Gates 19605 HVAC Heater Hose

Gates 19605 Molded Heater Hose Overview

The Gates 19605 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a straight hose will not follow the factory routing. Made from EPDM and factory-molded to shape, it supports coolant, water, and air transfer and is also approved for marine applications.

For drivers servicing Cadillac Seville, Cadillac DeVille, Chevrolet Camaro, Pontiac Firebird, or Nissan Maxima applications, this molded heater hose helps restore the original hose path with a precise fit. The Gates Molded Heater Hose line is focused on small I.D. hoses that match modern packaging constraints and factory routing requirements.

Key Features

• Gates part number 19605
• Factory-molded, OE-style hose shape
• EPDM construction for coolant and heater service
• Small inside diameter: 0.8 in. / 20 mm at both ends
• Centerline length: 9.4 in. / 239 mm
• Used for coolant, water, and air applications
• Approved for marine applications
• Fits tight engine compartments where formed routing is required

Product Details

This molded heater hose is built to follow the original routing used in a range of HVAC and cooling system layouts. The 19605 is a direct-style replacement for vehicles that need a formed hose between heater, valve, pipe, reservoir, or engine connections. It is listed across multiple fitments including 2000-2004 Cadillac Seville, 1998-1999 Cadillac DeVille, 1987-1992 Chevrolet Camaro, 1987-1992 Pontiac Firebird, and 1991-1994 Nissan Maxima.

This part cross-references Dayco 70468 and Continental 63075 for the same application.

Common Problems This Hose Can Address

• Cracked or softened heater hose material
• Coolant leaks at a molded hose section
• Poor hose routing in compact engine bays
• Loss of heater circuit flow from a damaged hose
• Incorrect fitment from a universal straight hose

Installation Notes and Tips

• Verify the hose path and connection points before installation.
• Match the end inside diameter and centerline length to the original hose.
• Inspect adjoining pipes, valves, and reservoir nipples for corrosion or damage.
• Use the vehicle-specific position listed in the fitment data, such as heater to pipe, tank to engine, or pipe to reservoir.
• Confirm the hose is routed without kinks or twist after installation.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement for factory routing requirements. The EPDM construction and molded profile support consistent fitment across the listed Cadillac, Chevrolet, Pontiac, Oldsmobile, Nissan, and Dodge applications.