MADE IN VIETNAM
TBP-0541640
16.5″ × 7″ Brake Drum
INTERCHANGE WITH: 3922X · GG39232
Rear and trailer drum for heavy-duty Class 8 trucks. Outboard mount for fast installation, G3500 gray iron for heat dissipation and fade resistance. FMVSS 121 dynamometer tested.
16.5″DIAMETER
7″WIDTH
105 lbWEIGHT
G3500GRAY IRON
Technical data sheet
TBP-0541640 · REV 03/2026DIMENSIONS
Overall depth7 in
Brake surface dia16.62 in
Pilot diameter8.75 in
Bolt circle · holes11.25 in · 10
MaterialG3500 (ASTM A48 CL35 eq)
Hardness187–241 HB
Weight105 lb
CROSS-REFERENCE
Meritor / Rockwell3922X · A3922X
GuniteA-3922X · S-235A24
WebbGG39232
CHECK YOUR PART # →FITMENTS
- Meritor RS-13-120 rear drive axle
- Dana/Spicer DS-404 rear axle
- Hendrickson HMX rear tandem
- Peterbilt 379 / 389 (2000–present)
- Kenworth W900 / T800 / T680
- Freightliner Classic XL / Cascadia (rear)
Why this drum
FMVSS 121 dimensional requirements met
CNC-machined brake surface, run-out under 0.15 mm
Coated sand mold casting for consistent wall thickness
Phosphate treatment for corrosion resistance in transit
Vietnam origin, zero anti-dumping duty to the US
OEM interchangeable, no modification required
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