mounting studs. Since this unit does not include a master cylinder, ensure the existing master cylinder is compatible and in good condition. Verify the mounting stud quantity and thread size (2 studs, 10 x 1.5 mm) before installation. It is recommended to inspect vacuum lines and brake pedal rod connections during replacement.

Quality Assurance and Warranty

This remanufactured power brake booster undergoes thorough testing to meet standard brake service grade requirements. The product condition is remanufactured to restore functionality and reliability. Warranty details are provided by MPA Electrical and typically cover defects in materials and workmanship under normal use.

BrandMPA Electrical
Part NumberB1065
PositionReman Vac Pwr Brake Booster w/o Master Cyl
Brake Service GradeStandard replacement
Booster TypeVacuum
Brake Pedal Rod Extension IncludedNo
Diaphragm TypeDual
Master Cylinder IncludedNo
Gasket Or Seal IncludedNo
Housing MaterialMetal
Diaphragm Diameter229.87
Diaphragm Diameter9.05
Mounting Bracket IncludedNo
Front Seal IncludedNo
Master Cylinder Stud Thread Size (mm)10 x 1.5
Mounting Stud Quantity2
Product ConditionRemanufactured

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1987ChevroletS10N/AReman Vac Pwr Brake Booster w/o Master Cyl
1987ChevroletS10 BlazerN/AReman Vac Pwr Brake Booster w/o Master Cyl
1987GMCS15N/AReman Vac Pwr Brake Booster w/o Master Cyl
1987GMCS15 JimmyN/AReman Vac Pwr Brake Booster w/o Master Cyl
1986ChevroletS10N/AReman Vac Pwr Brake Booster w/o Master Cyl
1986ChevroletS10 BlazerN/AReman Vac Pwr Brake Booster w/o Master Cyl
1986GMCS15N/AReman Vac Pwr Brake Booster w/o Master Cyl
1986GMCS15 JimmyN/AReman Vac Pwr Brake Booster w/o Master Cyl
1985ChevroletS10N/AReman Vac Pwr Brake Booster w/o Master Cyl
1985ChevroletS10 BlazerN/AReman Vac Pwr Brake Booster w/o Master Cyl
1985GMCS15N/AReman Vac Pwr Brake Booster w/o Master Cyl
1985GMCS15 JimmyN/AReman Vac Pwr Brake Booster w/o Master Cyl
1984ChevroletS102.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1984ChevroletS10 Blazer2.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1984GMCS152.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1984GMCS15 Jimmy2.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1983ChevroletS102.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1983ChevroletS10 Blazer2.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1983GMCS152.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1983GMCS15 Jimmy2.8LV6N/AReman Vac Pwr Brake Booster w/o Master Cyl
1982ChevroletS10N/AReman Vac Pwr Brake Booster w/o Master Cyl
1982GMCS15N/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:

1800852118010041

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