
Upgrade your trailer with this premium 12.25" x 4" electric brake assembly, built for 10,000 lb heavy-duty trailer axles. Designed for Dexter Heavy-Duty Trailer Axles, this brake system ensures reliable stopping power and simplified installation.
Note: This brake assembly is not compatible with Rockwell, Texas Pride, or TK Trailer Axles and only fits Dexter Heavy-Duty Axles.
Single Brake Assembly:
-
Size: 12.25" x 4"
-
Capacity: 10,000 lb per axle
-
Side: Passenger Side Only (Right Hand)
-
Bolt Pattern: 7-Bolt Flange
- Heavy Duty
-
Shipment Specs: 1) 14x14x6 Box @ 19 lbs
Pair Set:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
Heavy-duty 10K capacity
-
7-bolt brake flange
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs
Complete Brake Kit:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
(1) Quart Axle Oil
-
(2) 10-56 Unitized Oil Seals – 4.506" O.D. / 3.125" I.D.
-
(2) 395S Inner Bearings – 4.331" I.D.
-
(2) 387A Outer Bearings – 2.250" I.D.
-
(2) 394A Inner Races – 4.331" O.D.
-
(2) 382A Outer Races – 2.810" O.D.
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs 1) 14x14x7 @ 28 lbs
Half Crate (20 Brakes Total):
-
(20) Driver Side Brake Assemblies – 12.25" x 4"
-
(20) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate/Pallet @ 800 lbs
Crate (80 Brakes Total):
-
(40) Driver Side Brake Assemblies – 12.25" x 4"
-
(40) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate @ 1560 lbs
Features:
-
Easy-to-Install: Only 7 bolts and 2 wires required for a full install (hardware sold separately)
-
Rear Adjustment Ports: Make brake adjustments fast and simple
-
Compatibility: Dexter Heavy-Duty Trailer Axles ONLY
-
Durable & Reliable: Built to perform under heavy loads and demanding trailer use
-
1-Year Manufacturer Warranty for peace of mind
New brake assemblies must be properly burnished to ensure optimal performance:
- Perform 20–30 brake applications
- Decelerate from 40 mph to 20 mph each time
- Allow brakes to cool between applications
Order Your 10K Electric Trailer Brake Assemblies Today
Whether you need a single assembly or crate quantities, The Trailer Parts Outlet provides high-quality, affordable trailer brake parts with fast shipping and top-tier support. If you're unsure about fitment or need help selecting the right setup, contact our experts — we're here to help!

Upgrade your trailer with this premium 12.25" x 4" electric brake assembly, built for 10,000 lb heavy-duty trailer axles. Designed for Dexter Heavy-Duty Trailer Axles, this brake system ensures reliable stopping power and simplified installation.
Note: This brake assembly is not compatible with Rockwell, Texas Pride, or TK Trailer Axles and only fits Dexter Heavy-Duty Axles.
Single Brake Assembly:
-
Size: 12.25" x 4"
-
Capacity: 10,000 lb per axle
-
Side: Passenger Side Only (Right Hand)
-
Bolt Pattern: 7-Bolt Flange
- Heavy Duty
-
Shipment Specs: 1) 14x14x6 Box @ 19 lbs
Pair Set:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
Heavy-duty 10K capacity
-
7-bolt brake flange
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs
Complete Brake Kit:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
(1) Quart Axle Oil
-
(2) 10-56 Unitized Oil Seals – 4.506" O.D. / 3.125" I.D.
-
(2) 395S Inner Bearings – 4.331" I.D.
-
(2) 387A Outer Bearings – 2.250" I.D.
-
(2) 394A Inner Races – 4.331" O.D.
-
(2) 382A Outer Races – 2.810" O.D.
