HASAOMOI 4PCS Brass DOT 3/8” Hose x 1/2" Male Air Brake

HASAOMOI 4PCS Brass DOT 3/8” Hose x 1/2" Male Air Brake Hose End Fittings are DOT-compliant brass hose ends designed to deliver secure, leak-resistant connections for truck and trailer air brake lines.

These four brass hose ends are manufactured from CA360 brass to meet DOT and SAE specifications for air brake systems, giving you durable mating points for 3/8” hose and 1/2" male threads. Built for heavy-duty vehicle applications, they prioritize sealing integrity and corrosion resistance so that air systems maintain pressure and performance under routine use or demanding conditions.

How do these fittings ensure a reliable seal in air brake systems?

Precision-machined surfaces and the inherent properties of CA360 brass combine to form tight connections that resist common leak paths. The fittings are engineered to meet D.O.T. FMVSS 571.106 and SAE J1402 requirements, which focus on safety and performance in commercial braking applications.

• CA360 brass body for consistent dimensional accuracy
• Machined contact faces minimize air seepage
• Designed for DOT-spec hose and thread sizes to prevent mismatch
• Rated to function at typical system pressures up to 300 PSI

What environments and vehicles are these hose ends suitable for?

These fittings are intended for a range of heavy-duty air brake systems including trucks, trailers, and other commercial vehicles. Their corrosion-resistant brass construction helps them withstand road salt, moisture, and grime common in commercial fleet operations.

• Commercial trucks and tractor-trailers
• Box vans, utility trailers, and cargo haulers
• Industrial air lines and compressor hookup points
• Applications where DOT/Sae compliance is required

How easy is installation and what should I check before fitting?

Installation is straightforward for anyone familiar with air brake hose assemblies: slide the hose over the barb, tighten to the specified thread engagement, and verify the connection before pressurizing. Always inspect hose ends and mating threads for damage and ensure correct hose ID to avoid improper sealing or loosening in service.

• Confirm hose I.D. is 3/8” and thread is 1/2" male
• Check threads and barbs for burrs or distortion
• Use correct torque and clamp style per hose manufacturer
• Pressure-test the assembly at operating pressure before road use

What performance and maintenance can I expect over time?

Brass fittings offer long service life when paired with compatible hoses and appropriate installation practices. Regular inspections for corrosion, wear, and tightness will keep systems functioning reliably; replace fittings showing significant wear or damage to maintain DOT compliance and safety.

• Excellent corrosion resistance for extended service life
• Stable sealing performance under normal operating pressures
• Simple visual inspections reveal most wear or leaks
• Replace if threads, barbs, or seating surfaces show deterioration

Who is this product for? Fleet managers, commercial vehicle technicians, and anyone maintaining air brake systems on trucks or trailers will find these HASAOMOI brass hose ends useful. If you require DOT- and SAE-conforming hose terminations that resist corrosion and keep air systems sealed at pressures up to roughly 300 PSI, this four-piece set provides a durable, ready-to-install option. These fittings are also suitable for industrial air lines and compressor hookups where DOT-spec components are preferred.

Features at a glance:

• Durable CA360 brass construction for heavy-duty use
• DOT FMVSS 571.106 and SAE J1402 compliance
• Precision sealing to reduce air leakage and inefficiency
• Resistant to wear and corrosion in challenging environments
• Intended for trucks, trailers, compressors and industrial air hoses