Mastercool MASTERCOOL 58490 Mastercool Universal A/C Valve Core Remover/Installer, Black

Replace R134a Valve Cores Without Discharging the System The Mastercool 58490 Valve Core Remover/Installer Kit allows technicians to remove and install valve cores while the system remains pressurized—saving time and preventing refrigerant loss. Designed for R134a systems, this tool includes high and low side connectors and a patented shutoff valve for safe service under pressure. Comprehensive Coverage for Standard, JRA, and Eaton Cores This professional-grade kit is compatible with standard (0.210-36), JRA (M6 x 0.75), and Eaton-style (M8 and M10) valve cores used in most R134a automotive systems. It includes multiple core shafts and port adapters to support a wide range of vehicle platforms. All-In-One Kit for Professionals The 58490 includes everything technicians need: R134a high and low side connectors, interchangeable shafts, and precision adapters—all stored in a durable molded case. What's Included: Valve core remover/installer with shutoff valve R134a high side (16mm) connector R134a low side (13mm) connector 1/4" FL swivel connector Standard valve core shaft GM large bore valve core shaft JRA valve core shaft Eaton low side valve core shaft (8mm) Eaton high side valve core shaft (10mm) High side GM/Ford adapter fittings Molded carrying case Trusted Quality and U.S.-Based Support Mastercool has been a leader in A/C tools for over 40 years. This tool is built on our original patented technology and backed by responsive, U.S.-based customer support.