Lichamp AC Oil Injector Kit for R134a & R1234yf – Aluminum Hand‑Turn Injector, Adjustable Coupler, Oil Checkers

The Lichamp AC Oil Injector Kit is a compact, aluminum alloy injector that lets technicians and DIYers add oil or UV dye into R134a and R1234yf automotive A/C systems safely through the low‑side service port.

This injector kit is built for portability and accuracy: it accepts small to medium volumes (7.5 ml to 60 ml), uses heavy‑duty brass couplers and hoses, and includes extra low‑side oil checkers and coupler adapters so you can work on a range of modern vehicles and some HVAC lines. The hand‑turn design gives you tactile control over how much fluid goes into the compressor suction side, while the knurled non‑slip ring improves grip during precise dosing.

How do I use the Lichamp injector on my vehicle?

Attach the correct coupler to the injector hose, connect to the vehicle’s low‑pressure service port, and twist the handle to dispense the desired amount of oil or dye. Work with the engine off and follow the carmaker’s service guidance for oil type and volume.

• Select the adapter for R134a or R1234yf blue port compatibility.
• Ensure the system is on the low‑pressure side and depressurized before connecting.
• Rotate the knurled handle slowly to meter fluid; check oil checkers for flow confirmation.

Which refrigerants and systems is this compatible with?

The kit is designed for modern automotive A/C systems using R134a and R1234yf refrigerants and can also adapt to some R410A HVAC fittings. Extra couplers and a 1/4 inch female hose fitting extend its usefulness for various service ports.

• Directly compatible with R134a and R1234yf automotive low‑side ports.
• Includes adapters that work with common blue service ports and 1/4-inch fittings.
• Not a substitute for full refrigerant charging equipment—intended for oil/dye injection only.

How accurate and durable is the injector?

The body is machined from lightweight aluminum alloy for corrosion resistance and portability; brass couplers and reinforced hoses provide secure, leak‑resistant connections. The hand‑turn metering and knurled handle help you control small doses reliably.

• Capacity range: 1/4 oz (7.5 ml) to 2 oz (60 ml) for precise dosing.
• Thickened hose and brass couplers for steady, durable service connections.
• Knurled handle ring for non‑slip, accurate rotation and superior sealing.

What comes in the box and what extra checks should I do?

The kit ships with the injector body, hoses, multiple coupler adapters, and two extra low‑side oil checkers so you can verify flow and avoid overfilling. Before use, confirm the oil type and manufacturer recommendations for your vehicle.

• Injector with adjustable coupler and knurled hand ring.
• Multiple couplers/adapters for R134a, R1234yf and 1/4" fittings.
• Two spare low‑side oil checkers for immediate flow confirmation.

Who this is for: The Lichamp AC Oil Injector Kit suits automotive technicians, independent repair shops, and hands‑on vehicle owners who perform A/C service and need a portable, accurate tool for injecting oil or UV dye into the compressor suction side. It’s ideal when you need controlled small‑volume dosing, cross‑compatibility with common service ports, and a compact, corrosion‑resistant tool that’s easy to handle in tight engine bays. Not intended as a refrigerant charging device—use it for oil and dye metering only and follow refrigerant handling regulations and safety procedures.