{"product_id":"boltigen-ac-oil-injector-kit-for-r1234yf-r134a-r410a-aluminum-dye-injector-with-shut-off-backflow-prevention","title":"Boltigen AC Oil Injector Kit for R1234yf R134a R410a — Aluminium Dye Injector with Shut-Off \u0026 Backflow Prevention","description":"\u003cp\u003e\u003cstrong\u003eBoltigen AC Oil Injector Kit is a compact, multi-adapter tool that lets technicians and DIYers add oil or fluorescent dye to R1234yf, R134a and R410a air conditioning systems safely and cleanly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis all-in-one injector set includes the main aluminum alloy injector body, low-side couplers for R1234yf and R134a, an R410a adapter, valve-core remover, gloves and protective bag. Designed for service work on automotive and small HVAC systems, the kit supports POE and mineral oils plus fluorescent dyes for leak detection while providing backflow prevention and a shut-off valve for controlled dispensing.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the injector prevent backflow and overfill?\u003c\/h3\u003e\n\u003cp\u003eThe Boltigen injector uses an integrated check valve and a manual shut-off to stop refrigerant or oil from returning into the container once connected. That reduces contamination and accidental overfills during charging or dye injection. The shut-off also lets you meter small, precise doses without pressure spikes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilt-in check valve for one-way flow\u003c\/li\u003e\n  \u003cli\u003eManual shut-off for controlled dispensing\u003c\/li\u003e\n  \u003cli\u003e1\/4\" SAE brass connector ensures secure, leak-resistant seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich refrigerants and oils are compatible with this kit?\u003c\/h3\u003e\n\u003cp\u003eThis injector is made to work with modern automotive refrigerants R1234yf and R134a and includes an adapter for R410a systems. It accepts common compressor oils such as POE and mineral oils, and is suitable for fluorescent leak dyes used in troubleshooting.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eR1234yf and R134a quick-couplers included\u003c\/li\u003e\n  \u003cli\u003eR410a adapter for broader HVAC compatibility\u003c\/li\u003e\n  \u003cli\u003eSupports POE, mineral oils and fluorescent dyes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and build quality can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe injector body is machined from aluminum alloy for durability with a brass 1\/4\" SAE connector to withstand repeated service operations. The reinforced rubber hose and anodized finish resist wear and chemical exposure so the kit remains reliable over many uses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum alloy hand-turn body for lightweight strength\u003c\/li\u003e\n  \u003cli\u003eBrass threaded connector for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eThick rubber hose and protective flannelette bag included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use the Boltigen oil and dye injector safely?\u003c\/h3\u003e\n\u003cp\u003eFill the injector cylinder with the recommended oil or dye amount (typically up to 2 ounces), attach the check valve and tighten the inner\/outer cylinders to purge air. Connect the low-side coupler to the vehicle or system low port, open the shut-off and dispense the measured amount while monitoring system pressure.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFill inner cylinder up to recommended volume (about 2 oz)\u003c\/li\u003e\n  \u003cli\u003eUse valve-core remover and couplers to access low-side port\u003c\/li\u003e\n  \u003cli\u003eWear supplied gloves and stow kit in the included bag after use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Boltigen AC Oil Injector Kit is aimed at automotive technicians, HVAC service professionals and knowledgeable DIYers who need a portable, adaptable tool to add oil or fluorescent dye into R1234yf, R134a or R410a systems. If you perform routine AC servicing, leak tracing, or oil top-ups and want a compact kit with backflow prevention and accurate dosing, this tool provides a practical, durable solution.\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 this injector be used with fluorescent leak dye?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The Boltigen injector accepts fluorescent dyes and works with POE or mineral oils for leak detection in compatible AC systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include adapters for both R134a and R1234yf?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The kit provides low-side couplers for R1234yf and R134a plus an adapter for R410a systems.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Boltigen","offers":[{"title":"Default Title","offer_id":55171344400727,"sku":"B0CBRX14V1","price":59.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/boltigen-injector-front-view_beee9256-8e9d-4c50-a324-65cb7702b0f8.jpg?v=1790443320","url":"https:\/\/britishgarage.co.uk\/products\/boltigen-ac-oil-injector-kit-for-r1234yf-r134a-r410a-aluminum-dye-injector-with-shut-off-backflow-prevention","provider":"British Garage","version":"1.0","type":"link"}