Demco vs. etrailer Hydraulic Dacromet 3,500 lb Trailer Brakes
Question:
I have a 1973 calkins trailer with hydraulic brakes.... re your part numbers Item 40716-15 Item AKUBRK-35-D they both appear to be 10”drum x2.25” shoe width, and 4 mount holes C-C 2.875” maybe 7/16” bolt not sure 1 what is the country of manufacturer? 2 For a boat trailer, which is better and why? 3 Which finish prevents corrosion better? 4 Any other key differences? Thanks Ed
asked by: Ed
Expert Reply:
Hi Ed,
In regards to the 3,500 lb Demco Hydraulic Brake Kit # 40716-15 and the Hydraulic Trailer Brake Kit # AKUBRK-35-D, starting with the country of origin, the Demco are made in the U.S. and the opposing brakes (made by AxleTek) are made in China. They are both designed for a boat trailer because of their corrosion resistance, but the better option is the Demco # 40716-15.
The reason for that is because they are free-backing brakes, which means you can back up without the brakes engaging, while the other option requires an actuator with a lockout.
The finish that better prevents corrosion is the Demco, as it is stainless steel along with being galvanized. The only other key difference is the hardware needed. The # AKUBRK-35-D needs Mounting Hardware # BRKH10B. The Demco # 40716-15 requires Mounting Hardware # BRKH10A.
Products Referenced in This Question
Demco Hydraulic Brake Kit - Free Backing - Galvanized - 10" - Left/Right Hand Assemblies - 3.5K
- Trailer Brakes
- Hydraulic Drum Brakes
- Marine Grade
- Free Backing
- Manual Adjust
- Single Servo
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- Demco
more information >
Mounting Bolts and Hardware for 10" Brake Assemblies
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- Hydraulic Drum Brakes
- Hardware
- 10 Inch
- Bolts
- Redline
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Mounting Hardware for 10" Brake Assemblies
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- Hydraulic Drum Brakes
- Hardware
- 10 Inch
- Redline
more information >
Product Page this Question was Asked From
Hydraulic Trailer Brake Kit - Uni-Servo - Dacromet - 10" - Left/Right Hand Assemblies - 3.5K
- Trailer Brakes
- Hydraulic Drum Brakes
- Marine Grade
- Manual Adjust
- Single Servo
- 10 x 2-1/4 Inch Drum
- 3500 lbs Axle
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- etrailer
more information >
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on Trailer Brakes
Ed
5/2/2024
Thanks Kyle. Is there a dwg or cut sheet that shows mounting center-center dimensions and hole sizes for the 40716-15? Looks like mine uses four 7/16” mount bolts in 0.450” holes that measure center-center 2.810” Will I need to mark and ream holes to get it to fit?