12-1/4" x 3-3/8" Hydraulic Drum Trailer Brake Assembly Pair – 8000 lb Axles 

Upgrade your trailer’s stopping power with this 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly, (pair) left-hand (driver side) & right-hand (passenger side), self-adjusting. Designed for 8K trailer axles, this assembly fits popular brands like Dexter, TK, Lippert, and Texas Pride, making replacements simple and reliable.  

Specs:

• Brake Position: Right Hand Side & Left Hand Side
• Brake Type: Hydraulic Drum
• Brake Size: 12-1/4" x 3-3/8"
• Mounting Flange: 4-Bolt
• Axle Rating: 8,000 lb
• Adjustment: Self-Adjust
• Backing: Free-Backing
• Compatibility: Dexter, TK, Lippert, Texas Pride
• Warranty: 1 Year
• Ready to Ship-Package Specs: (2) 14"x14"x5" Box @ 16 lbs

What's Included:

• (1) Left-hand (Driver Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly
• (1) Right-hand (Passenger Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly

Features: 

• Easy Installation – Mounts with a 4-bolt brake flange and connects with just two wires (sold separately).
• Simple Maintenance – Rear adjustment ports allow fast and precise brake adjustments.
• Durable Construction – Built to handle heavy loads and demanding road conditions.
• Trusted Quality – Backed by a 1-year warranty from The Trailer Parts Outlet.

Burnishing Instructions:

To achieve optimal braking performance, burnish new brakes by performing 20–30 gradual stops from approximately 40 mph to 20 mph, allowing brakes to cool between each application.

Why Buy From The Trailer Parts Outlet?

We make trailer repairs simple. Whether you’re upgrading your fleet or replacing worn-out components, our premium hydraulic drum trailer brake assemblies are engineered for strength, reliability, and safety. Order online today and get your trailer back on the road with confidence!

12-1/4" x 3-3/8" Hydraulic Drum Trailer Brake Repair Kit – 8000 lb Axles

Upgrade and fully service your 8K trailer axle with this complete 12-1/4" x 3-3/8" Hydraulic Drum Brake Repair Kit. This all-in-one package includes left-hand (driver side) and right-hand (passenger side) self-adjusting brake assemblies, along with bearings, races, seals, grease, and installation hardware - everything you need for a full hub and brake refresh.

Designed to fit popular axle brands including Dexter, TK, Lippert, and Texas Pride, this kit makes repairs simple, reliable, and cost-effective.

Specs:

• Brake Position: Left Hand (Driver) & Right Hand (Passenger)
• Brake Type: Hydraulic Drum
• Brake Size: 12-1/4" x 3-3/8"
• Mounting Flange: 4-Bolt
• Axle Rating: 8,000 lb
• Adjustment: Self-Adjusting
• Backing: Free-Backing
• Compatibility: Dexter, TK, Lippert, Texas Pride
• Warranty: 1 Year

What’s Included:

• (1) Left-hand (Driver Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly
• (1) Right-hand (Passenger Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly
• (2) 25580 Inner Bearing - 1.750" ID
• (2) 02475 Outer Bearing - 1.250" ID
• (2) 25520 Inner Race - 3.265" OD
• (2) 02420 Outer Race - 2.688" OD
• (2) 10-36 Double Lip Grease Seal - 3.376" OD 2.250" ID
• (1) Grease Tub/Tube
• (2) 8K Dust/Grease Cap with Plug
• (2) Cotter Pin
• (2) Tang Washer

Features:

• Complete Overhaul Kit - Service both brakes and hub components at once.
• Easy Installation - Mounts to a 4-bolt brake flange and connects with two wires (sold separately).
• Simple Maintenance - Rear adjustment ports allow fast and precise brake adjustments.
• Durable Construction - Built to handle heavy loads and demanding road conditions.
• Trusted Quality - Backed by a 1-year warranty from The Trailer Parts Outlet.

Burnishing Instructions:

To achieve optimal braking performance, burnish new brakes by performing 20–30 gradual stops from approximately 40 mph to 20 mph, allowing brakes to cool between each application.

Why Buy From The Trailer Parts Outlet?

We make trailer repairs simple. Whether you're replacing worn-out components or completing a full axle service, this hydraulic drum brake repair kit provides everything you need in one convenient package. Engineered for strength, reliability, and safety - order online today and get your trailer back on the road with confidence.

Complete Axle Service Kit – 8K Trailer Axles – 8 Lug – 9/16" Stud

Service your 8,000 lb trailer axle with one complete, ready-to-install kit. This Complete Axle Service Kit includes greased hub & drums, brake assemblies, bearings, races, seals, grease, and all necessary installation hardware - eliminating the need to source components separately.

Built for durability and dependable performance, this kit is designed to fit popular 8K trailer axles including Dexter, TK, Lippert, Texas Pride, and other compatible setups.

Hub and Drum Specs:

• Axle Rating: 8,000 lb
• Hub/Drum Capacity: 4000 lb each
• Bolt Pattern: 8x6.5” Lug
• Wheel Stud Size: 9/16"
• Pilot Diameter: 4.56” (Old Style)

Brake Assembly Specs:

• Brake Size: 12-1/4" x 3-3/8"
• Brake Type: Hydraulic Drum
• Mounting Flange: 4-Bolt
• Adjustment: Self-Adjusting
• Compatibility: Dexter, TK, Lippert, Texas Pride
• Warranty: 1 Year

What’s Included:

• (2) 8K True TK Trailer Axle Hub and Drum - 8 Lug - 9/16"
• (1) Left-hand (Driver Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly
• (1) Right-hand (Passenger Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assembly
• (2) 25580 Inner Bearings - 1.750" ID
• (2) 02475 Outer Bearings - 1.250" ID
• (2) 25520 Inner Races - 3.265" OD
• (2) 02420 Outer Races - 2.688" OD
• (2) 10-36 Double Lip Grease Seals - 3.376" OD 2.250" ID
• (1) Grease Tub/Tube
• (2) 8K Dust/Grease Caps with Plug
• (2) Cotter Pins
• (2) Tang Washers
• (16) Cone Wheel Lug Nuts

Features:

• Complete Axle Overhaul Solution - Replace hubs, brakes, bearings, and hardware all at once.
• Heavy-Duty Construction - Built to handle demanding loads and road conditions.
• Easy Installation - 4-bolt brake mounting and standard 8-lug hub configuration.
• Trusted Quality - Backed by a 1-year warranty from The Trailer Parts Outlet.

