ACDelco 26309X Gold Molded Engine Coolant Heater Hose

The ACDelco 26309X is a Gold (Professional) molded engine coolant heater hose engineered as a high-quality replacement for original equipment parts. Designed to transport coolant between the engine and heater core, this factory-molded hose maintains proper thermal management and cabin heating performance.

Key Features:

• GM OE-Style Molded Design: Factory-molded into the GM Original Equipment style and shape for a precise, drop-in fit in today's tighter engine compartments
• EPDM Rubber Construction: Built from a proprietary blend of EPDM synthetic rubber that is highly pliable, extends hose service life, and resists electrochemical degradation (ECD) — the leading cause of hose failure
• Wide Temperature Range: Rated from -40°F to 275°F (-40°C to 135°C), delivering reliable performance in extreme cold and high-heat engine environments
• Multi-Application Approved: Suitable for coolant, water, and air transfer applications; also approved for marine use. Not intended for fuel or oil transfer.
• ACDelco Gold Quality: Backed by General Motors and manufactured to meet specifications for fit, form, and function across GM vehicles and most other makes and models

Replacing a worn or cracked heater hose promptly prevents coolant leaks, engine overheating, and interior heating failure. The ACDelco 26309X delivers the durability and reliability expected from a GM-backed component.