The Meritor air brake spider assembly A2-3211S2879 or A23211S2879 is a genuine OEM component built to Meritor's original specifications. This spider mounts with a 7.25-inch bolt circle diameter and seats against a 5.75-inch pilot diameter, giving you the exact fitment geometry needed for proper S-cam brake assembly alignment. The spider is the structural anchor for the brake shoe assembly at the wheel end, so dimensional accuracy matters. VMRS code 013-002-105 identifies this as a brake spider under the heavy-duty brake classification system. Sold by Pro Gear and Transmission. Call us to confirm the right fit for your axle configuration.
Features
Genuine Meritor OEM air brake spider assembly
Pilot diameter: 5.75 in.
Bolt circle diameter: 7.25 in.
VMRS code: 013-002-105 (brake spider classification)
Sold as a single unit (unit pack: 1)
Available from Pro Gear and Transmission, call to confirm fitment for your application
Tech Specs
- Pilot Diameter: 5.75 in.
- Bolt Circle Diameter: 7.25 in.
- VMRS Code: 013-002-105
- Unit Pack: 1
