Dexter's D44 4,400 lb manual-adjust electric brake is a 10 × 2¼-inch assembly with its own axle mounting-flange pattern. Factory diagrams identify the brake components and explain the key mounting change introduced in 2009.
Factory exploded and mounting-flange diagrams
The original Dexter reference provides the small callout numbers, component orientation and production changes. Select the diagram or photograph below to enlarge it.
Dexter 4.4K brake exploded drawing and service part numbers (PDF, printed page 36)
Dexter D44 2009 original vs revised mounting flange drawing (PDF)
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 | K23-462-00 | 1 | Left complete brake assembly, revised flange |
| 0 | K23-463-00 | 1 | Right complete brake assembly, revised flange |
| 1 | 036-019-19 | 1 | Revised brake backing plate |
| 2 | 047-019-05 / 047-020-05 | 1 | Left / right actuating lever arm |
| 3 | 005-067-00 | 1 | Washer used 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 | Earlier retractor springs, before March 2018 |
| 6 | K71-672-00 | 1 | 4.4K primary and secondary brake shoe kit |
| 7 | 043-004-00 | 1 | Brake adjuster assembly |
| 8 | 046-018-00 | 1 | Adjuster screw spring |
| 9 | K71-125-00 | 1 | Black-wire magnet kit |
| 10 | 046-007-00 | 2 | Adjuster slot plugs |
| 11 | 046-016-00 | 1 | Brake wire grommet |
| 12 | 007-271-00 | 4 | Press-in mounting bolts |
| 13 | 006-017-01 | 4 | Brake mounting nuts; not supplied with assembly |
Critical D44 flange identification
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.
Other Dexter parts diagrams
See the matching brake components
These images come from the pictured NewRVParts listings. Select a product to see its order number and additional details.
