The Meritor A3211K3911 is a genuine OEM air brake spider assembly for heavy-duty truck drum brake axle ends. Key dimensional specs: bolt circle diameter of 8.125 in., pilot diameter of 6.75 in., hole diameter of 2.03 in., and an offset of 1.75 in. The ten mounting holes are clocked at 18, 54, 90, 126, 162, 198, 234, 270, 306, and 342 degrees. Casting number 4211-Z-3406 identifies the exact casting used. Brake type is Q. Call us to confirm proper fit for your axle application.
Interchanges:
- 02035
- 02036
- 15583741
- 8235A3211K3911
- A3211K3911RI
- ATIA3211K3911
- G15583741
- MERA3211K3911
- ROA3211K3911
- TDAA3211K3911
- Automann 1531003
- Dana 361717
Features
Genuine Meritor OEM air brake spider assembly, part number A3211K3911 or A 3211K3911
Bolt circle diameter: 8.125 in.
Pilot diameter: 6.75 in.; hole diameter: 2.03 in.
Offset: 1.75 in.
Type Q brake designation; casting number 4211-Z-3406
Ten mounting holes clocked at 18, 54, 90, 126, 162, 198, 234, 270, 306, and 342 degrees
Tech Specs
- Bolt Circle Diameter: 8.125 in.
- Pilot Diameter: 6.75 in.
- Holes Diameter: 2.03 in.
- Offset: 1.75 in.
- Brake Type: Q
- Casting Number: 4211-Z-3406
- Clocking Sequence of Mounting Holes (Degrees): 18, 54, 90, 126, 162, 198, 234, 270, 306, 342
- VMRS Code: 013-002-105
