Carlson 7755 Disc Brake Caliper Piston - Front

Carlson 7755 Front Brake Caliper Piston

Carlson 7755 is a front disc brake caliper piston for select BMW 320i applications with ATE calipers. It is built for 1977-1983 BMW 320i front brake service and supports accurate hydraulic caliper operation.

Key Features

• Disc brake caliper piston for front brake hydraulics
• Fits 1977-1978 BMW 320i, front, ATE calipers; D109
• Fits 1979-1983 BMW 320i, front, ATE calipers; D174
• Direct-fit service part for Carlson 7755 applications
• Part number 7755 for catalog and fitment lookup

Detailed Description

This Carlson brake caliper piston is specified for front ATE caliper service on BMW 320i models from 1977 through 1983. Use Carlson 7755 when replacing a worn, scored, or sticking piston in the front brake hydraulic assembly. This part cross-references OE-style service applications for the same BMW 320i front caliper configurations.

What It Helps Fix

• Brake drag caused by a piston that does not retract smoothly
• Uneven front braking from caliper piston wear or corrosion
• Hydraulic sealing issues related to piston surface damage
• Poor brake pedal response caused by caliper piston binding
• Front brake service needs on BMW 320i ATE calipers

Installation Notes and Tips

Confirm caliper type before ordering. Carlson 7755 is listed for front BMW 320i applications with ATE calipers and the noted D109 or D174 configurations. Inspect the caliper bore, seals, and brake fluid condition during service, and verify piston fitment against the removed part before assembly.

Quality Assurance

Carlson brake hydraulics parts are cataloged for application-specific replacement use. Verify fitment by year, model, position, and caliper note before installation.