Description
HD Value HDV1601B 16.5″ × 7″ outboard-mount balanced brake drum for heavy-duty drive and trailer axles. Replaces Webb 56864, Gunite 3600AX, and ConMet 3922X. Outboard-mount configuration with 10-stud, 1.00″ hole pattern on an 11.25″ bolt circle and 8.78″ pilot diameter, sized to drop into standard heavy-truck S-cam brake assemblies.
Specifications
| Manufacturer | HD Value |
|---|---|
| Part Number | HDV1601B |
| Part Type | Brake Drum (Outboard Mount, Balanced) |
| Brake Size | 16.5 in × 7 in |
| Bolt Holes | 10 |
| Bolt Hole Size | 1.00 in |
| Bolt Circle | 11.25 in |
| Pilot Diameter | 8.78 in |
| Overall Depth | 10.54 in |
| Balance | Balanced |
Cross References
This part replaces or is equivalent to the following part numbers:
- Webb: 56864
- Gunite: 3600AX, 66864
- ConMet: 3922X, 107885
Applications
This brake drum fits heavy-duty drive and trailer axles using a 16.5″ × 7″ outboard-mount, 10-on-11.25 wheel pattern, including:
- Eaton, Meritor, and Dana drive and trailer axles with 16.5″ × 7″ S-cam brakes
- Hendrickson trailer suspensions with matching axle spec
- Standard heavy-truck and trailer applications using ConMet, Webb, or Gunite outboard-mount drums
Verify wheel-end configuration, bolt pattern, and pilot diameter against your axle spec before ordering.
