Dexter's 10 × 1½-inch electric drum brake is a 3,000 lb axle brake size. Use the factory exploded illustration to identify its backing plate, spring arrangement, adjuster, shoe kit and electric magnet. Right and left assemblies have different part numbers.
See the matching brake components
These images come from the pictured NewRVParts listings. Select a product to see its order number and additional details.
Original Dexter manufacturer illustration
The original Dexter reference provides the small callout numbers, component orientation and production changes. On mobile, open the PDF to enlarge it.
The PDF can be enlarged on a phone to see small component numbers and dimensions.
Dexter 3K electric brake exploded diagram and part numbers (PDF, printed page 31)
Original exploded-view part numbers
Quantities are per brake. Some drawings show older and newer production versions; those alternate parts are not all fitted simultaneously. A diagram callout does not guarantee a component is sold separately.
| No. | Dexter part number | Qty. | Component |
|---|---|---|---|
| 0 | K23-472-00 | 1 | Left complete brake kit |
| 0 | K23-473-00 | 1 | Right complete brake kit |
| 1 | 036-134-03 | 1 | Brake backing plate assembly |
| 2 | 047-019-05 / 047-020-05 | 1 | Left / right actuating lever arm |
| 3 | 005-067-00 | 1 | Retaining washer, before March 2018 |
| 4 | 027-005-00 | 2 | Magnet wire clips |
| 5a | 046-056-00 | 1 | Retractor spring, after March 2018 |
| 5b | 046-009-00 | 2 | Retractor springs, before March 2018 |
| 6 | K71-046-00 | 1 | Brake shoe and lining kit |
| 7 | 043-004-00 | 1 | Brake shoe adjuster assembly |
| 8 | 046-018-00 | 1 | Adjuster screw spring |
| 9 | K71-104-00 | 1 | Magnet replacement kit, green wire |
| 10 | 046-007-00 | 2 | Adjuster slot plugs |
| 11 | 046-016-00 | 2 | Wire grommets |
| 12 | 007-041-00 | 4 | Press-in brake mounting bolts |
| 13 | 006-017-01 | 4 | Brake mounting nuts; not included with brake assembly |
Choose the correct 3K brake
Use Dexter's official service and installation instructions when working on trailer brakes. Check both sides of the axle, mounting, wiring and the condition of the complete braking system before returning the trailer to service.