brake shields, otherwise referred to as dust covers, back plates or splash panels, serve to protect the braking system, as well as steering & suspension components, from heat, dirt and debris that would potential reduce their normal lifespan.
Looking in more detail, the shield protects the brake discs, pads and hoses from being bombarded by dirt and dust contamination from both the road and the friction material that is produced as the pads and discs wear from their use. They therefore help to maintain the vehicle’s braking performance.
