Ailbiuko 250-piece Brass DOT Air Brake & Compression Fittings Kit — CA360 Brass, DOT Compliant

Ailbiuko's 250-piece brass DOT air brake and compression fittings kit is a complete, corrosion-resistant assortment designed to service air brake lines, compressed-air systems, and general plumbing connections.

This all-in-one kit combines DOT push-to-connect fittings, compression nylon tube fittings, and traditional brass pipe connectors so you can repair, modify, or build pneumatic lines without running back to the shop for missing parts. Every component is machined from CA360 brass and supplied with common accessories—a tube cutter and a roll of Teflon tape—so you can make reliable, leak-resistant joints in trucks, trailers, RVs, and workshop pneumatic setups.

What exactly is included in this 250-piece fitting assortment?

The set groups three types of components to cover most air system and pipe connection tasks. Quantities are specified so you know what to expect and can plan work without guessing which fittings you'll need.

• 38 DOT push-to-connect parts: straight male, 90° and 45° male elbows, unions, tees, and two schrader valves.
• 157 DOT compression nylon-tube fittings: a mix of male connectors, elbows, unions, tees and 140 sleeve ferrules for secure tubing grips.
• 53 brass pipe fittings: hex couplings, nipples, bushings, adapters, street elbows, hex plugs and socket plugs.
• Extras: 4 m roll of PTFE (Teflon) tape and a compact tube cutter for on-site line prep.

How does the material and certification affect performance?

Components are constructed from CA360 brass, chosen for durability and resistance to corrosion commonly encountered in automotive and industrial environments. The fittings meet DOT FMVSS 571.106 air brake requirements for compatibility with vehicle pneumatic systems.

• CA360 brass resists rust and maintains mechanical strength under repeated use.
• Low permeability helps preserve line integrity for compressed air applications.
• Conforms to DOT air brake specifications for safe vehicle installations.

What pressure and temperature conditions can this kit handle?

The fittings are suitable for typical air brake and compressed-air service ranges; working pressure can handle up to about 300 PSI from vacuum to maximum rated pressure. Temperature tolerance spans very cold to high-heat environments, though final limits depend on the tubing you use.

• Working pressure: up to ~300 PSI (follow tubing manufacturer limits).
• Temperature range: approximately -40°F to +250°F for the brass fittings.
• Recommendations: verify compatible tubing and installation methods for extreme conditions.

How simple is installation and what tools are needed?

Many DOT push-to-connect and compression fittings install quickly with hand insertion of tubing; threaded brass pieces screw together, some pre-treated with sealant. The kit includes Teflon tape and a tube cutter to prepare clean tubing ends; a wrench is recommended to fully tighten threaded parts for vibration resistance.

• Push-to-connect parts require straight, clean tube ends and a firm push to seat properly.
• Compression fittings use sleeve ferrules to grip nylon tubing; tighten to manufacturer torque spec.
• Threaded brass pieces may need a wrench; Teflon tape is provided for additional sealing.

Who is this kit best suited for? This 250-piece Ailbiuko set is ideal for mechanics, fleet maintenance crews, DIYers working on trailers, trucks, RVs, or garage pneumatic projects who want a broad selection of DOT-compliant brass fittings in a single, ready-to-use package. If you service air brake lines or build compressed-air plumbing and prefer brass components with clear quantities and common accessories, this kit reduces trips to the parts counter and supplies the basic tools to make secure connections.