Replace R1234yf Valve Cores Without Discharging the SystemThe Mastercool 58490-YF Valve Core Remover/Installer Kit is built specifically for R1234yf automotive A/C systems. Featuring a shutoff valve and precision-engineered 14mm and 17mm R1234yf service port connectors, it allows technicians to remove and replace valve cores while the system is fully charged-saving time and reducing refrigerant loss.For Standard Valve Cores in R1234yf PortsThis kit is compatible with standard valve cores (0.210-36), the same internal cores used in both R134a and R1234yf systems. However, it includes the correct R1234yf service port fittings required to safely connect to newer vehicle platforms.Durable, Professional-Grade ToolBuilt with a stainless steel ball valve, brass body, and hardened steel shafts, the 58490-YF is a reliable, technician-grade tool for shop or mobile use.What's Included: Valve core remover/installer with internal shutoff 17mm high side R1234yf service port connector 14mm low side R1234yf service port connector Standard valve core shaft GM large bore valve core shaft Eaton high side valve core shaft Durable molded storage caseMastercool Quality & U.S.-Based SupportWith over 40 years of expertise in A/C tools, Mastercool builds its equipment for professionals. This tool is based on our original patented technology and supported by responsive, U.S.-based technical support.
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