Carlson 7878 Disc Brake Caliper Piston - Front

Carlson Disc Brake Caliper Piston 7878

The Carlson 7878 disc brake caliper piston is a front brake hydraulics component built for vehicles that use a D1509 caliper application. It transfers brake fluid pressure into clamping force, pushing the brake pads against the rotor for controlled stopping performance. This part is a direct-fit option for select INFINITI QX80, Nissan Armada, and Nissan TITAN front brake applications.

Key Features

• Disc brake caliper piston for front brake hydraulics service
• Uses hydraulic pressure to move the caliper piston against the brake pads
• Fits select D1509 front caliper applications
• Application coverage for INFINITI QX80, Nissan Armada, and Nissan TITAN
• Carlson part number 7878 for catalog and service matching

Fitment Details

• Fits 2020-2023 INFINITI QX80, front; D1509; Disc Brake Caliper Piston.
• Fits 2020-2022 Nissan Armada, front; D1509; Disc Brake Caliper Piston.
• Fits 2020-2022 Nissan TITAN, front; Disc Brake Caliper Piston.
• Fits 2015-2019 INFINITI QX80, front; Disc Brake Caliper Pin Kit D1509.
• Fits 2017-2019 Nissan Armada, front; Disc Brake Caliper Pin Kit D1509.
• Fits 2017-2019 Nissan TITAN, front; Disc Brake Caliper Pin Kit D1509.
• Fits 2012-2015 Nissan Armada, front; Fitment: Disc Brake Caliper Pin Boot Kit for D1509.
• Fits 2012-2015 Nissan TITAN, front; Fitment: Disc Brake Caliper Pin Boot Kit for D1509.
• Fits 2014 INFINITI QX80, front; Fitment: Disc Brake Caliper Pin Boot Kit for D1509.
• Fits 2011-2013 INFINITI QX56, front; Fitment: Disc Brake Caliper Pin Boot Kit for D1509.
• Fits 2007-2011 Nissan Armada, front; Disc Brake Caliper Pin Kit D1286.
• Fits 2011 Nissan TITAN, front; Check part number for compatibility across brands and models before purchasing Disc Brake Caliper Pin Boot Kit.
• Fits 2007-2010 INFINITI QX56, front; Disc Brake Caliper Pin Kit D1286.
• Fits 2008-2010 Nissan TITAN, front; Disc Brake Caliper Pin Kit D1286.

What This Part Helps Address

• Brake pedal travel caused by a worn or damaged caliper piston
• Uneven pad contact at the front brakes
• Reduced braking response from hydraulic caliper wear
• Service needs on D1509 front brake assemblies
• Replacement during caliper rebuild or brake hydraulic repair

Installation Notes

Verify the caliper design and part number before installation, especially on 2011 Nissan TITAN and other overlapping applications. Confirm the vehicle year, make, model, and front brake configuration against the existing caliper hardware before ordering. For fitment searches, this part is commonly referenced as a front brake caliper piston for 2020-2023 INFINITI QX80, 2020-2022 Nissan Armada, and 2020-2022 Nissan TITAN.

Quality Assurance

Carlson brake hydraulics components are cataloged for specific OE-style applications, and the 7878 part number is listed for the front brake piston service needs shown above. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.