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs 1) 14x14x7 @ 28 lbs
Half Crate (20 Brakes Total):
-
(20) Driver Side Brake Assemblies – 12.25" x 4"
-
(20) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate/Pallet @ 800 lbs
Crate (80 Brakes Total):
-
(40) Driver Side Brake Assemblies – 12.25" x 4"
-
(40) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate @ 1560 lbs
Features:
-
Easy-to-Install: Only 7 bolts and 2 wires required for a full install (hardware sold separately)
-
Rear Adjustment Ports: Make brake adjustments fast and simple
-
Compatibility: Dexter Heavy-Duty Trailer Axles ONLY
-
Durable & Reliable: Built to perform under heavy loads and demanding trailer use
-
1-Year Manufacturer Warranty for peace of mind
New brake assemblies must be properly burnished to ensure optimal performance:
- Perform 20–30 brake applications
- Decelerate from 40 mph to 20 mph each time
- Allow brakes to cool between applications
Order Your 10K Electric Trailer Brake Assemblies Today
Whether you need a single assembly or crate quantities, The Trailer Parts Outlet provides high-quality, affordable trailer brake parts with fast shipping and top-tier support. If you're unsure about fitment or need help selecting the right setup, contact our experts — we're here to help!

Upgrade your trailer with this premium 12.25" x 4" electric brake assembly, built for 10,000 lb heavy-duty trailer axles. Designed for Dexter Heavy-Duty Trailer Axles, this brake system ensures reliable stopping power and simplified installation.
Note: This brake assembly is not compatible with Rockwell, Texas Pride, or TK Trailer Axles and only fits Dexter Heavy-Duty Axles.
Single Brake Assembly:
-
Size: 12.25" x 4"
-
Capacity: 10,000 lb per axle
-
Side: Passenger Side Only (Right Hand)
-
Bolt Pattern: 7-Bolt Flange
- Heavy Duty
-
Shipment Specs: 1) 14x14x6 Box @ 19 lbs
Pair Set:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
Heavy-duty 10K capacity
-
7-bolt brake flange
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs
Complete Brake Kit:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
(1) Quart Axle Oil
-
(2) 10-56 Unitized Oil Seals – 4.506" O.D. / 3.125" I.D.
-
(2) 395S Inner Bearings – 4.331" I.D.
-
(2) 387A Outer Bearings – 2.250" I.D.
-
(2) 394A Inner Races – 4.331" O.D.
-
(2) 382A Outer Races – 2.810" O.D.
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs 1) 14x14x7 @ 28 lbs
Half Crate (20 Brakes Total):
-
(20) Driver Side Brake Assemblies – 12.25" x 4"
-
(20) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate/Pallet @ 800 lbs
Crate (80 Brakes Total):
-
(40) Driver Side Brake Assemblies – 12.25" x 4"
-
(40) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate @ 1560 lbs
Features:
-
Easy-to-Install: Only 7 bolts and 2 wires required for a full install (hardware sold separately)
-
Rear Adjustment Ports: Make brake adjustments fast and simple
-
Compatibility: Dexter Heavy-Duty Trailer Axles ONLY
-
Durable & Reliable: Built to perform under heavy loads and demanding trailer use
-
1-Year Manufacturer Warranty for peace of mind
New brake assemblies must be properly burnished to ensure optimal performance:
- Perform 20–30 brake applications
- Decelerate from 40 mph to 20 mph each time
- Allow brakes to cool between applications
Order Your 10K Electric Trailer Brake Assemblies Today
Whether you need a single assembly or crate quantities, The Trailer Parts Outlet provides high-quality, affordable trailer brake parts with fast shipping and top-tier support. If you're unsure about fitment or need help selecting the right setup, contact our experts — we're here to help!

Upgrade your trailer with this premium 12.25" x 4" electric brake assembly, built for 10,000 lb heavy-duty trailer axles. Designed for Dexter Heavy-Duty Trailer Axles, this brake system ensures reliable stopping power and simplified installation.
Note: This brake assembly is not compatible with Rockwell, Texas Pride, or TK Trailer Axles and only fits Dexter Heavy-Duty Axles.
Single Brake Assembly:
-
Size: 12.25" x 4"
-
Capacity: 10,000 lb per axle
-
Side: Passenger Side Only (Right Hand)
-
Bolt Pattern: 7-Bolt Flange
- Heavy Duty
-
Shipment Specs: 1) 14x14x6 Box @ 19 lbs
Pair Set:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
Heavy-duty 10K capacity
-
7-bolt brake flange
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs
Complete Brake Kit:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
(1) Quart Axle Oil
-
(2) 10-56 Unitized Oil Seals – 4.506" O.D. / 3.125" I.D.
-
(2) 395S Inner Bearings – 4.331" I.D.
