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.
Consists of:
- Â Valve assembly
- Â R134a high side 16 mm connector
- Â R134a low side 13 mm connector
- Â 1/4" FL swivel connector
- Â Standard valve core remover/installer assembly
- GM large bore valve core remover/installer assembly
- Â JRA R134a valve core remover/installer assembly
- Â Eaton R134a low side valve core remover/installer assembly
- Â Eaton R134a high side valve core remover/installer assembly
- Â Adapter 1/4"-M x 3/16"-F high side GM/Ford
- Â Adapter 1/4"-M x 1/8"-F high side Ford
- ✔️ 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.
- ✔️ 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.
