56 Pcs Brass DOT Air Line Fittings Kit - Complete Repair Set

In this review the 56 Pcs Brass DOT Air Line Fittings kit is evaluated as a practical, no-nonsense kit for air line repairs and installations. The bottom line: it is best for technicians, DIYers and fleet owners who need a broad assortment of DOT-compliant brass fittings and accessories in one kit, because the parts are CA360 brass rated for DOT and SAE requirements and cover common sizes from 1/8' to 1/2'. The kit's inclusion of a tube cutter and Teflon tape makes it ready for immediate use on air brake, suspension or pneumatic hose work.

Key Features

• DOT and SAE compliant: Fittings made from CA360 brass meet DOT FMVSS 571.106 and SAE J1131 guidance, which provides peace of mind for air brake system use.
• Wide size coverage: The set contains fittings in 1/8', 1/4', 3/8' and 1/2' sizes so it handles most truck, trailer, RV and auto air line repairs.
• Complete assortment: With tees, unions, straight push/NPT pieces, 90, 45 and 360 swivel elbows plus bushings and Schrader valves, the kit reduces trips to the parts store.
• High pressure and temperature range: Rated for vacuum to 800 PSI and -40F to +248F, the fittings suit heavy duty pneumatic and air suspension tasks within tubing limits.
• Ready-to-use accessories: The included tube cutter and Teflon tape make on-vehicle repairs and installations faster and cleaner.

Who It's For

This kit is aimed at professional mechanics, fleet maintenance staff and serious DIYers working on semi truck, trailer, tractor, RV or automotive air lines who need DOT-grade brass fittings and the flexibility to repair multiple fittings sizes. The assortment handles common field repairs and shop installations where durability and corrosion resistance matter.

It is less appropriate for users who only need a single fitting type or those working outside the stated pressure and temperature ranges; in those cases purchasing specific fittings or verifying tubing manufacturer limits is recommended.

Pros & Cons

Pros

• Durable CA360 brass construction provides corrosion resistance and long service life.
• Comprehensive kit contents cover tees, unions, multiple elbows, bushings and valves for versatile repairs.
• Good value for money according to users, with useful extras like a tube cutter and Teflon tape included.

Cons

• Not ideal for someone who only needs a single connector or non-brass materials; kit may supply more parts than required.

Specifications

Brand	XaXmTee
Material	CA360 brass
Kit quantity	56 pieces
Fitting types included	Tees, unions, straight push & NPT, 90, 45, 360 swivel, bushings, Schrader valves
Sizes	1/8', 1/4', 3/8', 1/2'
Working pressure	Vacuum to 800 PSI
Temperature range	-40F to +248F

Our Verdict

The 56 Pcs Brass DOT Air Line Fittings kit is a practical, economical choice for technicians and serious DIYers who service air brake, suspension or pneumatic lines and want DOT-grade brass parts on hand. Its broad assortment, CA360 brass construction and included tools make it good value for multi-size repairs, though single-use buyers may find more targeted options cheaper.

Frequently Asked Questions

Are these fittings DOT approved?
Yes, the fittings are made from CA360 brass and meet DOT FMVSS 571.106 guidance and SAE J1131 requirements for air brake system use.

What sizes are included?
The kit includes fittings in 1/8', 1/4', 3/8' and 1/2' for common air line applications.

Can these be used at high pressure?
The fittings are rated for vacuum to 800 PSI and -40F to +248F, but users should also follow the tubing manufacturer's pressure and temperature recommendations.