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- SKU: 023-439-00
PRODUCT INFORMATION
Product Details
12.25" x 4" Brake Back Plate Self Adjust Trailer Right Side 10000 Heavy Duty Cap (023-439-00)
Part # 023-439-00
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Dexter 12.25" x 4" 10,000 lb Nev-R-Adjust Electric Brake – RIGHT (Passenger Side)
Part Number: 023-439-00 | Dexter Ref: 23-439
One RIGHT (passenger side) 12-1/4" x 4" Dexter Nev-R-Adjust electric brake assembly for 10,000 lb heavy-duty trailer axles.Fully assembled and ready to mount to a 7-bolt brake flange.Designed for use with 12-1/4" electric brake drums commonly marked “9-27”.
Use Case – Tandem & Triple Axle Equipment Trailers
Used on high-capacity tandem and triple axle trailers requiring consistent electric braking across multiple axles.The self-adjusting mechanism maintains proper shoe-to-drum clearance and reduces manual adjustment during service intervals.
Use Case – Agricultural & Industrial Hauling
Commonly installed on agricultural and industrial trailers transporting heavy loads.The 12.25" x 4" shoe width provides increased braking surface area for higher load demands.
Specifications
| Specification | Details |
|---|---|
| Brake Type | Electric Drum – Nev-R-Adjust |
| Drum Size | 12.25" Diameter x 4" Wide |
| Axle Rating | 10,000 lb Heavy Duty |
| Mounting Pattern | 7-Bolt Flange |
| Side | Right (Passenger Side) |
| Typical Drum Marking | 9-27 |
R&P Knowledge Hub
Electric drum brake assemblies rely on proper orientation to function correctly.Left and right assemblies are not interchangeable due to internal actuation direction.
Always confirm drum diameter, shoe width, and flange bolt count prior to replacement.When servicing an axle, replace both sides as a matched left and right pair when possible.
Verify specifications before installation.
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