The Meritor A3211P4800 is a genuine OEM air brake spider assembly designed for heavy-duty drum brake axle ends. This Type Q brake spider features a 12-hole mounting pattern arranged on a 7.125 in. bolt circle diameter, with holes equally distributed at 30-degree intervals (15, 45, 75, 105, 135, 165, 195, 225, 255, 285, 315, and 345 degrees). Each mounting hole measures 0.59 in. in diameter. The pilot diameter is 5.88 in. and the offset is 1.75 in. Casting number 3211-F-3594 aids in verification. Call us to confirm proper fit for your application.
Interchanges:
- 8235A3211P4800
- ATIA3211P4800
- MERA3211P4800
- RWA3211P4800
- TDAA3211P4800
Features
Type Q air brake spider assembly
12 mounting holes on a 7.125 in. bolt circle diameter
Mounting hole diameter: 0.59 in.
Pilot diameter: 5.88 in.
Offset: 1.75 in.
Casting number: 3211-F-3594
Tech Specs
- Brake Type: Q
- Mounting Holes: 12
- Bolt Circle Diameter: 7.125 in.
- Mounting Hole Diameter: 0.59 in.
- Pilot Diameter: 5.88 in.
- Offset: 1.75 in.
- Non-Mounting Holes on Bolt Circle: 1
- Clocking Sequence (Degrees): 15, 45, 75, 105, 135, 165, 195, 225, 255, 285, 315, 345
- Casting Number: 3211-F-3594
- VMRS Code: 013-002-105
