At a Glance
- SKU: 023-438-00
PRODUCT INFORMATION
Product Details
12.25" x4" Electric Brake Backing Plate Trailer Left Side 10K HD axle 9-27 Drum (023-438-00)
Part # 023-438-00
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Dexter 12.25" x 4" 10,000 lb Nev-R-Adjust Electric Brake – RIGHT
Part Number: 023-439-00 | Dexter Ref: 23-439
RIGHT (passenger side) 12-1/4" x 4" Dexter Nev-R-Adjust electric brake assembly for 10,000 lb heavy-duty 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”.This listing is for one brake assembly.
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 reduces the need for manual brake adjustments during regular 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 compared to lighter-duty assemblies.
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.
Confirm drum diameter, shoe width, and flange bolt count prior to replacement.When servicing an axle, always pair correct left and right assemblies.
Verify specifications before installation.
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