$125.84
The 3807X Brake Drum is engineered to provide superior braking performance, exceptional heat dissipation, and dependable durability for heavy-duty commercial vehicles. Featuring a 16.500″ brake diameter alongside an 8.625″ brake surface width, this heavy-duty unit ensures exact fitment across universal truck and trailer axle setups. In addition, it serves as a direct cross reference replacement for popular part numbers 3807X, Webb 66854B, and Meritor 85-123570-002. Because this unit is manufactured to strict Fleet Standard guidelines, it prevents premature heat checking and reduces maintenance downtime under heavy payloads. As a result, your fleet gains maximum stopping power on every long-distance haul.
Cross Reference: 3807X, 3807, 3807A, 3807AX, 66854B, 66854, 66854F, 66809B, 66855B, 66855, 66855F, 56855B, 85-123570-002, 85123570002, 123570, 03123570002, 10012097, 10037825, 10037830, 107638, N42A1658625B, 54229-018, 151.68607BATR
Keep your commercial trucks running safely with the premium 3807X Brake Drum (16.5″ x 8.625″). Constructed for demanding applications, this heavy-duty component provides consistent drum-to-lining contact to optimize stopping efficiency. Consequently, this balanced structural design reduces chatter, minimizes high-speed wheel end vibration, and helps extend the working life of your brake shoes.
Whether you manage a fleet of long-haul tractors or service heavy commercial trailers, this 3807X Brake Drum delivers long-term thermal resistance during severe braking cycles. Furthermore, efficient heat dissipation protects internal wheel-end seals and bearings from extreme temperature spikes. However, because this heavy-duty component weighs 127 lbs, it ships exclusively via LTL freight carriers. Therefore, every shipment is carefully palletized to protect critical hub mounting surfaces during transit.
In order to maximize the service life of your new 3807X Brake Drum, always inspect your S-cams, bushings, and automatic slack adjusters during drum installation. Additionally, check grease seals and wheel bearings to prevent premature hub failure. First, clean all wheel hub mounting faces thoroughly before positioning the drum. Next, align the wheel studs properly and torque all fasteners to manufacturer specifications using a cross pattern. Finally, perform a road test to verify smooth braking performance without chatter. For step-by-step guidance on selecting friction materials, read our complete guide on how to choose heavy-duty brake shoes.
Focus Part Number: 3807X
Brake Diameter: 16.500 in.
Brake Surface Width: 8.625 in.
Product Level: Fleet Standard
Application Fitment: Universal Commercial Truck & Trailer
Unit Weight: 127 lbs (LTL Freight Only)
Package Dimensions: 20″ x 20″ x 12″
Besides direct fitment applications, this heavy-duty drum replaces several major OEM numbers. Specifically, you can cross-reference the following industry part numbers:
| Manufacturer / Brand | Cross Reference Part Number |
| Primary Part Number | 3807X |
| Gunite | 3807X, 3807, 3807A, 3807AX |
| Webb | 66854B, 66854, 66854F, 66809B, 66855B, 66855, 66855F, 56855B |
| Meritor | 85-123570-002, 85123570002, 123570, 03123570002 |
| Conmet | 10012097, 10037825, 10037830, 107638 |
| Freightliner | N42A1658625B |
| Industry Ref # | 54229-018 |
| Alternate # | 151.68607BATR |
Moreover, if you are completing a full brake system overhaul, browse our full line of Drums and Rotors or check commercial fleet safety compliance standards set by the Federal Motor Carrier Safety Administration (FMCSA).
| Weight | 127 lbs |
|---|---|
| Dimensions | 20 × 20 × 12 in |
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