Mastercool 58490 R134a Valve Core Remover/Installer Kit – Works Under Pressure – Covers Standard, JRA, Eaton Cores – Includes Shafts, Adapters, R134a Fittings & Case

Mastercool 58490 R134a Valve Core Remover/Installer Kit – Works Under Pressure – Covers Standard, JRA, Eaton Cores – Includes Shafts, Adapters, R134a Fittings & Case

• ✔️ SERVICE VALVE CORES UNDER PRESSURE – Remove and replace valve cores without discharging the system using built-in shutoff and ball valve control.
• ✔️ UNIVERSAL R134a COVERAGE – Works with standard valve cores (0.210-36), JRA (M6 x 0.75), and Eaton-style cores (8mm & 10mm threads).
• ✔️ COMPLETE ADAPTER SET INCLUDED – Comes with high and low side R134a connectors (13mm and 16mm), plus multiple shafts and adapters for maximum coverage.
• ✔️ IDEAL FOR PROFESSIONAL TECHNICIANS – Designed for full system compatibility across most R134a passenger vehicle platforms.
• ✔️ DURABLE, FIELD-READY CONSTRUCTION – Features brass body, stainless steel ball valve, and hardened steel shafts.
• ✔️ INCLUDES MOLDED CARRYING CASE – Keeps all adapters, shafts, and connectors organized and protected.
• ✔️ ORIGINAL MASTERCOOL DESIGN – Built on patented technology originally developed by Mastercool, trusted by professionals for decades.
• ✔️ TRUSTED QUALITY AND U.S. SUPPORT – Mastercool delivers over 40 years of A/C service innovation with responsive, U.S.-based customer support and technician-first design.

<p>Allows the user to service valve cores without losing the systems charge. Kit covers all R12 and R134a system valve cores for Standard, JRA, Eaton and GM large bore. Patent # 6253436.</p> <p>Consists of:</p> <ul> <li> Valve assembly</li> <li> R134a high side 16 mm connector</li> <li> R134a low side 13 mm connector</li> <li> 1/4" FL swivel connector</li> <li> Standard valve core remover/installer assembly</li> <li>GM large bore valve core remover/installer assembly</li> <li> JRA R134a valve core remover/installer assembly</li> <li> Eaton R134a low side valve core remover/installer assembly</li> <li> Eaton R134a high side valve core remover/installer assembly</li> <li> Adapter 1/4"-M x 3/16"-F high side GM/Ford</li> <li> Adapter 1/4"-M x 1/8"-F high side Ford</li> </ul>