Taiidaues 1/4" Air Line Service Kit — 30 ft DOT-compliant PA12 Hose with Brass Fittings

Taiidaues 1/4" Air Line Service Kit is a complete replacement set for air bag suspension systems, including 30 feet of DOT-compliant PA12 hose, brass DOT fittings, inflation valves, a tee, and install tools.

This service kit supplies the core components you need to repair or upgrade 1/4" air lines on trucks, trailers, RVs, and air-spring suspension systems. Built to meet DOT and SAE specifications, the kit combines a rugged polyamide (PA12) hose with CA360 brass fittings, a union tee, swivel elbows, inflation Schrader valves, thread seal tape, and a tubing cutter to make field or shop installs faster and more reliable.

What parts come in the kit and why do they matter?

The Taiidaues kit bundles 30 ft of 1/4" PA air hose with a selection of DOT-grade brass fittings and inflation hardware so you have everything needed to restore an air line circuit. Each fitting is chosen for durability, corrosion resistance, and ease of connection.

• 30 ft black 1/4" PA12 DOT-compliant air hose for flexible routing and abrasion resistance
• 2 brass inflation Schrader valves with protective caps for manual air fill points
• 2 x 1/4" OD × 1/4 NPT 360° swivel elbow fittings for tight-routing corners
• 1 x 1/4" union tee to split or join lines, plus a push-fit 1/4" union connection
• Plastic tubing cutter and roll of thread-seal tape for clean, leak-free joins

How does this kit meet DOT and SAE standards?

Components in the kit are selected to satisfy common regulatory and performance expectations for air brake and suspension lines. The hose is manufactured from PA12 polyamide and the brass fittings are CA360, both chosen to reduce risks from heat, vibration, and environmental exposure.

• PA12 hose meets DOT and SAE J844-type requirements for flexibility and wear resistance
• CA360 brass fittings comply with D.O.T. FMVSS 571.106 and SAE J1131 criteria for air systems
• Brass hardware resists corrosion and maintains ductility at elevated temperatures
• Push-fit connections allow quick, positive seals without specialized tools

How simple is installation and maintenance?

The kit is designed for straightforward installation by mechanics or competent DIYers. Push-to-connect fittings secure the tubing instantly, while the included cutter and thread-seal tape make threaded joints clean and leak-resistant.

• Push-fit fittings seat firmly by inserting tubing until it clicks; press release button to remove
• Use the included cutter for straight, burr-free hose ends to improve seals
• Wrap the male threads with supplied tape before tightening to prevent leaks
• Protective valve caps keep dirt and moisture out of inflation ports during service

What vehicles and projects is this best suited for?

This kit is versatile for any 1/4" air line application where DOT-compliant hose and fittings are required. It works well for repair, maintenance, and retrofits on semi trucks, trailers, RVs, light trucks with air helper springs, workshop air lines and various utility equipment.

• Replacement or extension of truck and trailer air suspension circuits
• RV air bag systems and auxiliary air helper springs
• Workshop or industrial compressed-air routing where DOT specs are needed
• Lawn equipment or towing devices requiring resilient 1/4" air hose

Who is this for: The Taiidaues 1/4" Air Line Service Kit is aimed at fleet technicians, independent mechanics, and experienced DIYers who need a DOT-compatible repair solution for air suspension and brake-line-related connections. If you want a single package that supplies compliant hose, durable brass fittings, inflation valves, and basic install tools, this kit covers those bases without needing multiple parts orders.