Brake Drum, 12-1/4 in x 7-1/2 in, 6 holes, (75 lb)
#GUN3174
Product Overview
This 12.25 in x 7.5 in brake drum is designed for trailer axles. It features 6 bolt holes, an inboard mounting, and a durable cast construction for reliable braking performance.
Features & Benefits
- All Gunite Brake Drums & Disc Brake Rotors Are Fully Protected by One of the Industrys Most Comprehensive Warranties on Material and Workmanship.
- Manufactured to Meet or Exceed O.E.M. Specifications in Function. Form & Fit.
- Gunite Brake Drums & Disc Brake Rotors Are Available Nationwide Through Over 400 Independent Warehouse Distributors. and Various O.E.M. Dealer Networks.
- Gunite Brake Drums & Rotors Offer a Level of Engineering Quality That Meets or Surpasses the Requirements of Every Truck & Trailer Manufacturer.
- Gunite Offers the Industry's Most Complete Line of Brake Drums & Disc Brake Rotors.
Specifications
| Application | Trailer Axles |
| Back Plate Thickness | 7/16 in |
| Bolt Circle Diameter | 10 in |
| Bolt Hole (Number) | 6 |
| Brake Shoe Width | 7-1/2 in |
| Brake Size | 12-1/4 in x 7-1/2 in |
| Brake Surface Diameter | 12-1/4 in |
| Brake Surface Width | 8 in |
| Drum Mounting | Inboard |
| Drum Mount Type | Inboard |
| Drum Type | AAF |
| Dust Shield Recess Depth (C) | 19/32 in |
| Dust Shield Recess Diameter (B) | 13-55/64 in |
| Flange Thickness | 7/16 in |
| Hole Size | 21/32 in |
| Maximum Diameter | 12-3/8 in |
| Notes | 6 Equally Spaced Bolt Holes. 6 Paired Holes Equally Spaced |
| Overall Depth | 8-19/32 in |
| Overall Diameter | 14-1/8 in |
| Packaging | Individual / Bulk |
| Pilot Diameter | 8-1/2 in |
| Sidewall Offset (N) | 13/16 in |
| Squealer Band Width (K) | 1-59/64 in |
| VMRS Code | 013-017-006 |
| Weight | 75 lbs |
| Weight (lbs) | 34.02 kg (75 lb) |
| Wheel Type | Spoke |
| Width | 8 in |
Interchanges & Equivalent parts:
| 120347 |
| 120822 |
| 3174 |
| 52743-11 |
| 03120882002 |
| 2037890 |
| 3946063 |
| 7-4-224 |
| 7-4-232 |
| DW03120882 |
| DW03122963 |
| GUN 3174 |
| GUN3174 |
| TDA 03122963002 |
| WWD 63617F |
| X-60505 |
| X-60507 |
| X-60517 |
| X-60922 |
| ZBR3174 |
| 1202410 |
| 1202415 |
| 3175 |
| 3219-J-2610 |
| 3219-R-2280 |
| 3219-S-2281 |
| 3219-S-2981 |
| 52219-01 |
| 52743-01 |
| 63647 |
| 63822 |
| 68891 |
| 85832 |
| 86302 |
| 88152 |
| B-1911-1 |




















