32pcs AC Hose and Fitting Kit,#6#8#10 Air Conditioning A/C Repair

The Langina 32-Piece AC Hose and Fitting Kit provides the components needed to fabricate custom automotive air conditioning lines at home. Tailored for classic car restorations, LS engine swaps, and truck repairs, this set helps DIY mechanics bypass expensive shop fees and long wait times. It packages 28 aluminum connectors, four R134a service port fittings, and three full hose lengths into a single organized system.

Routing lines through cramped engine bays is straightforward thanks to the varied connector shapes. The kit provides eight pieces each of 45-degree, 90-degree, and 180-degree elbow fittings, letting you easily maneuver around radiator supports and exhaust headers. In addition, four specialty fittings include built-in R134a high- and low-pressure service ports, making it simple to convert vintage R12 systems over to modern refrigerant. All aluminum fittings feature size labeling and a smooth inner bore to keep refrigerant flow unrestricted.

For plumbing the system, you get three 6.5-foot hoses in 5/16-inch, 13/32-inch, and 1/2-inch inner diameters (covering #6, #8, and #10 lines). Built for durability, these hoses manage working pressures up to 650 PSI and operate reliably in temperatures ranging from -4F to 212F. To secure them, each fitting uses a barbed insert paired with an outer crimp sleeve. This setup compresses evenly with standard hydraulic crimpers, creating a tight dual seal that withstands repeated pressure cycling and thermal expansion.

When planning your installation, keep in mind that you must supply your own hydraulic crimping equipment, as one is not included in the box. Each of the three hose diameters is limited to a single 6.5-foot continuous segment, so long custom runs requiring more continuous length will need extra line. The whole collection ships in a black portable toolbox featuring three organized sections that protect parts from moisture, workshop dirt, and impact.

Verdict: The Langina AC hose and fitting kit is an excellent choice for automotive enthusiasts and builders tackling custom AC line fabrication or R134a conversions. It delivers a comprehensive selection of angled fittings and high-pressure hoses to handle complex engine bay layouts with confidence.

• Total Piece Count: 32 pieces
• Fitting Count: 28 aluminum fittings (8x 45-degree, 8x 90-degree, 8x 180-degree) plus 4 R134a service port fittings
• Fitting Material: Aluminum
• Fitting Sizes: #6, #8, #10
• Hose Lengths: 3 hoses at 6.5 feet each
• Hose Inner Diameters: 5/16 inch, 13/32 inch, 1/2 inch
• Working Pressure: 650 PSI
• Operating Temperature Range: -4F to 212F
• Included Storage: Black compartmentalized portable toolbox

A great fit if you:

• Are building custom AC lines for an LS swap, hot rod, or classic car restoration.
• Need to retrofit a vintage vehicle system to accept R134a refrigerant service ports.
• Already own or have access to a standard hydraulic hose crimper.
• Want an organized assortment of angled fittings to route around tight engine bay obstacles.

Consider something else if you:

• Do not own and do not plan to acquire a hydraulic hose crimping tool.
• Need continuous single hose runs that exceed 6.5 feet in length.

What hose sizes and lengths come in the kit?
The kit includes three separate 6.5-foot hoses with inner diameters of 5/16 inch (#6), 13/32 inch (#8), and 1/2 inch (#10).

What fitting angles are included?
You get 28 standard aluminum fittings (eight 45-degree, eight 90-degree, and eight 180-degree elbows) along with four specialized fittings featuring integrated R134a high/low pressure service ports.

What are the pressure and temperature ratings for the hoses?
The included hoses have a working pressure rating of 650 PSI and can withstand temperatures ranging from -4F to 212F.

Does this kit include a crimping tool?
No, the kit includes a step-by-step visual guide for the six-stage crimping process, but the fittings are designed to be crimped using standard hydraulic crimping tools that you provide separately.