Power Brake Booster and Brake Vacuum Booster FIT 2009-2019 Toyota Corolla, FIT 2006-2012 RAV4 (3-Row Seats ONLY), FIT 2008-2015 Scion xB tC, Replace 53-4932 4461002441

Product Functional Summary: This Power Brake Booster is a vacuum-actuated assist unit designed to restore the pressure differential required for efficient braking. By utilizing the engine vacuum, this Brake Vacuum Booster reduces the physical effort required on the pedal while maintaining precise control over the master cylinder’s hydraulic output. Detailed Fitment Matrix: - 2009-2019 FIT Toyota Corolla (1.8L / 2.4L) - Power Brake Booster - 2006-2012 FIT Toyota RAV4 (3-Row Seats ONLY) - Brake Vacuum Booster - 2008-2015 FIT Scion xB (2.4L) - Vacuum Assist Unit - 2011-2016 FIT Scion tC (2.5L) - Power Assist Component - 2009-2014 FIT Toyota Matrix (1.8L / 2.4L) - Brake Booster Technical Specifications & OE Cross-Reference: - Housing Material: Reinforced Heavy-Duty Steel - Testing: 100% Vacuum Pressure Leak Tested - OE Numbers: 53-4932, 534932, 4461002441, 4461002451, 4461002461, 4461002471, 4461002630, 446100R021, 4461012D21, 4461012D80, 4461012D81, 4461012G00, 4461021170, 4461021180, 4461042320, 4461042321 Safety & Installation Protocols: - Notice: Specifically for RAV4 models with 3 rows of seats. Does not fit 2-row seat configurations. - Tool Limit: Hand-tighten mounting bolts to factory torque specs; DO NOT USE IMPACT TOOLS. - System Check: Address excessive mechanical play by inspecting the vacuum check valve and hose prior to installation.

• FIT 2009-2019 Toyota Corolla (L4 1.8L/2.4L); FIT 2006-2012 Toyota RAV4 (L4 2.4L/2.5L & V6 3.5L with 3-Row Seats ONLY); FIT 2008-2015 Scion xB; FIT 2011-2016 Scion tC; FIT 2009-2014 Toyota Matrix. This Brake Vacuum Booster is engineered for specific master cylinder patterns. Please verify seat row configuration for RAV4 models to ensure firewall clearance.
• Constructed with reinforced steel housing and high-density internal diaphragms, this Power Brake Booster is 100% vacuum leak tested to ensure zero pressure drop. The internal sealing components are designed for environmental exposure, maintaining structural integrity under high-vacuum cycles and extreme engine bay thermal fluctuations.
• The central push rod is manufactured from high-carbon steel with OE-matching stroke specifications to address excessive mechanical play. This Brake Vacuum Booster restores factory handling characteristics, resolving symptoms of a hard brake pedal or delayed power assist by maintaining consistent vacuum-to-force amplification.
• This unit is designed for direct-fit integration with the existing hydraulic brake circuit. The mounting studs and vacuum port locations are precisely aligned to match 53-4932 and 4461002441 specifications. It functions as a standalone vacuum assist unit; ensure the master cylinder is reused or sourced separately as it is not included in this physical package.
• Tested for salt spray endurance to meet environmental resistance standards without the use of regulated chemical coatings. To prevent housing deformation or diaphragm rupture, do not use pneumatic impact wrenches (air guns) during installation. This Power Brake Booster is a sealed unit; do not attempt to disassemble the housing.