The Meritor A3211M3549 is a genuine OEM air brake spider designed for heavy-duty drum brake axle ends. It features 8 mounting holes arranged on a 7.25-inch bolt circle diameter, with a pilot diameter of 5.75 inches and individual hole diameter of 0.72 inches. The casting number is 3211-N-5344, and the brake type designation is Q. Mounting holes follow a specific clocking sequence of 28, 54, 81, 108, 208, 234, 261, and 288 degrees, with an offset of 1.75 inches. Call us to confirm proper fitment for your axle application.
Interchanges:
- 8235A3211M3549
- A3211M3549RI
- ATIA3211M3549
- TDAA3211M3549
Non returnable item
Features
Genuine Meritor OEM air brake spider, part number A3211M3549 or A 3211M3549
8 mounting holes on a 7.25 in. bolt circle diameter
Pilot diameter: 5.75 in.; individual hole diameter: 0.72 in.
Offset: 1.75 in.; brake type designation: Q
Mounting hole clocking sequence: 28, 54, 81, 108, 208, 234, 261, 288 degrees
Casting number: 3211-N-5344; VMRS code: 013-002-105
Tech Specs
- Mounting Holes: 8
- Bolt Circle Diameter: 7.25 in.
- Pilot Diameter: 5.75 in.
- Hole Diameter: 0.72 in.
- Offset: 1.75 in.
- Brake Type: Q
- Mounting Hole Clocking Sequence (Degrees): 28, 54, 81, 108, 208, 234, 261, 288
- Casting Number: 3211-N-5344
- VMRS Code: 013-002-105
