This Dexter 7,000 lb manual-adjust electric brake has a 12-inch drum diameter and 2-inch shoe width. The numbered factory drawing shows the right- and left-hand assembly numbers alongside the shoe kit, magnet, retractor springs and manual adjuster hardware.

Dexter original exploded brake assembly diagram

See the exploded view and part-number legend in Dexter's light-duty axle catalog, printed page 71. The drawing shows which service parts share a callout and which belong to the left or right brake.

View the numbered Dexter diagram

Open the original manufacturer PDF and navigate to printed page 71 to enlarge the brake assembly.

Open Dexter's exploded view — printed page 71 (PDF)

Original manufacturer document: Dexter Light Duty Catalog LIT-122-00, 600–8,000 lb axle capacity.

Parts by factory drawing reference

The manufacturer numbers below describe individual components or complete brake kits. A blank product column means no exact, suitably documented current purchase link is provided. A brake kit beginning K23 is a different catalog number from an assembly beginning 023.

Callout Dexter number Part NewRVParts
0 K23-180-00 Left-hand complete manual-adjust brake kit
0 K23-181-00 Right-hand complete manual-adjust brake kit
Assembly 023-181-00 Right-hand manual-adjust brake assembly View product
1 036-089-10 Backing plate assembly used after March 2018
2 047-107-05 Left-hand actuating lever arm
2 047-108-05 Right-hand actuating lever arm
3 027-005-00 Magnet wire clip
4a 046-009-00 Dual retractor spring; before March 2018 and after November 2019
4b 046-005-00 Single retractor spring; March 2018–November 2019
5 K71-127-00 Factory shoe-and-lining kit, reference only
6 043-004-00 Manual brake adjuster
7 046-018-00 Adjusting screw spring
8 K71-125-00 Magnet service kit, black lead View product
9 046-007-00 Adjuster slot plugs
10 046-016-00 Magnet wire grommet
11 005-067-00 Anchor-post washer
12 006-193-00 Nut and washer set, separately serviced

Matching NewRVParts product photographs

Compare these existing catalog products with the component number on your brake. The diagram is an identification reference; always confirm the axle, brake diameter, lining width and left/right side before ordering.

Dexter Axle Right Electric Trailer Brake - 12 in x 2 in – 023-181-00 — part 023-181-00 from NewRVParts
Dexter Axle Right Electric Trailer Brake - 12 in x 2 in – 023-181-00Complete brake assembly. Compare orientation, dimensions and original part number.
Dexter Axle Trailer Brake Magnet – K71-125-00 — part K71-125-00 from NewRVParts
Dexter Axle Trailer Brake Magnet – K71-125-00Magnet replacement service kit. Compare orientation, dimensions and original part number.

Choose the right brake and repair parts

The right-hand complete brake assembly is 023-181-00, while 023-180-00 is the left-hand counterpart. Dexter's 6,000 lb 12 × 2-inch brake is a distinct model family with a different magnet kit, so axle rating and the full original assembly marking matter. This page covers manual-adjust brakes, not the separate Nev-R-Adjust mechanism.

For the 12-inch 7K brake, the catalog identifies dual springs 046-009-00 for the earlier and later configurations and the interim single spring 046-005-00. Dexter's bulletin specifies matching spring and anchor-post designs when servicing individual components, rather than combining parts from the different revisions.

K71-125-00 is Dexter's magnet kit for the 7K family and is linked to an exact NewRVParts listing. K71-127-00 is listed in the exploded chart as the shoe-and-lining kit, but its existing store description needs a dimension check, so it is not linked from this page.

Read Dexter's spring-construction product bulletin (PDF)

See Dexter's brake magnet identification bulletin (PDF)

Brake service: Trailer brakes are safety-critical. Support the trailer securely, follow the Dexter brake service manual and verify the correct torque, break-in and wiring procedure. Do not combine incompatible spring and anchor components.

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