GallopMax AC Oil Dye Injector Kit — 7.5–60 ml Aluminium Injector for R134A & R1234YF with Snap‑On Couplers

GallopMax's AC oil dye injector kit is a compact, multi‑function tool that injects oil, dye, or additives into R134A, R1234YF and R410A air‑conditioning systems with precision.

Engineered for technicians and DIYers who service vehicle or light‑equipment air conditioning, this kit combines snap‑on couplers, a clear graduated injector, and oil checkers to speed up re‑oiling, additive dosing and fluorescent leak dye application. The aluminium injector body and engraved scale let you measure amounts from 7.5 ml to 60 ml, while dedicated low‑side fittings avoid cross‑compatibility mistakes.

How do I use the injector to add oil safely?

Start the vehicle’s A/C on maximum cooling and attach the correct low‑side quick coupler for the refrigerant in the system. Fill the aluminium injector to the required amount, connect the check valve, open the safety port, then rotate the handle to force the oil into the system until empty.

• Choose the R134A or R1234YF snap‑on coupling supplied.
• Read the laser‑engraved scale: 7.5 ml to 60 ml capacity.
• Use the oil checkers to verify existing system oil level before injection.
• Turn the plunger clockwise to inject; close and remove when finished.

Which fluids can this GallopMax kit handle?

The injector is designed for multiple fluids used in A/C service: compressor oil, fluorescent scanner dye and compatible liquid additives. It’s not intended for pressurized refrigerant charging — only for liquid oil or solvent‑based additives.

• Compressor oil for top‑up and re‑oiling after component replacement.
• Fluorescent dye for leak detection with UV scanners.
• Liquid performance additives formulated for A/C systems.
• Avoid using thick greases or solids that could clog the nozzle.

Will this kit work on R410A systems as advertised?

The kit supports oil injection tasks for R134A and R1234YF with dedicated couplers included; R410A systems often use different service ports and pressures, so confirm port compatibility before use. The aluminium injector and accessories will still measure and deliver oil, but ensure you have the correct service fitting for R410A vehicles.

• Includes R134A and R1234YF low‑side quick couplers for direct connection.
• Check R410A service port type on your unit before attaching couplers.
• Use the injector for liquid oil/dye — not for refrigerant charging under pressure.
• Follow manufacturer service procedures for high‑pressure systems like R410A.

What accessories are included and how do they help?

The kit ships with everything needed to measure and inject precise oil volumes and to couple to common low‑side ports. Two oil checkers and a measuring cup help confirm existing oil levels and control dosing to avoid over‑ or under‑oiling compressors.

• 1 × 2 oz (60 ml) aluminium oil/dye injector with a laser‑engraved scale.
• 1 × R1234YF low‑side quick coupler and 1 × R134A low‑side coupler with valve.
• 2 × oil checkers to assess current system oil before injection.
• 1 × 2 oz measuring cup for accurate prefill measurements.

Who this tool is for: the GallopMax injector kit suits professional auto HVAC technicians, mobile service providers and experienced DIYers who perform maintenance or repairs on automotive and light‑duty A/C systems. If you need a portable, accurate way to add oil, dye or additives—without carrying multiple injectors for different refrigerants—this kit streamlines the task. Always follow vehicle manufacturer instructions and safety procedures when servicing A/C systems, and confirm coupler compatibility for high‑pressure refrigerants like R410A before use.