Gates 18344 Molded Heater Hose

The Gates 18344 is a precision-engineered molded HVAC heater hose designed for automotive coolant and air transfer applications. This pre-shaped curved hose features dual inside diameters to accommodate different connection sizes, making it ideal for applications requiring diameter transitions.

Key Specifications:

• Centerline Length: 21.8 inches (554mm)
• Inside Diameter 1: 0.63 inches (16mm)
• Inside Diameter 2: 0.75 inches (19mm)
• Weight: 0.32 lbs
• Number of Branches: 0

Construction and Features:

• EPDM tube with synthetic fiber reinforcement and EPDM cover for superior durability
• Engineered to resist electrochemical degradation (ECD), the leading cause of heater hose failure
• Resists water permeation, heat, ozone, and chemical coolants
• Pre-molded curved design ensures proper fit and eliminates kinking
• Temperature range: -40°F to +275°F (-40°C to +135°C)
• Meets SAE 20R3 EC Class D1 specifications

This molded heater hose is compatible with air and water coolant applications. Install using hose bead fittings fastened with hose clamps. Do not use for fuel or oil transfer applications. Gates recommends replacing hose clamps each time a new coolant hose is installed for optimal performance.