Boltigen AC Oil and Dye Injector Kit for R1234YF R134A R410A — 1/4" SAE Brass Connector, 7.5–60 ml Precise Dispensing

Boltigen AC Oil Injector Kit is a handheld dye and oil dosing tool designed to deliver precise amounts of POE or mineral oil and fluorescent dye into R1234YF, R134A and R410A refrigerant systems.

This compact kit includes an aluminum-alloy injector body, a brass 1/4" SAE connector, a durable rubber hose and multiple low-side couplers so you can add oil or leak-detecting dye into a wide range of car and HVAC systems. Built for technicians and DIYers alike, the tool uses a rotary push design with a knurled handle for controlled dispensing in quantities from 1/4 oz (7.5 ml) up to 2 oz (60 ml). The pack also contains adapters for R134a, R1234yf and mini-split R410 connections, making it a flexible addition to service work or troubleshooting.

How do I connect the Boltigen injector to my vehicle or home AC?

Attachment is straightforward: choose the correct low-side coupler included in the kit, snap it onto the system’s service port, and screw the 1/4" SAE connector to the injector. The quick-connect couplers prevent refrigerant loss while the brass fittings ensure a tight, reliable seal.

• Select R134a or R1234yf low-side coupler depending on refrigerant.
• Use the R410 mini-split adapter for applicable systems.
• Securely tighten the 1/4" SAE brass connector to the injector body.
• Confirm no leaks before dispensing dye or oil.

What volume and fluids can this injector handle?

The Boltigen injector accommodates small, controlled doses—ideal for dye tracing and topping up lubricant. The main body holds from 1/4 oz (7.5 ml) up to 2 oz (60 ml), and it accepts fluorescent dyes plus POE and mineral oil types commonly used in automotive and residential HVAC systems.

• Capacity range: 7.5 ml to 60 ml for staged dosing.
• Compatible with fluorescent leak-detection dyes.
• Accepts POE oils and mineral oils used in refrigeration circuits.
• Rotary push mechanism for precise volume control.

Is the injector durable and easy to operate?

The main hand-turn body is made from anodized aluminum alloy for light weight and corrosion resistance, while the brass 1/4" SAE connector and thick rubber hose improve long-term reliability. The knurled handle offers positive grip and the rotary push design lets even less-experienced users meter fluid without specialized training.

• Anodized aluminum body resists wear and corrosion.
• Brass fittings provide secure, leak-resistant connections.
• Durable rubber hose accommodates repeated service use.
• Knurled handle enables controlled dispensing by hand.

Can I use this injector while diagnosing leaks or servicing systems?

Yes—this kit is suited to both diagnostic dye injection and lubricant addition during service. Use fluorescent dye to pinpoint leaks under UV inspection, then add the appropriate oil to restore lubrication levels, all with the same tool to save time and reduce connection changes.

• Add dye for UV leak detection during troubleshooting.
• Top up compressor oil after repairs or leak fixes.
• Single tool supports multiple refrigerants with included adapters.
• Quick couplers limit refrigerant loss during service steps.

Who this is for: The Boltigen AC Oil Injector Kit is aimed at professional HVAC technicians, automotive air-conditioning specialists and informed DIYers who need a reliable, compact tool to inject dye and oil into R1234YF, R134A and R410A systems. If you perform routine AC diagnostics, top-up oil, or use fluorescent dyes for leak detection, this kit offers a portable, corrosion-resistant solution with adapters to cover most low-side ports.