Knorr Type Disc Brake Caliper for Trailer Disc Caliper Caliper Plastic Cover

This Knorr-type plastic cover is specifically made for trailer air disc brake calipers. It protects the caliper’s adjustment structure and internal parts from dust, water splashes, and road debris, and fits perfectly with Knorr-style trailer brake systems. It also helps keep the braking performance stable and extends the service life of key brake components.
Trailer brake calipers always work in tough conditions—they’re exposed to rain, mud, sand, and constant vibration. This plastic cover acts as a solid protective barrier, keeping dirt and moisture out, which prevents premature wear on the caliper’s internal moving parts and adjustment mechanisms.
It’s widely used on commercial trailers, semi-trailers, container trucks, and logistics fleets. For fleet owners, this small cover is a practical addition—it cuts down on maintenance frequency and avoids brake faults caused by dust or water damage. Plus, it’s lightweight but sturdy, easy to install during caliper assembly or routine maintenance, and never affects the normal braking function.