Your search for "BK-12E-01SA BK-12E-02SA" revealed the following:

Left and Right Backing Plates Brake Electric 12" Import Nev-R-Adjust w/Nuts+Washers (BK-12E-01SA+BK-12E-02SA)

Left and Right Backing Plates Brake Electric 12" Import Nev-R-Adjust w/Nuts+Washers (BK-12E-01SA+BK-12E-02SA)

$139.99

BK-12E-01SA

Trailer Backing Plate Brake Electric 12" Aftermarket Self Adjust Left Hand 7000 (BK-12E-01SA)

$69.99

BK-12E-02SA

12" Electric Trailer Brake Backing Plate — Right Hand, 7K Axles (BK-12E-02SA)

$61.31

2 Pair of Trailer Backing Plate Brakes Electric 12" Self Adjust 7000 2 Left 2 Right (BK-12E-FSA-SETX2)

2 Pair of Trailer Backing Plate Brakes Electric 12" Self Adjust 7000 2 Left 2 Right (BK-12E-FSA-SETX2)

$233.94

Add Brakes & Hub/Drum Kit – 7,000 lb Trailer Axle – 12" x 2" Self-Adjusting Electric Brakes – 8 on 6.5" – 1/2"-20 Studs (92865-B-FSA-IMP)

Add Brakes & Hub/Drum Kit – 7,000 lb Trailer Axle – 12" x 2" Self-Adjusting Electric Brakes – 8 on 6.5" – 1/2"-20 Studs (92865-B-FSA-IMP)

$340.99

BK-12E-FSA-SET

Pair of Trailer Backing Plate Brakes Electric 12" Self Adjust 7000 Left Right (BK-12E-FSA-SET)

$139.99

92865-B-IMP-916

Add Brakes & Hub/Drum Kit – 7,000 lb Trailer Axle – 12" x 2" Self-Adjusting Electric Brakes – 8 on 6.5" – 9/16"-18 Studs (92865-B-FSA-IMP-916)

$364.95 ~~$391.42~~ Sale

Add Brakes Basic 6x5.5 Drum 12" Electric Self Adj Backing Plate 6K Trailer Axle (92655-B-FSA-IMP)

Add Brakes Basic 6x5.5 Drum 12" Electric Self Adj Backing Plate 6K Trailer Axle (92655-B-FSA-IMP)

$290.93

10" Drum 6x5.5 Bolt Pattern 3500# Rated with Self Adjusting Backing Plates (94655-B-IMP-FSA)

10" Drum 6x5.5 Bolt Pattern 3500# Rated with Self Adjusting Backing Plates (94655-B-IMP-FSA)

$246.88