At a Glance
- >Brake backing plate mounting flange
- >Five-hole mounting pattern
- >2.56" pilot hole diameter
- >Designed for B type trailer axles
- >Commonly used on 5,200 lb, 6,000 lb, and 7,000 lb axle assemblies
- Brand: Dexter
- SKU: 004-052-00
Match the part number, measurements and connection points that apply to your trailer.
| Hub Face | Measure hub face to hub face. |
|---|---|
| Spring Center | Measure mounting centers and confirm perch configuration. |
| Capacity | Match the required axle rating. |
| Brakes | Confirm brake type and flange configuration. |

Part Number: 004-052-00
This backing plate brake flange is designed for use with trailer brake assemblies on B type axles commonly found in 5,200 lb, 6,000 lb, and 7,000 lb trailer axle applications. The flange provides the mounting surface required to install electric or hydraulic brake backing plates onto a trailer axle tube.
The flange features a five-hole mounting pattern and a 2.56" pilot hole, which is a common configuration for mid-capacity trailer brake systems.
| Specification | Detail |
|---|---|
| Part Number | 004-052-00 |
| Mounting Holes | 5 |
| Pilot Hole Diameter | 2.56" |
| Axle Type | B Type |
| Typical Axle Ratings | 5,200 lb / 6,000 lb / 7,000 lb |
This flange is typically welded to the axle tube prior to brake installation. Always verify axle type, brake compatibility, and pilot hole size before welding or installation. Refer to brake manufacturer documentation for proper alignment and installation procedures.
Selected from R&P customer feedback for Trailer Axle / Running Gear products and related trailer service.
“Got me the axle I needed right away with custom spring perch setting.”
“Had a trailer made to my needs.ken was able to get it done and at a price that was very acceptable.i have bought parts there for 2 other trailers and always in stock”
“Quality work. Staff is polite. Great job welding a project for me. Didn't even want to charge me, so I bought them a case of Corona. They were ecstatic. I ever need a welding or like that R&P Carriages is #1 !!!!!”
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