9K-10K GD Electric Trailer Brake Assembly – Right Hand – Self Adjust – 12-1/4 x 3-3/8″

9K-10K GD Electric Trailer Brake Assembly – Right Hand – Self Adjust – 12-1/4 x 3-3/8″

(1 customer review)


Enhance your trailer’s braking with the Electric Trailer Brake Assembly (77-1210-2) for 9,000 lb-10,000 lb axles, exclusively available at Mrovi Trailer Parts. This right-hand assembly features self-adjusting brakes for optimal efficiency without manual adjustment. Fully assembled and compatible with 16″, 16.5″, 17″, and 17.5″ wheels, it’s ideal for Flatbed, Equipment, and Dual Tandem Trailers. Ensure durability with Mrovi Trailer Parts’ top-quality replacement parts. Swift 24-hour delivery services are available to PA, MD, VA, CT, NY, MA, NJ, RI, NH, VT. Order now for reliable and efficient braking on your trailer.


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Mrovi Trailer Parts presents its Electric Trailer Brake Assembly, designed specifically for right-hand installation on 9,000 lb to 10,000 lb trailer axles. This self-adjusting brake assembly is a crucial component for trailers requiring high-end braking performance, especially in heavy-duty applications.

Key Features and Specifications:

  • Axle Compatibility: Designed for 9,000 lb to 10,000 lb trailer axles, ensuring robust support and durability.
  • Brake Type: Electric drum brakes tailored for the right-hand (passenger side) of the trailer.
  • Self-Adjustment Feature: Automatically adjusts to deliver optimal performance and braking power with minimal maintenance.
  • Construction: Fully assembled with shoes, springs, and magnets attached to the backing plate for immediate installation.
  • Drum Dimensions: Features a drum diameter of 12-1/4″ and a width of 3-3/8″.
  • Wheel Compatibility: Suitable for 16″, 16.5″, 17″, and 17.5″ wheels.
  • Mounting: 7-hole brake flange configuration; note that mounting hardware is not included.
  • SKU: 77-1210-2.

Use Cases: Ideal for Flatbed Trailers, Equipment Trailers, and Dual Tandem Trailers, this brake assembly is perfect for trailers used in heavy-duty sectors such as construction, agriculture, and commercial transportation.

Why Choose Mrovi Trailer Parts’ Brake Assembly? Choosing Mrovi Trailer Parts guarantees a product that combines superior quality with reliability. This electric brake assembly, with its self-adjusting feature, provides efficient braking with minimal maintenance, making it a vital component for heavy-duty trailers.

Installation Process and Guidelines:

  • Preparation: Ensure the axle and brake flange are clean and free from damage.
  • Mounting: Align and secure the assembly to the right-hand side of the axle using the 7-hole brake flange pattern.
  • Electrical Connection: Properly connect the brake assembly to the trailer’s electrical system, ensuring a secure and reliable connection.

Installation Tips:

  1. Compatibility: Verify that the brake assembly is compatible with your trailer’s 9,000 lb to 10,000 lb axle specifications.
  2. Right-Hand Installation: Ensure the assembly is correctly mounted on the right-hand side of the trailer.
  3. Electrical Safety: Follow all electrical safety protocols when connecting the brake system.
  4. Mounting Hardware: Prepare the necessary mounting hardware, which is not included in the package.

Final Thoughts: Mrovi Trailer Parts’ Electric Trailer Brake Assembly for 9K-10K axles is an essential upgrade for heavy-duty trailers, enhancing safety and braking efficiency. The self-adjusting mechanism and compatibility with various wheel sizes make it a convenient and effective solution for trailer maintenance.

Key Specifications:

  • Drum Brakes
  • Right Hand (Passenger Side)
  • Electric
  • Drum Diameter: 12-1/4″
  • Drum Width: 3-3/8″
  • Self Adjust
  • 9,000 lb-10,000 lb General Duty Axle
  • Compatible with Dexter and Lippert Axles
  • Compatible with 16″, 16.5″, 17″, and 17.5″ Wheels
  • 7 Hole Brake Flange
  • Mounting Hardware Not Included
  • Mrovi Trailer Parts Exclusive Part Number: 77-1210-2

Product Information: Electric brakes on your trailer operate similarly to the drum brakes on your automobile, with the key difference being the actuation method – electromagnet instead of hydraulic pressure. Ensure the longevity of your trailer by using Mrovi Trailer Parts’ top-of-the-line, durable, and quality replacement parts.

Order the Electric Trailer Brake Assembly (77-1210-2) today for reliable and efficient braking on your trailer.

Additional information

Weight 20 lbs
Dimensions 14 × 14 × 6 in

1 review for 9K-10K GD Electric Trailer Brake Assembly – Right Hand – Self Adjust – 12-1/4 x 3-3/8″

  1. Jason Webster

    My trailer broke down on Saturday night and I was back on the road with y’all’s brakes on Sunday! This place is great they delivered the parts to me at the truck stop where I was broken down. Who else is going to do that to help you get back on the road, nobody!! If I could give you 10 star rating I would. I am definitely going to continue buying from them.

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