CheeMuii 136-Piece DOT Brass Air Line Fittings Kit — Push-Lock & NPT Assortment with Tube Cutter

CheeMuii 136 pcs DOT brass air line fittings kit is a complete push-lock and NPT assortment for automotive air brake, suspension, and pneumatic repairs.

This comprehensive kit brings together a wide variety of DOT-compliant brass fittings, adapters, valves, and installation accessories so you can assemble, repair, or modify air lines without sourcing multiple parts. All components are made from CA360 brass, supplied with pre-applied NPT sealant where applicable, and sized to match common tubing diameters used in air brake and suspension systems.

What exactly is included in the 136-piece CheeMuii kit?

The set is organized to cover common install and repair scenarios, from straight unions to swivels and inflation valves. It also includes small hand tools and thread sealing tape so jobs can be started immediately.

• 12 DOT brass tee fittings and 34 straight unions
• 36 straight push & NPT fittings and 18 90° push & NPT elbows
• 12 360° swivel elbows, 12 brass bushings, and 6 couplings
• 4 brass 1/4" Schrader inflation valves, 1 tube cutter, and 1 roll of Teflon tape

How durable and compliant are CheeMuii DOT fittings?

The fittings are manufactured from CA360 pure brass and designed to meet DOT FMVSS 571.106 and SAE J1131 standards for air brake components. Brass construction provides corrosion resistance, high temperature ductility, and low permeability for long service life in vehicle and workshop environments.

• CA360 brass for corrosion resistance and durability
• Engineered to DOT and SAE guidance for air brake use
• Stable across a wide temperature range for vehicle applications

What pressure and temperature ranges do these push-lock fittings support?

Push-lock DOT fittings in this kit are rated for use from vacuum up to 800 PSI and operate from -40°F to +248°F (-40°C to +120°C). Always verify the tubing manufacturer's ratings for combined pressure and temperature limits to ensure safe operation in your specific application.

• Vacuum to 800 PSI working pressure capability
• Temperature tolerance from -40°F to +248°F
• Push-to-connect design for rapid assembly and secure hold

How easy is installation and which accessories help with sealing?

CheeMuii fittings use a quick connect push-lock interface and machined NPT threads for fast, leak-resistant assembly. The kit includes a tube cutter for clean tubing ends and pre-applied sealant on NPT male threads plus Teflon tape to add extra assurance during installation.

• Push-fit joints require no special tools for most connections
• Pre-applied NPT sealant reduces assembly time and leaks
• Tube cutter and Teflon tape included for proper preparation and sealing

Who is this kit best suited for? The CheeMuii 136-piece DOT brass fittings kit is ideal for mechanics, fleet maintenance technicians, DIY enthusiasts, and anyone who services air brake systems, air suspensions, or pneumatic accessories. It serves as a convenient starter inventory for mobile repairs, shop routines, or custom air-system builds where DOT-compliant brass fittings, adapters, and inflation points are required.