Gates 19048 HVAC Heater Hose - Heater To Pipe-2

Gates 19048 Molded Heater Hose

The Gates 19048 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a straight hose will not route correctly. It is formed to match the application shape and is made from EPDM for use in coolant, water, and air service, with marine application approval noted by the manufacturer.

Compatible with select Pontiac Grand Am, Oldsmobile Alero, Chevrolet Malibu, and Oldsmobile Cutlass heater-to-pipe applications, this molded heater hose supports direct replacement needs for vehicles that require a factory-shaped hose path. The Gates Molded Heater Hose line focuses on fitment accuracy for smaller-diameter routing in modern engine bays.

• OEM-style molded hose shape for precise routing
• EPDM construction for heater, coolant, water, and air service
• Small inside diameter design for tighter engine compartment layouts
• Factory-molded profile for heater-to-pipe connections
• Approved for marine applications per manufacturer information

Detailed Product Overview

Gates part number 19048 is a molded heater hose with a 0.6 in. (15 mm) end 1 inside diameter, a 0.72 in. (18 mm) end 2 inside diameter, and a 12.8 in. (325 mm) centerline length. Its molded EPDM construction helps it follow the original hose path in applications where clearance is limited, making it a practical replacement for the heater-to-pipe routing used on the listed Pontiac, Oldsmobile, and Chevrolet models. This part cross-references Continental 63993 for the same application.

Common Uses

• Replacing a cracked or leaking heater hose
• Restoring proper coolant flow through the heater circuit
• Correcting hose routing in a tight engine bay
• Addressing soft, swollen, or heat-aged rubber hose sections
• Repairing a damaged heater-to-pipe connection on Grand Am, Alero, Malibu, or Cutlass models

Installation Notes and Tips

Verify hose routing, end diameters, and centerline length against the original part before installation. Because this is a molded hose, align it to the factory path to avoid kinks, twist, or contact with nearby components. Inspect adjoining pipes, clamps, and coolant connections for wear before reassembly.

Quality Assurance

Gates is known for supplying OE-style hose solutions, and the 19048 follows that approach with a factory-molded profile and application-specific dimensions. Confirm fitment by year, make, model, and heater-to-pipe position before ordering.