HASAOMOI 4PCS Brass DOT 3/8”Hose x 3/8" Male Air Brake Hose

HASAOMOI 4PCS brass DOT 3/8” hose x 3/8" male air brake hose end fittings are DOT-compliant, heavy-duty brass connectors designed to deliver leak-resistant connections for truck and trailer air brake lines.

These four brass hose end fittings are made from CA360 brass and manufactured to meet DOT FMVSS 571.106 and SAE J1402 standards for air brake systems. Built for commercial vehicle use, the fittings resist corrosion, maintain sealing under pressure up to 300 PSI, and provide a reliable mechanical interface between hoses and brake system components.

How do these fittings prevent leaks on heavy vehicles?

Precision machining and the inherent properties of CA360 brass deliver a tight, consistent seal that minimizes air loss at connection points. The design and tolerances are optimized for DOT air brake hose sleeves to reduce leakage across a wide range of working pressures.

• Precision-cut mating surfaces for reliable compression sealing
• DOT-approved CA360 brass resists dimensional changes under stress
• Rated to perform at system pressures up to 300 PSI

Will these fittings survive exposure to road salt and weather?

Brass offers excellent resistance to rust and many corrosive elements commonly found on roads, including de-icing salts. The fittings are made to keep structural integrity and function in fluctuating temperatures and wet environments.

• CA360 brass resists corrosion better than many plated steels
• Durable finish reduces degradation from moisture and salts
• Suitable for long-term use on trucks, trailers, and commercial equipment

Are these fittings compatible with my existing air brake hoses and tools?

These are 3/8" hose by 3/8" male fittings sized to work with standard DOT air brake hose sleeves and many common quick-connect air line components. They pair well with industry-standard hoses, compressors, and couplers used in heavy-duty vehicle maintenance.

• Standard 3/8" hose barb and male thread dimensions
• Works with DOT-compliant air brake hose and typical quick-connect couplers
• Ideal for replacement or retrofit on trucks, trailers, and industrial air lines

How easy is installation and maintenance?

Installation is straightforward with basic shop tools: slide the hose onto the barb, secure the sleeve per DOT practice, and torque the mating connection to spec. Routine inspection and cleaning keep sealing surfaces free of debris and extend service life.

• Simple push-and-secure hose attachment for fast field service
• Low-maintenance material reduces the need for frequent replacement
• Inspect seals and threads periodically to ensure continued leak-free performance

Who is this for: These HASAOMOI brass DOT air brake hose end fittings are intended for fleet managers, mechanics, and DIY truck owners needing DOT-approved replacement parts for heavy-duty air brake systems. Choose this 4-piece set when you require durable, corrosion-resistant connectors that meet SAE and DOT specifications for safe, dependable performance on commercial vehicles and industrial equipment.