AxleTech K003784 is a Rational Caliper, a genuine AxleTech part. A brake caliper squeezes the pads onto the rotor, and that friction is what slows the truck. Most heavy-truck calipers are floating designs that slide on guide pins, so the pad on the far side is drawn in as the near side applies.
Uneven pad wear on a rotor, a wheel end running hotter than its neighbors, or the truck pulling to one side under braking can point to a caliper that is not sliding freely. Torn boots and corrosion on the sliding surfaces are worth checking at the same time. Call us to confirm proper fit for your application.
Features
Genuine AxleTech Rational Caliper
Brake caliper that presses the pads onto the rotor to slow the truck
Uneven pad wear, a hot wheel end or a pull to one side can signal a caliper that is not sliding freely
Check boots and sliding surfaces for tears and corrosion when servicing
