Ultra-Fab | Electric Trailer Brake Assembly; Self-Adjusting, (12" X 2") | 48-979254 | 12" | 7,000lb | Left Hand (Driver Side) | Boxed

Ultra-Fab 48-979254 Self-Adjusting Electric Trailer Brake Assembly – Heavy-Duty Braking Performance for 7,000 lb Axles

Maintain safe, dependable stopping power with the Ultra-Fab 48-979254 Self-Adjusting Electric Trailer Brake Assembly, engineered for heavy-duty trailers equipped with 7,000 lb axles. Designed as a 12" x 2" left-hand (driver side) electric brake assembly, this premium replacement features an automatic self-adjusting mechanism that continuously maintains proper brake shoe clearance, eliminating the need for routine manual brake adjustments while delivering consistent braking performance.

Whether you're replacing worn-out brake assemblies or upgrading your trailer's braking system, this complete boxed assembly provides OEM-quality performance and serves as a direct replacement for many Dexter and Lippert brake assemblies. Premium bonded friction materials, a corrosion-resistant E-coated backing plate, and rugged construction ensure reliable braking in demanding towing applications.

Manufactured by Ultra-Fab Products, a trusted leader in the RV and trailer industry since 1958, this brake assembly is backed by an industry-leading 5-year limited warranty, providing long-lasting performance and confidence on every trip.

Key Features

Self-Adjusting Brake Technology

The integrated self-adjusting mechanism automatically maintains the correct brake shoe-to-drum clearance during normal operation, reducing maintenance while providing smooth, reliable, and consistent braking performance throughout the life of the brakes.

Heavy-Duty Electric Trailer Braking

Engineered for dependable stopping power, this electric brake assembly helps improve trailer control, towing safety, and braking confidence when hauling heavy loads over long distances or challenging terrain.

Premium Automotive-Grade Brake Shoes

High-quality automotive-grade friction material is fully bonded to the brake shoes, delivering maximum braking torque, longer service life, and improved resistance to cracking, separation, and premature wear.

Corrosion-Resistant E-Coated Backing Plate

The durable E-coated steel backing plate provides superior protection against rust, corrosion, moisture, road salt, and environmental damage, helping extend the life of the brake assembly in all weather conditions.

Easy Bolt-On Installation

Designed to fit standard 4-bolt brake mounting flanges, this complete pre-assembled brake assembly installs quickly with minimal downtime, making it an ideal direct replacement for factory brake assemblies.

OEM Replacement Compatibility

Direct replacement for:

• Dexter® 023-464-00
• Dexter® K23-464-00
• Lippert® 122SA12L
• Lippert® 296SA12L

Engineered for seamless installation and dependable OEM-level braking performance.

Specifications

• Brand: Ultra-Fab Products
• Manufacturer Part Number: 48-979254
• Brake Type: Electric Self-Adjusting
• Brake Diameter: 12 inches
• Brake Width: 2 inches
• Axle Capacity: 7,000 lbs
• Side: Left Hand (Driver Side)
• Mounting Pattern: Standard 4-Bolt Flange
• Backing Plate Finish: E-Coated Corrosion-Resistant Steel
• Brake Shoe Material: Automotive-Grade Bonded Friction Material
• Packaging: Boxed
• Warranty: 5-Year Limited Warranty

Fits

Compatible with most trailer axles featuring:

• 7,000 lb axle capacity
• 12" x 2" electric drum brakes
• Standard 4-bolt brake mounting flange

Ideal for:

• Travel Trailers
• Fifth Wheels
• Toy Haulers
• Equipment Trailers
• Utility Trailers
• Flatbed Trailers
• Cargo Trailers
• Car Haulers
• Horse Trailers
• Heavy-Duty RV Trailers

Why Choose the Ultra-Fab 48-979254?

• Automatic self-adjusting brake system reduces routine maintenance
• Heavy-duty stopping power for 7,000 lb trailer axles
• Premium bonded brake linings for maximum braking performance
• Corrosion-resistant E-coated backing plate extends service life
• Direct OEM replacement for Dexter and Lippert brake assemblies
• Fast and easy bolt-on installation
• Trusted Ultra-Fab quality since 1958
• Backed by an industry-leading 5-year limited warranty