Akebono ACT1878 Disc Brake Pad Set - Rear

Akebono ProACT Ultra Premium Ceramic Pad ACT1878

The Akebono ProACT Ultra Premium Ceramic Pad ACT1878 is a rear disc brake pad set for select Acura and Honda applications. It is built around Akebono’s ceramic brake technology and OE-focused friction development for drivers who want consistent braking performance and low-noise operation.

Key Features

• ProACT Ultra Premium Ceramic Pad line for rear disc brake applications
• OE-style replacement for select Acura Integra, RDX, TLX, and Honda Accord, Civic, and Insight models
• Designed with Akebono’s focus on noise, vibration, and harshness control
• Rear brake pad fitment for 2016-2025 vehicles listed below
• Part number ACT1878 for catalog and cross-reference lookup

Product Details

Akebono Brake Corporation is known for ceramic brake technology and OE brake development across a wide range of vehicle platforms. The ProACT Ultra Premium Ceramic Pad line is positioned as an OE-spec replacement solution for rear brake service on the Acura Integra, Acura RDX, Acura TLX, Honda Accord, Honda Civic, and Honda Insight. This part number, ACT1878, is listed for rear applications with fitment notes that vary by model year, including versions without abutment clips and 2021 California-excluded applications.

This part cross-references Bosch BC1878 and Wagner QC1878 for the same application.

Vehicle Fitment

• Fits 2023-2025 Acura Integra, rear, without abutment clips; ProACT Ultra Premium Ceramic Pad
• Fits 2022-2025 Acura RDX, rear, without abutment clips; ProACT Ultra Premium Ceramic Pad
• Fits 2021-2025 Acura TLX, rear, without abutment clips; ProACT Ultra Premium Ceramic Pad
• Fits 2022-2025 Honda Accord, rear, without abutment clips; ProACT Ultra Premium Ceramic Pad
• Fits 2022-2025 Honda Civic, rear, without abutment clips; ProACT Ultra Premium Ceramic Pad
• Fits 2022 Honda Insight, rear, without abutment clips; ProACT Ultra Premium Ceramic Pad
• Fits 2021 Acura RDX, rear, California excluded; Ceramic OE Pad Material; ProACT Ultra Premium Ceramic Pad
• Fits 2021 Honda Accord, rear, California excluded; Ceramic OE Pad Material; ProACT Ultra Premium Ceramic Pad
• Fits 2021 Honda Civic, rear, California excluded; Ceramic OE Pad Material; ProACT Ultra Premium Ceramic Pad
• Fits 2021 Honda Insight, rear, California excluded; Ceramic OE Pad Material; ProACT Ultra Premium Ceramic Pad
• Fits 2019-2020 Acura RDX, rear, OEM-spec replacement disc brake pad set; ProACT Ultra Premium Ceramic Pad
• Fits 2018-2020 Honda Accord, rear, OEM-spec replacement disc brake pad set; ProACT Ultra Premium Ceramic Pad
• Fits 2016-2020 Honda Civic, rear, OEM-spec replacement disc brake pad set; ProACT Ultra Premium Ceramic Pad
• Fits 2019-2020 Honda Insight, rear, OEM-spec replacement disc brake pad set; ProACT Ultra Premium Ceramic Pad

Common Service Issues Addressed

• Rear brake pad wear on Acura Integra, RDX, and TLX models
• Brake noise during everyday driving and stop-and-go traffic
• Uneven or reduced rear braking performance from worn pads
• OE replacement needs for Honda Accord, Civic, and Insight rear brakes
• Service replacement for ceramic OE pad material applications

Installation Notes

Verify rear axle fitment, model year, and application notes before ordering. Some listings specify without abutment clips, while 2021 applications note California exclusion and ceramic OE pad material. Match the part number ACT1878 to the vehicle’s rear brake configuration and confirm compatibility with the existing caliper and pad shape before installation.

Quality Assurance

Akebono is a long-established brake manufacturer with technical and R&D operations in Japan, the United States, and France, and its products are developed with a focus on friction material control and NVH performance. The ProACT line reflects that OE-oriented engineering approach for rear brake service on select Acura and Honda models.