Gates 19897 HVAC Heater Hose - Heater Inlet

Gates Molded Heater Hose 19897 Overview

The Gates Molded Heater Hose 19897 is a factory-molded, OEM-style coolant hose built for tight engine compartments where a straight hose will not route correctly. It is made from EPDM and is approved for coolant, water, air, and marine applications.

Compatible with 2007-2008 Nissan Maxima heater inlet applications, this molded heater hose follows the original routing for a cleaner, more accurate replacement. Gates 19897 is a practical choice when you need a formed hose that matches the vehicle’s factory layout.

Key Features

• Factory-molded design for OEM-style routing
• EPDM construction for coolant, water, and air service
• Small I.D. hose for tighter engine compartment packaging
• End 1 inside diameter: 0.73 in. (19 mm)
• End 2 inside diameter: 0.73 in. (19 mm)
• Centerline length: 28.6 in. (726 mm)
• Approved for marine applications

Product Details

Gates Molded Heater Hose line products are built to match factory hose shapes and routing requirements, which helps simplify replacement in modern vehicles with compact engine bays. This molded heater hose is formed to the correct shape for the application and uses EPDM material for common heating and cooling system service. Gates 19897 is listed for the heater inlet on the 2007-2008 Nissan Maxima, and the same part number is also referenced for related applications under cross-reference numbers 16507M and 64616.

This part cross-references Quality-Built 11897 for the same application.

What It Helps Address

• Cracked or aged heater hose material
• Improper hose routing in tight engine bays
• Coolant leaks at a formed hose section
• Restricted heater circuit flow from a damaged hose
• Replacement needs for a heater inlet hose on a Nissan Maxima

Installation Notes and Tips

Verify hose routing against the original part before installation and confirm the end diameters and centerline length match the vehicle layout. For 2007-2008 Nissan Maxima heater inlet service, route the hose to follow the factory path so it clears nearby components and maintains proper fitment. Inspect adjoining clamps, fittings, and coolant passages for wear or contamination before completing the repair.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement built to support factory fit and routing requirements. The EPDM construction and molded shape reflect the product line’s focus on accurate replacement for modern cooling system applications.