R1 Concepts 2551-1391-10 Disc Brake Pad Set - Rear

Rear Brake Pads for Lexus GS, IS, and RC

R1 Concepts R1 Optimum OE Pads part number 2551-1391-10 are rear disc brake pads for select Lexus sedans and coupes. This pad set is built for drivers replacing worn rear pads on applications such as the Lexus GS350, IS350, and RC350.

Key Features

• Disc brake pad set for the rear axle
• R1 Optimum OE Pads product line
• Direct fitment for select Lexus rear brake applications
• Part number 2551-1391-10 for ordering and reference
• Fits 2013-2020 Lexus GS350, rear
• Fits 2016-2020 Lexus IS300, rear
• Fits 2014-2020 Lexus IS350, rear
• Fits 2016-2020 Lexus RC300, rear
• Fits 2015-2020 Lexus RC350, rear
• Fits 2018-2019 Lexus GS300, rear
• Fits 2013-2018 Lexus GS450h, rear
• Fits 2016-2017 Lexus GS200t, rear
• Fits 2016-2017 Lexus IS200t, rear
• Fits 2016-2017 Lexus RC200t, rear
• Fits 2014-2015 Lexus IS250, rear

Product Details

The R1 Optimum OE Pads line focuses on OE-style replacement brake pads for everyday street use. This rear disc brake pad set, part number 2551-1391-10, is listed for multiple Lexus rear brake applications across the GS, IS, and RC platforms. If you are searching for rear brake pads for a Lexus GS350, rear brake pads for a Lexus IS350, or rear brake pads for a Lexus RC350, this part number matches those fitments.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Replacement Reasons

• Rear brake pad wear or low friction material
• Squealing or noise from the rear brakes
• Reduced braking response at the rear axle
• Brake dust buildup from aging pads
• Uneven rear pad wear during routine service

Installation Notes

Verify rear axle fitment by year, model, and brake configuration before installation. Inspect rotors, calipers, and pad hardware condition during service, and follow the vehicle manufacturer’s brake service procedure. Confirm the part number 2551-1391-10 matches your Lexus GS, IS, or RC rear brake application before completing the repair.

Quality Assurance

R1 Concepts identifies this as part of the R1 Optimum OE Pads line, an OE-style brake pad offering for listed Lexus applications. Confirm fitment against the vehicle’s year and model before installation.