Description
Balanced cast iron brake drum, 16.5″ x 7″, for heavy-duty drive and trailer axles. Direct replacement for Gunite 3922X (also 3600AX/3600A/9006X), ConMet 10009830, Webb 66864B/77864BW, TRP DB1657B, and OTR 1601B. Armada DU60793 ships balanced for vibration-free service across Class 7 and Class 8 over-the-road and vocational applications.
Signs You Need a New Brake Drum
- Drum diameter at or beyond the manufacturer’s discard limit after machining
- Hairline or radial cracks visible on the drum braking surface
- Heavy heat-checking, blueing, or hard spots from overheating
- Excessive vibration, brake pulsation, or runout under load
- Bell-mouthing, scoring, or out-of-round wear measurable with a brake gauge
Specifications
| Manufacturer | Armada |
|---|---|
| Part Number | DU60793 |
| Part Type | Brake Drum, Balanced |
| Brake Diameter | 16.5″ |
| Brake Width | 7″ |
| Material | Cast Iron |
Cross References
This brake drum replaces or is equivalent to the following part numbers:
- Gunite: 3922X, 3600AX, 3600A, 9006X
- ConMet: 10009830, 10037763
- Webb: 66864B, 77864BW
- TRP: DB1657B
- OTR: 1601B
Applications
This 16.5″ x 7″ brake drum fits Class 7/8 drive and trailer axle wheel ends running 16.5″ S-cam drum brakes, common on:
- Drive axles on Freightliner, Kenworth, Peterbilt, International, Western Star, Mack, and Volvo tractors
- Trailer drum-brake axles on dry van, flatbed, reefer, and tanker trailers
- Vocational and refuse chassis with 16.5″ x 7″ S-cam axles
Verify drum diameter, width, pilot/bolt-circle, and hub-piloted vs. stud-piloted configuration before ordering to confirm fitment.
