3556025 SL7, SM7, ST7 Ø69mm Optional and Dust Bellow

This heavy-duty grade component serves as a critical element within the air disc brake caliper system. Designed as an optional and dust bellow for the caliper tappet, it protects internal components from environmental contaminants, ensuring the longevity and reliability of the braking mechanism in demanding heavy commercial vehicle environments.

3556025 is the OE-equivalent of the KNORR-BREMSE K046523K50 and MERCEDES BENZ 000 423 03 16 brake caliper tappet used in KNORR-BREMSE SL7, SM7, and ST7 systems. This part is engineered to meet strict technical specifications to maintain consistent braking pressure and protection against dust and debris.

For workshop technicians performing brake system maintenance, this bellow provides a precise fit for Ø69mm applications. It is essential for maintaining the integrity of the brake caliper assembly during routine service intervals. Ensuring the correct fitment prevents system leaks and maintains optimal pneumatic performance within the braking circuit.

Proper installation of this dust bellow helps prevent premature wear of the caliper components. It is specifically engineered for heavy commercial vehicle chassis such as the SL7, SM7, and ST7 series to ensure seamless integration with existing braking hardware.