Carlson 7777 Disc Brake Caliper Piston - Front

Carlson Disc Brake Caliper Piston 7777

Carlson 7777 is a disc brake caliper piston for front brake service on select Mercedes-Benz, Jaguar, and Volkswagen applications. It is a direct-fit brake hydraulics component for restoring caliper piston function in vehicles such as the Mercedes-Benz GLA250, CLA250, and B250 models.

Key Features

• Disc brake caliper piston for front brake caliper repair
• Fits select Mercedes-Benz, Jaguar, and Volkswagen front applications
• Application-specific replacement for D1694, D394, and D338 brake setups
• Supports caliper rebuild work on OE-style brake systems
• Carlson part number 7777 for catalog and service reference

Fitment Details

• Fits 2015-2020 Mercedes-Benz GLA250, front, D1694; Disc Brake Caliper Piston
• Fits 2014-2019 Mercedes-Benz CLA250, front, D1694; Disc Brake Caliper Piston
• Fits 2016-2017 Mercedes-Benz B250e, front, D1694; Disc Brake Caliper Piston
• Fits 2014-2015 Mercedes-Benz B Electric Drive, front, D1694; Disc Brake Caliper Piston
• Fits 2013-2014 Mercedes-Benz B250, front, D1694; Disc Brake Caliper Piston
• Fits 1992-1994 Jaguar XJ6, front, Teves Brakes; D394
• Fits 1990-1991 Jaguar XJ6, front, Teves Calipers; D394
• Fits 1986-1991 Volkswagen Vanagon, front, Girling Brakes; D338

What This Part Helps Address

• Sticking or seized front caliper piston movement
• Brake drag caused by worn piston surfaces
• Poor brake pedal response from caliper wear
• Brake fluid leakage at the caliper piston area
• Brake rebuild needs on Mercedes-Benz, Jaguar, or Volkswagen front calipers

Installation Notes

Verify caliper design, brake code, and vehicle application before installation. This part cross-references D394 and D338 applications for the same service use. Clean the caliper bore thoroughly and inspect seals, boots, and related hydraulic components during rebuild work. Confirm the piston matches the original front caliper configuration on the vehicle.

Quality Assurance

Carlson brake hydraulics components are cataloged for service replacement use in specific OE-style brake applications. Part number 7777 is listed for front caliper service on the vehicles shown above.