58560
R134a EATON (M8 & M10) VALVE CORE KIT

Product Description

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.

FEATURES:

• 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.

58560 R134a Eaton (M8 & M10) Valve Core Kit includes

• 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

OPTIONAL ACCESSORIES: UPGRADE YOUR KIT

Hi-Flo Adapters for Unrestricted Recovery & Charging
Maximize your system workflow by pairing your 58490 Kit with our optional Hi-Flo Adapters. Designed to connect directly to the valve body after core removal, these adapters create a direct line between the system port and your recovery machine or charging manifold.

• Maximum Efficiency – Eliminates flow restrictions caused by standard service port geometry and valve cores.
• Faster Turnaround – Speeds up recovery and evacuation/charging times significantly.
• Direct Connection – Easily attaches to the valve body for seamless hose hookup.

58490-AD-14M: Adapter Hi-Flo 1/4” FLM
58490-AD-12M: Adapter Hi-Flo 1/2” ACME-M