{"product_id":"boltigen-ac-oil-dye-injector-kit-2-oz-backflow-protected-with-r134a-r1234yf-quick-couplers","title":"Boltigen AC Oil \u0026 Dye Injector Kit, 2 oz — Backflow-Protected with R134a\/R1234YF Quick Couplers","description":"\u003cp\u003e\u003cstrong\u003eBoltigen AC Oil Dye Injector Kit is a compact, 2 oz refrigerant oil and dye injection system with backflow protection and multiple quick coupler adapters for R134a, R1234YF and R410 installations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit gives technicians and DIYers a precise way to introduce oil or fluorescent dye into the low‑pressure side of automotive and small HVAC systems. It combines a sealed injection cylinder with quick couplers for common refrigerants and a mini‑split adapter so you can add tracer dye or top up POE\/mineral oil without contaminating the system or wasting product. The built‑in backflow prevention and threaded cores help protect your injector and the service lines during transfer.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use the injector safely on my car or home AC?\u003c\/h3\u003e\n\n\u003cp\u003eSet up by filling the injector cylinder with the required volume (up to 2 oz \/ 60 ml), attach the check valve, purge a small amount of air, then connect to the system’s low‑pressure service port. Operate with the engine\/climate system off or as recommended for the specific service procedure and follow dye manufacturer instructions. The included quick couplers make secure, leak‑resistant connections to R134a or R1234YF low‑side ports.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFill inner cylinder with oil or dye up to 2 oz (60 ml).\u003c\/li\u003e\n  \u003cli\u003eAttach check valve and tighten the inner and outer cylinders clockwise.\u003c\/li\u003e\n  \u003cli\u003ePurge a bit of air through the 1\/4\" SAE core before connection.\u003c\/li\u003e\n  \u003cli\u003eConnect matching quick coupler (R134a or R1234YF) to the low side port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich refrigerant systems and oils are compatible with this kit?\u003c\/h3\u003e\n\n\u003cp\u003eThe injector supports automotive and small HVAC systems using R134a, R1234YF and R410A (via adapter) refrigerants, and accepts POE and mineral oils as well as fluorescent tracer dyes formulated for leak detection. It’s intended for low‑side suction port service only and is compatible with handheld leak inspection workflows. Avoid cross‑contamination by flushing or dedicating dyes to specific systems.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eR134a quick coupler: 1\/4\" SAE male x 13mm female.\u003c\/li\u003e\n  \u003cli\u003eR1234YF quick coupler: 14mm female adapter included.\u003c\/li\u003e\n  \u003cli\u003eR410A mini‑split adapter: 5\/16\" SAE female to 1\/4\" SAE male.\u003c\/li\u003e\n  \u003cli\u003eWorks with POE, mineral oils and compatible fluorescent dyes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat safety or performance features protect the system and injector?\u003c\/h3\u003e\n\n\u003cp\u003eThe design includes a backflow check valve on the 1\/4\" SAE port to prevent refrigerant or oil from flowing back into the injector, reducing contamination risk. Threaded inner and outer cylinders create a secure seal to control dispensing, while the small purge step clears trapped air for accurate dosing. Quick couplers lock in place to minimize leaks during attachment and service.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eIntegrated check valve prevents backflow into the injector.\u003c\/li\u003e\n  \u003cli\u003eThreaded cylinders allow controlled, measurable dispensing.\u003c\/li\u003e\n  \u003cli\u003ePurge procedure reduces air pockets for accurate injection.\u003c\/li\u003e\n  \u003cli\u003ePositive‑lock quick couplers limit loss during connection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the box and what extra items might I need?\u003c\/h3\u003e\n\n\u003cp\u003eThe Boltigen kit ships with the 2 oz (60 ml) oil and dye injector, R1234YF low‑side coupler, R134a low‑side coupler with valve, R410 mini‑split adapter, and a valve core remover. For complete service you'll also want safety goggles, gloves, approved fluorescent dye, and refrigerant recovery\/handling equipment if you’re performing broader repairs. Use manufacturer‑specified dyes and oils to avoid performance or warranty issues.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e1 × 2 oz oil\/dye injector with backflow protection.\u003c\/li\u003e\n  \u003cli\u003e1 × R1234YF low‑side quick coupler.\u003c\/li\u003e\n  \u003cli\u003e1 × R134a low‑side quick coupler (with valve).\u003c\/li\u003e\n  \u003cli\u003e1 × R410 mini‑split adapter and 1 × valve core remover.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Boltigen AC Oil Dye Injector Kit is aimed at automotive technicians, HVAC service pros, and experienced DIYers who need a compact, adaptable tool for introducing oil or fluorescent dye into low‑pressure refrigerant systems. It’s best suited to routine leak tracing, small top‑ups, and diagnostic work on cars, light trucks, window units, and mini‑split systems when used alongside proper safety and refrigerant handling practices.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this injector with R1234YF systems?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit includes a dedicated R1234YF low‑side quick coupler compatible with R1234YF service ports.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the injector safe for mineral and POE oils?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It accepts both POE and mineral oils and compatible fluorescent dyes when used per instructions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Boltigen","offers":[{"title":"Default Title","offer_id":48083225313438,"sku":"B09VL8W76S","price":63.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/boltigen-injector-front-view.jpg?v=1785828996","url":"https:\/\/northtrailauto.ca\/products\/boltigen-ac-oil-dye-injector-kit-2-oz-backflow-protected-with-r134a-r1234yf-quick-couplers","provider":"North Trail Auto","version":"1.0","type":"link"}