-
(2) 387A Outer Bearings – 2.250" I.D.
-
(2) 394A Inner Races – 4.331" O.D.
-
(2) 382A Outer Races – 2.810" O.D.
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs 1) 14x14x7 @ 28 lbs
Half Crate (20 Brakes Total):
-
(20) Driver Side Brake Assemblies – 12.25" x 4"
-
(20) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate/Pallet @ 800 lbs
Crate (80 Brakes Total):
-
(40) Driver Side Brake Assemblies – 12.25" x 4"
-
(40) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate @ 1560 lbs
Features:
-
Easy-to-Install: Only 7 bolts and 2 wires required for a full install (hardware sold separately)
-
Rear Adjustment Ports: Make brake adjustments fast and simple
-
Compatibility: Dexter Heavy-Duty Trailer Axles ONLY
-
Durable & Reliable: Built to perform under heavy loads and demanding trailer use
-
1-Year Manufacturer Warranty for peace of mind
New brake assemblies must be properly burnished to ensure optimal performance:
- Perform 20–30 brake applications
- Decelerate from 40 mph to 20 mph each time
- Allow brakes to cool between applications
Order Your 10K Electric Trailer Brake Assemblies Today
Whether you need a single assembly or crate quantities, The Trailer Parts Outlet provides high-quality, affordable trailer brake parts with fast shipping and top-tier support. If you're unsure about fitment or need help selecting the right setup, contact our experts — we're here to help!

Upgrade your trailer with this premium 12.25" x 4" electric brake assembly, built for 10,000 lb heavy-duty trailer axles. Designed for Dexter Heavy-Duty Trailer Axles, this brake system ensures reliable stopping power and simplified installation.
Note: This brake assembly is not compatible with Rockwell, Texas Pride, or TK Trailer Axles and only fits Dexter Heavy-Duty Axles.
Single Brake Assembly:
-
Size: 12.25" x 4"
-
Capacity: 10,000 lb per axle
-
Side: Passenger Side Only (Right Hand)
-
Bolt Pattern: 7-Bolt Flange
- Heavy Duty
-
Shipment Specs: 1) 14x14x6 Box @ 19 lbs
Pair Set:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
Heavy-duty 10K capacity
-
7-bolt brake flange
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs
Complete Brake Kit:
-
(1) Driver Side Brake Assembly – 12.25" x 4"
-
(1) Passenger Side Brake Assembly – 12.25" x 4"
-
(1) Quart Axle Oil
-
(2) 10-56 Unitized Oil Seals – 4.506" O.D. / 3.125" I.D.
-
(2) 395S Inner Bearings – 4.331" I.D.
-
(2) 387A Outer Bearings – 2.250" I.D.
-
(2) 394A Inner Races – 4.331" O.D.
-
(2) 382A Outer Races – 2.810" O.D.
-
Shipment Specs: 2) 14x14x6 Box @ 19 lbs 1) 14x14x7 @ 28 lbs
Half Crate (20 Brakes Total):
-
(20) Driver Side Brake Assemblies – 12.25" x 4"
-
(20) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate/Pallet @ 800 lbs
Crate (80 Brakes Total):
-
(40) Driver Side Brake Assemblies – 12.25" x 4"
-
(40) Passenger Side Brake Assemblies – 12.25" x 4"
-
Shipment Specs: 1) Crate @ 1560 lbs
Features:
-
Easy-to-Install: Only 7 bolts and 2 wires required for a full install (hardware sold separately)
-
Rear Adjustment Ports: Make brake adjustments fast and simple
-
Compatibility: Dexter Heavy-Duty Trailer Axles ONLY
-
Durable & Reliable: Built to perform under heavy loads and demanding trailer use
-
1-Year Manufacturer Warranty for peace of mind
New brake assemblies must be properly burnished to ensure optimal performance:
- Perform 20–30 brake applications
- Decelerate from 40 mph to 20 mph each time
- Allow brakes to cool between applications
Order Your 10K Electric Trailer Brake Assemblies Today
Whether you need a single assembly or crate quantities, The Trailer Parts Outlet provides high-quality, affordable trailer brake parts with fast shipping and top-tier support. If you're unsure about fitment or need help selecting the right setup, contact our experts — we're here to help!