M-Parts 2 Pairs of Self-Adjusting 12-1/4″ X 3-3/8″ (12.25″ X 3.375″) Electric Trailer Drum Brake Assemblies Kit for 8,000 Lbs (8K) Trailer Axles; 2 LH (77-1208-1) + 2 RH (77-1208-2)

Self-Adjusting Electric trailer brake assemblies that measure 12-1/4″ X 3-3/8″ with brake pads designed for utility trailers, travel trailers, horse trailer, motorcycle trailers, and more. These brakes are rated for 8,000 lbs and have a 4-bolt mounting flange bolt pattern. This product is compatible with most manufacturers and comes with a limited 1-year warranty. 2 pack (1 left and 1 right) or 4 pack (2 left and 2 right)

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General duty 12-1/4” X 3-3/8” Trailer Electric Brake Assembly that works with 8,000 lbs Dexter and Lippert (aka LCI) Trailer Axles
4” bolt circle, 3-7/8” center hole diameter
Axle rating: 8,000 lbs
Self-Adjusting Electric trailer brake
Limited 1-year warranty