
This 4-foot flexible rubber brake hose is DOT approved and designed for hydraulic trailer brake systems, making it suitable for use on boat trailers and other trailers with hydraulic braking systems. Typically used in tandem axle setups, the hose connects the front axle to the next using T-fittings. Rated for high-pressure applications, it is ideal for drum or disc brakes, including systems using surge couplers or electric-over-hydraulic units. The hose is UV resistant, making it perfect for sun and saltwater exposure, ensuring long-term durability in harsh environments. The brass 3/16" male inverted flare fittings with a 3/8"-24 thread fit most trailer brake components, such as calipers, wheel cylinders, master cylinders, and solenoid valves. The swivel end fittings help prevent twisting during installation, ensuring a secure and efficient setup.
Product Specifications:
- Length: 4 feet
- Fitting Type: Male inverted flare at both ends
- Thread Size: 3/8"-24
- Material: Flexible rubber, UV resistant
- Certification: DOT approved
- Compatibility: Suitable for boat trailers, utility trailers, and hydraulic brake systems
Description |
Material |
Overall Length |
Hose I.D. |
Fitting Thread |
Application |
Brake Line |
Rubber |
4 ft |
1/8'' |
3/8"-24 |
calibrated pressure valves, called brake lines, that let the car know when you want to slow down. The hoses are thin tubes filled with pressurized air that connect the master cylinder in the cabin to the brake calipers via the wheel cylinders and brake pads. |


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