Meritor A3211F5648 spider assembly for air brakes, with a 7.12 in. bolt circle diameter and a 5.88 in. pilot diameter. Those two measurements are the quickest way to confirm it against the spider you are replacing.
The spider is the base that carries the brake shoes and cam hardware at the axle end, holding them in position so braking force reaches the shoes properly. A worn, cracked or misaligned spider tends to show up as uneven brake application, extra shoe wear or brake parts that no longer line up. This is a genuine Meritor part from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Meritor air brake spider assembly, part number A3211F5648
Bolt circle diameter: 7.12 in.
Pilot diameter: 5.88 in.
VMRS code: 013-002-105
Carries the brake shoes and cam hardware at the axle end
Genuine Meritor part
