BDFHYK Rear Disc Brake Caliper Assembly for Acura RDX & Honda CR‑V/Crosstour — Single 1.5in Piston, Includes Hardware

The BDFHYK 19B6886 / 19B6887 rear disc brake caliper assembly is a direct-fit replacement caliper built to restore rear braking performance for compatible Acura and Honda models.

Designed as a drop-in swap for worn or leaking rear calipers, this BDFHYK assembly mirrors OE form and function so you can replace a failing unit without custom modifications. It fits rear left and right positions, uses a single 1.5-inch piston, and includes the mounting hardware and instructions to streamline installation. The design targets Acura RDX (2013–2018 3.5L V6) and Honda CR-V (2007–2016 2.4L I4) plus Crosstour (2012–2015 2.4L I4 / 3.5L V6) applications, matching common OEM part numbers for clear cross-reference.

Which vehicles will this caliper assembly fit?

This caliper is compatible with specific Acura and Honda models listed by engine and year ranges. Check your vehicle’s model year and engine size, and compare OEM cross-references to confirm fit before purchase.

• Acura RDX: 2013–2018, 3.5L V6
• Honda CR-V: 2007–2016, 2.4L I4
• Honda Crosstour: 2012–2015, 2.4L I4 and 3.5L V6
• OEM cross-references: 19-B6887 / 19-B6886, 43018SWAA10, 43018T0GA01

What are the key technical specs and connections?

The caliper uses a single piston design sized to common rear brake requirements and standard inlet/bleeder threads for compatibility with factory lines. These specifications ensure predictable hydraulic behavior and straightforward plumbing during replacement.

• Position: Rear, available for left and right sides
• Piston diameter: 1.5 inches (single piston)
• Brake line inlet thread: M10 x 1.0
• Bleeder screw thread: M10 x 1.25

How does this assembly simplify replacement versus rebuilding?

Buying a complete caliper assembly eliminates the need to source seals, pistons, or hardware individually and avoids labor for a rebuild. BDFHYK ships the caliper with required mounting components and a detailed installation guide to reduce installation time and fitment errors.

• Comes with mounting hardware included
• OE-standard design for direct bolt-on installation
• Detailed instructions to assist DIY or professional installers
• Saves time versus teardown and parts sourcing for a rebuild

What should I know about durability and support?

BDFHYK engineered this assembly to meet common replacement expectations for corrosion resistance and sealing, and they provide customer support for fitment questions. Proper bedding and fluid maintenance remain crucial to long-term function.

• Protective coatings on cast surfaces to resist corrosion
• Factory-style seals to help prevent leaks
• Customer service response within 24 hours for part or fit questions
• Matches OE part numbers for easier warranty/return processing

Who is this for: The BDFHYK 19B6886 / 19B6887 rear disc brake caliper assembly is aimed at vehicle owners and independent shops needing a reliable, direct-fit replacement for rear calipers on compatible Acura RDX, Honda CR-V, and Honda Crosstour models. It suits DIY mechanics who want a ready-to-install unit with included hardware and clear instructions, as well as professional technicians who prefer a cost-effective OE-style replacement that minimizes install time and uncertainty.