Burnishing Instructions:

To achieve optimal braking performance, burnish new brakes by performing 20–30 gradual stops from approximately 40 mph to 20 mph, allowing brakes to cool between each application.

Why Buy From The Trailer Parts Outlet?

We make trailer repairs simple. Whether you're performing scheduled maintenance or a full axle rebuild, this complete axle service kit delivers everything you need in one convenient package. Engineered for strength, reliability, and safety - order online today and get your trailer back on the road with confidence.

12-1/4" x 3-3/8" Hydraulic Drum Trailer Brake Assembly Half Crate - 8K Axles

(40 Assemblies – 20 Left Hand / 20 Right Hand)

Stock your shop, fleet, or dealership with this Half Crate of 12-1/4" x 3-3/8" Hydraulic Drum Brake Assemblies. Designed for 8,000 lb trailer axles, this bulk package includes 20 left-hand (driver side) and 20 right-hand (passenger side) self-adjusting brake assemblies - perfectly balanced for high-volume service and axle replacements.

Ideal for trailer manufacturers, repair shops, fleet maintenance operations, and wholesale buyers looking for dependable inventory at scale.

Half Crate Includes:

• (20) Left-Hand (Driver Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assemblies
• (20) Right-Hand (Passenger Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assemblies
• Total: 40 Brake Assemblies

Specs:

• Brake Type: Hydraulic Drum
• Brake Size: 12-1/4" x 3-3/8"
• Brake Position: 20 LH / 20 RH
• Mounting Flange: 4-Bolt
• Axle Rating: 8,000 lb
• Adjustment: Self-Adjusting
• Backing: Free-Backing
• Compatibility: Dexter, TK, Lippert, Texas Pride
• Warranty: 1 Year

Features:

• Bulk Wholesale Packaging - Balanced LH/RH quantities for efficient axle service.
• Self-Adjusting Design - Reduces maintenance time and improves braking consistency.
• Heavy-Duty Construction - Built for demanding commercial and fleet applications.
• Easy Installation - Mounts to a standard 4-bolt brake flange and connects with two wires (sold separately).
• Shop-Ready Inventory - Keep high-turn brake assemblies in stock and ready to move.

Burnishing Instructions:

To achieve optimal braking performance, burnish new brakes by performing 20-30 gradual stops from approximately 40 mph to 20 mph, allowing brakes to cool between each application.

Why Buy From The Trailer Parts Outlet?

We support trailer dealers, manufacturers, and repair facilities with dependable bulk inventory solutions. Our hydraulic drum brake assemblies are engineered for strength, reliability, and consistent performance - making them a trusted choice for high-volume service operations.

Order your half crate today and keep your shop stocked with quality brake assemblies you can rely on.

12-1/4" x 3-3/8" Hydraulic Drum Trailer Brake Assembly Crate - 8K Axles

(80 Assemblies – 40 Left Hand / 40 Right Hand)

Stock your shop, fleet, or dealership with this Crate of 12-1/4" x 3-3/8" Hydraulic Drum Brake Assemblies. Designed for 8,000 lb trailer axles, this bulk package includes 40 left-hand (driver side) and 40 right-hand (passenger side) self-adjusting brake assemblies - perfectly balanced for high-volume service and axle replacements.

Ideal for trailer manufacturers, repair shops, fleet maintenance operations, and wholesale buyers looking for dependable inventory at scale.

Half Crate Includes:

• (40) Left-Hand (Driver Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assemblies
• (40) Right-Hand (Passenger Side) 12-1/4" x 3-3/8" Hydraulic Drum Brake Assemblies
• Total: 80 Brake Assemblies

Specs:

• Brake Type: Hydraulic Drum
• Brake Size: 12-1/4" x 3-3/8"
• Brake Position: 20 LH / 20 RH
• Mounting Flange: 4-Bolt
• Axle Rating: 8,000 lb
• Adjustment: Self-Adjusting
• Backing: Free-Backing
• Compatibility: Dexter, TK, Lippert, Texas Pride
• Warranty: 1 Year

Features:

• Bulk Wholesale Packaging - Balanced LH/RH quantities for efficient axle service.
• Self-Adjusting Design - Reduces maintenance time and improves braking consistency.
• Heavy-Duty Construction - Built for demanding commercial and fleet applications.
• Easy Installation - Mounts to a standard 4-bolt brake flange and connects with two wires (sold separately).
• Shop-Ready Inventory - Keep high-turn brake assemblies in stock and ready to move.

Burnishing Instructions:

To achieve optimal braking performance, burnish new brakes by performing 20-30 gradual stops from approximately 40 mph to 20 mph, allowing brakes to cool between each application.

Why Buy From The Trailer Parts Outlet?

We support trailer dealers, manufacturers, and repair facilities with dependable bulk inventory solutions. Our hydraulic drum brake assemblies are engineered for strength, reliability, and consistent performance - making them a trusted choice for high-volume service operations.

Order your crate today and keep your shop stocked with quality brake assemblies you can rely on.