What Is The Difference Between Dexter ABS 4400lbs And 3500lbs Brake Assemblies? Both Are 10"
Updated 11/03/2025 | Published 10/28/2025
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Question:
What’s the difference between the Dexter 4.4K and 3.5K ABS brake assemblies? They both look like 10-inch brakes.
asked by: Allen
Expert Reply:
Good catch, Allen - both the 3.5K # DX73WR and 4.4K # DX83WR use 10 inch x 2-1/4 inch shoes, but the 4.4K version is built for a heavier spindle and a different bearing combo. The 4.4K uses L68149 inner and LM67048 outer bearings, while the 3.5K uses L68149 and L44649. The backing plates are different bolt patterns and the sensors are tuned for those axle specs, so they’re not interchangeable.
If you’re unsure which axle you’ve got, measuring your tube diameter (2-3/8 inch for 3,500lbs vs 3 inch for 4400lbs) or reading the bearing numbers will confirm it.
Product Page this Question was Asked From
Dexter Electric Trailer Brake for Dexter ABS Tow Assist - 10" - Left/Right Hand - 3.5K
- Trailer Brakes
- Electric Drum Brakes
- Standard Grade
- ABS
- Self Adjust
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- Dexter
more information >
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Allen
11/3/2025
Thanks, Andrew. That clears it up. My trailer is a 2022 Jayco Eagle HT and the axle tag says 4,400 lbs, but I just wanted to make sure since both brakes looked almost identical online. I’ll double-check my bearings before ordering.