R1 Concepts 2551-1898-00 Disc Brake Pad Set - Rear

R1 Concepts Rear Brake Pads for Audi Applications

R1 Concepts R1 Optimum OE Pads, part number 2551-1898-00, are rear disc brake pad set replacements for select Audi models from 2016-2020. This OE-style pad set is built for drivers looking for a direct rear brake service part for Audi A4, A5, A6, Q5, and related variants.

Key Features

• Rear disc brake pad set for select Audi vehicles
• R1 Optimum OE Pads product line
• Part number 2551-1898-00
• Fits multiple Audi A4, A5, A6, and Q5 rear brake applications
• Requires the listed wear sensor for each application

Detailed Description

The R1 Concepts R1 Optimum OE Pads line focuses on OE-style replacement fitment for everyday brake service. This rear pad set, part number 2551-1898-00, is listed for 2016-2020 Audi A4, 2017-2020 Audi A4 allroad, 2017-2020 Audi A4 Quattro, 2018-2020 Audi A5 Quattro, 2018-2020 Audi A5 Sportback, 2020 Audi A6 allroad, 2019-2020 Audi A6 Quattro, 2019-2020 Audi A7 Sportback, 2018-2020 Audi Q5, 2020 Audi Q5 PHEV, and 2018-2019 Audi A5, all in the rear position. For fitment-specific service, note the required sensor references: BPS-73021 for the A4/A5 applications and BPS-74004 for the A6/Q5 applications.

Compatible With

• Fits 2016-2020 Audi A4, rear
• Fits 2017-2020 Audi A4 allroad, rear
• Fits 2017-2020 Audi A4 Quattro, rear
• Fits 2018-2020 Audi A5 Quattro, rear
• Fits 2018-2020 Audi A5 Sportback, rear
• Fits 2020 Audi A6 allroad, rear
• Fits 2019-2020 Audi A6 Quattro, rear
• Fits 2019-2020 Audi A7 Sportback, rear
• Fits 2018-2020 Audi Q5, rear
• Fits 2020 Audi Q5 PHEV, rear
• Fits 2018-2019 Audi A5, rear

What This Part Helps Address

• Rear brake pad wear on Audi A4, A5, A6, A7, and Q5 models
• Squealing or noise from worn rear pads
• Reduced braking response from depleted friction material
• Brake warning light concerns when the wear sensor is due for replacement
• Routine rear brake service on OE-style Audi brake systems

Installation Notes and Tips

Verify the rear axle application before ordering and match the wear sensor requirement to the vehicle: BPS-73021 for listed A4 and A5 models, or BPS-74004 for listed A6 and Q5 models. Confirm rotor condition, caliper operation, and pad hardware condition during brake service. Part number 2551-1898-00 is a rear-only pad set and should be installed on the correct axle position.

Quality Assurance

R1 Concepts R1 Optimum OE Pads are positioned as OE-style replacement brake pads for the listed Audi applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.