Mastercool 58560 Eaton R134a Valve Core Remover/Installer
Mastercool 58560 Eaton R134a Valve Core Remover/Installer Kit – for 8mm and 10mm Eaton-Style Cores – Includes R134a Fittings and Storage Case
- ✔️ DESIGNED FOR EATON-STYLE R134A VALVE CORES – Services both 8mm (low side) and 10mm (high side) Eaton-style valve cores commonly found in GM and Chrysler R134a systems.
- ✔️ FOR USE ON CHARGED SYSTEMS – Built-in shutoff valve allows core replacement while the system remains pressurized—no need to recover refrigerant.
- ✔️ R134A SERVICE PORT FITTINGS INCLUDED – Kit includes the correct 13mm (low side) and 16mm (high side) R134a connectors.
- ✔️ NOT FOR USE WITH R1234YF OR GM LARGE BORE CORES – This kit is designed specifically for R134a systems and does not include connectors for R1234yf vehicles or tools for GM large bore cores.
- ✔️ PRECISION COMPONENTS FOR RELIABLE PERFORMANCE – Features hardened steel shafts, a stainless steel ball valve, and a brass body built for daily shop use.
- ✔️ INCLUDES CARRYING CASE – Durable molded storage case keeps all components organized and protected between jobs.
- ✔️ TRUSTED QUALITY & U.S. SUPPORT – Built by Mastercool, a U.S.-based leader in A/C service tools with over 40 years of technician-trusted performance.
Eaton-Style Valve Core Service for R134a Systems
The Mastercool 58560 Valve Core Remover/Installer Kit is purpose-built for technicians working on GM and Chrysler R134a systems equipped with Eaton-style valve cores. It allows you to remove and install 8mm (low side) and 10mm (high side) valve cores while the system remains pressurized—saving time and refrigerant.
Built for R134a – Not for R1234yf
This kit is designed specifically for R134a service ports and includes both 13mm and 16mm connectors. It is not compatible with R1234yf vehicles or GM large bore valve cores.
Durable Components, Shop-Ready Design
Featuring hardened steel shafts, a stainless steel ball valve, and a solid brass body, the 58560 is a reliable tool for daily professional use. All components come packaged in a durable molded carrying case for easy transport and protection.
What’s Included:
- Valve core remover/installer with shutoff valve
- R134a high side (16mm) connector
- R134a low side (13mm) connector
- Eaton low side valve core shaft (8mm)
- Eaton high side valve core shaft (10mm)
- Molded carrying case
Built by Mastercool – Trusted by Professionals
Mastercool has been a leader in automotive A/C service tools for over 40 years. Our tools are technician-tested and backed by responsive, U.S.-based customer support.
| SKU: | B007QV85JY |
| Weight: | 1.7 Pounds |
| Size: | 9.9 inches |
| Dimensions: | 9.9 x 5.7 x 1.8 inches |
| Brand: | Mastercool |
| Model: | Eaton R134a |
| Manufacture: | Mastercool |
| Size: | 9.9 inches |
From the manufacturer
 MASTERCOOL (58490) Universal A/C Valve Core Remover/Installer, Black |  Mastercool (58531) Black R134a Standard and JRA Valve Core Remover |  Mastercool (58560) Black R134a and Eaton Valve Core Remover/Installer | |
|---|---|---|---|
| Customer Reviews | 4.4 out of 5 stars314 | 4.3 out of 5 stars207 | 3.7 out of 5 stars31 |
| Price | $178.73 | $93.79 | $112.75 |
| Valve assembly | ✓ | ✓ | ✓ |
| R134a high side 16mm connector and R134a low side 13mm connector | ✓ | ✓ | ✓ |
| 1/4″ FL swivel connector | ✓ | no data | no data |
| Standard valve core remover/installer assembly | ✓ | ✓ | ✓ |
| GM large bore valve core remover/installer assembly | ✓ | no data | no data |
| JRA R134a valve core remover/installer assembly | ✓ | ✓ | no data |
| Eaton R134a high and low side valve core remover/installer assembly | ✓ | no data | ✓ |
| Adapter 1/4″-M x 3/16″-F high side GM/Ford | ✓ | no data | no data |
| Adapter 1/4″-M x 1/8″-F high side Ford | ✓ | no data | no data |