MacKay CH2542 Heater Hose

The MacKay CH2542 is a precision-engineered heater hose designed to provide reliable coolant circulation in automotive heating systems. Manufactured in Australia by MacKay Consolidated Industries, this heater hose meets the demanding quality standards required by OEM vehicle manufacturers including GM Holden, Ford, Toyota, and Nissan.

Key Features:

• Manufactured from high-quality heat, water, and ozone-resistant EPDM rubber compound
• Formulated for electrochemical degradation (ECD) resistance to prevent premature failure
• Embedded Aramid/Rayon lockstitch reinforcement for enhanced durability
• Engineered to exceed SAE J20R3 Type EC Class D-1 and D-2 specifications
• Resistant to harsh under-bonnet temperatures without cracking or splitting
• ISO/TS 16949 and ISO 9001 quality certified manufacturing

This heater hose is designed for water and coolant use only—not suitable for fuel, oil, transmission fluid, or brake fluid applications. MacKay heater hoses are built for long service life, providing reliable performance in demanding cooling system environments while resisting ozone cracking and electrochemical degradation that can compromise inferior hoses.