4051042 Scania & Schmitz Cargobull Caliper Pin Dust Boot

What does a caliper pin dust boot do?

The brake caliper pin dust boot is a flexible, bellows-shaped sealing element that protects the slide pins of a disc brake caliper from water, mud, road salt, and brake pad dust. On heavy commercial vehicles, floating calipers travel axially along these pins during every brake application; maintaining smooth movement depends on the pins remaining clean and properly lubricated. This component bridges the gap between the pin and the bore, effectively keeping grease inside while preventing external contaminants from entering the mechanism.

Vehicle and system compatibility

This specific part is compatible with Scania vehicles and Schmitz Cargobull trailers. It is engineered to withstand harsh road conditions and intense thermal cycles encountered in heavy-duty braking operations. By ensuring a tight seal, it prevents the premature wear of the guide pins and helps maintain consistent braking performance throughout the service life of the caliper assembly.

Maintenance and installation guidance

For professional workshop technicians, this component is typically replaced during routine brake maintenance or when renewing the caliper pin kit. Ensuring a proper seal during installation is vital to prevent binding or seizing of the caliper. Always verify that the boot fits correctly over the pin to provide complete protection against environmental debris.

Troubleshooting guidance

Consult your authorized distributor to ensure correct fitment for your specific vehicle or trailer application.

OE cross-reference

4051042 (Brake Caliper Pin Dust Boot) is the equivalent of the Hendrickson, Scania, Schmitz Cargobull and WABCO OE numbers. This part directly replaces Hendrickson OE number S353034. It also replaces Scania OE number 2432073, Schmitz Cargobull OE number 1199858 and WABCO OE numbers 6402229202, 6402229282.