







🔩 Master your A/C service game—no pressure, all precision!
The Mastercool 81490 Valve Core Remover & Installer is a compact, professional-grade tool designed to replace standard R134a valve cores without discharging the system. Featuring built-in shutoff valves and dual 13mm/16mm connectors, it enables efficient servicing of automotive A/C systems under full pressure. Crafted with hardened steel and brass for durability, this tool is ideal for technicians seeking fast, reliable valve core maintenance backed by Mastercool’s 45+ years of HVAC expertise.







| Manufacturer | Mastercool |
| Brand | Mastercool |
| Model | R134a Installer |
| Product Dimensions | 17.27 x 12.45 x 4.83 cm; 249.48 g |
| Item model number | R134a Installer |
| Manufacturer part number | 81490 |
| Voltage | 12 Volts |
| Wattage | 1200 watts |
| Item Weight | 249 g |
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