{"product_id":"professional-ac-oil-dye-injector-kit-for-r134a-and-r1234yf-systems","title":"R134A R1234YF R410A AC Oil Dye Injector Kit - Multi System Injector","description":"\u003cp\u003eIn this review of the AC oil dye injector kit the bottom line is simple: this is a compact, practical tool for technicians and DIYers who need a single injector that works with modern R134A and R1234YF systems. The reviewer found the kit useful because it combines two quick couplers, two oil checkers and a clear 2 oz aluminium injector into one package, making routine oil addition, re-oiling and additive injection straightforward without buying multiple tools.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eDual system compatibility:\u003c\/strong\u003e Includes separate snap-on couplings for \u003cstrong\u003eR134A\u003c\/strong\u003e and \u003cstrong\u003eR1234YF\u003c\/strong\u003e so one injector handles both refrigerant types.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eFour functions in one tool:\u003c\/strong\u003e You can add oil, re-oil after component replacement, inject fluorescent scanner fluid and add other additives with the same injector.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eClear graduated capacity:\u003c\/strong\u003e The 2 oz aluminium injector and measuring cup are laser engraved from 1\/4 oz to 2 oz for accurate dosing.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOil level feedback:\u003c\/strong\u003e Two oil checkers help determine existing oil in the system before adding more, reducing the risk of overfilling.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSimple mechanical operation:\u003c\/strong\u003e The injector forces oil into the system by twisting the outer tube and screwing the plunger, so no pressurised tanks are required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at automotive A\/C technicians and capable DIYers who routinely service systems that use R134A or R1234YF refrigerants and need a dedicated oil\/dye injector rather than a multi-tool charging rig. The compact injector and included adapters make it a handy bench or mobile tool for topping up oil, adding dye for leak tracing, or injecting additives into systems.\u003c\/p\u003e\n\u003cp\u003eIt is less well suited for large-volume shop workflows that rely on integrated charging machines or for users who expect a fully pneumatic or powered injector; this is a manual, low-volume 2 oz injector intended for targeted oil or dye additions rather than bulk service work.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eWorks with both R134A and R1234YF systems thanks to separate snap-on couplers.\u003c\/li\u003e\n \u003cli\u003eMultiple functions cover oil addition, re-oiling, fluorescent fluid and additives, reducing the number of separate tools needed.\u003c\/li\u003e\n \u003cli\u003eLaser engraved measuring scale and included 2 oz cup help ensure accurate fluid dosing.\u003c\/li\u003e\n \u003cli\u003eCompact aluminium injector is simple to operate and portable for field use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eBuild quality reports are mixed, so some units may need inspection before regular use.\u003c\/li\u003e\n \u003cli\u003eManual operation and 2 oz capacity limit efficiency for large jobs or frequent high-volume dosing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eCompatible refrigerants\u003c\/td\u003e\n\u003ctd\u003eR134A, R1234YF (adapter for R410A included)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eInjector capacity\u003c\/td\u003e\n\u003ctd\u003e2 oz \/ 60 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMeasuring range\u003c\/td\u003e\n\u003ctd\u003e1\/4 oz \/ 7.5 ml to 2 oz \/ 60 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eIncluded couplers\u003c\/td\u003e\n\u003ctd\u003eR134A low side quick coupler with valve, R1234YF quick coupler\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eExtras\u003c\/td\u003e\n\u003ctd\u003e2 oil checkers, 2 oz measuring cup\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eBody material\u003c\/td\u003e\n\u003ctd\u003eAluminium injector body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor the price and versatility, this AC oil dye injector kit is a sensible buy for technicians and experienced DIYers who need a compact tool that handles \u003cstrong\u003eR134A\u003c\/strong\u003e and \u003cstrong\u003eR1234YF\u003c\/strong\u003e systems. It covers oil addition, dye and additive injection with clear measuring and oil check capability, offering good value for low- to medium-volume service tasks despite some variability in build quality.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this injector work on both R134A and R1234YF systems?\u003c\/strong\u003e\u003cbr\u003eYes. The kit includes separate snap-on couplers for R134A and R1234YF so it can be used on both system types.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much oil can the injector hold?\u003c\/strong\u003e\u003cbr\u003eThe aluminium injector holds up to 2 oz \/ 60 ml and the laser engraved scale and measuring cup allow doses as small as 1\/4 oz \/ 7.5 ml.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it inject dye and additives as well as oil?\u003c\/strong\u003e\u003cbr\u003eYes. One of the stated functions is adding fluorescent scanner fluid and other additives as required during service.\u003c\/p\u003e","brand":"GallopMax","offers":[{"title":"Default Title","offer_id":48144906289371,"sku":"B0C9GV4226","price":35.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/716MUC_ocSL._AC_SL1500.jpg?v=1768830763","url":"https:\/\/gearmusthave.com\/products\/professional-ac-oil-dye-injector-kit-for-r134a-and-r1234yf-systems","provider":"GearMustHave","version":"1.0","type":"link"}