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Set of two electric trailer brake assemblies with cast iron drums and steel backing plates

VEVOR

VEVOR Electric Trailer Brake Kit 10 x 2-1/4 in 3500 lbs Axle Specialty Appliance

SKU CH-3VD9-SGZB5

Electric trailer brake kit for 3500 lb axles with 10 x 2-1/4 inch drums, 12V electromagnets and a 30000 km service life

  • TypeOther Appliances
  • Width12.6
  • Designed for 3500 lbs trailer axles
  • 10 x 2-1/4 inch brake shoes deliver strong stopping force
  • DC12V electromagnet rated 450N magnetic force
  • Brake pads tested to 30000 km service life
  • Includes 2 complete kits with dust caps and hardware

Electric Trailer Brake Kit for 3500 lbs Axle

This kit supplies a complete electric braking system rated for axles up to 3500 lbs or 1587.6 kg. It includes two brake assemblies with four shoes and four drums, built from gray cast iron, SPHC and Q235 steel. The electromagnets operate at DC12V drawing 2.5 to 3.6A and produce 450N of magnetic force. The package also contains dust caps, nuts and a user manual.

Capacity and headroom for 10 inch drums

The 10 inch brake drums have a 5.63 inch bolt circle with five 1/2-20 UNF studs, while the backing plates use a 4 inch pattern with four 7/16-20 UNF bolts. Brake pads measure 2.26 by 0.19 inch with a 0.48 friction coefficient, providing stopping power for the rated axle weight. Service life is quoted at 30000 km before pad replacement is typically required.

Build integration with 4 bolt flange

Each assembly weighs 124.6 lbs total and fits a 4 bolt flange with 0.8 inch long studs. The shoe outer dimensions are 11.22 by 2.87 inch and the drum measures 10.83 by 5.28 inch overall. No hydraulic lines or controllers are included, so a compatible brake controller and wiring harness must be sourced separately to complete the installation.

Highlights

  • Designed for 3500 lbs trailer axles
  • 10 x 2-1/4 inch brake shoes deliver strong stopping force
  • DC12V electromagnet rated 450N magnetic force
  • Brake pads tested to 30000 km service life
  • Includes 2 complete kits with dust caps and hardware

Specifications

TypeOther Appliances
Width12.6

Questions about this item

Will the 4-bolt, 101.8 mm PCD flange fit the hubs already on my 3500 lbs axle?

The kit uses a 4-bolt flange with a 101.8 mm PCD and 7/16-20 UNF bolts; match those measurements to your existing hub flange before installing.

How can I confirm the electromagnets are drawing the correct current after wiring?

Each magnet runs on DC 12 V and should draw between 2.5 and 3.6 A; measure amperage at the brake wires with a multimeter while the controller is active.

Does the box include the 5-bolt, 143 mm PCD drum mounting nuts or must I source them?

The package supplies 2 complete brake assemblies, 4 dust caps and 5 nuts for the 5-bolt, 143 mm PCD drum pattern, plus a user manual.

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