Gates 12497 HVAC Heater Hose - Heater Inlet

Gates Molded Heater Hose for Nissan Sentra

Gates 12497 is a molded heater hose built for tight engine bays where a straight hose will not route correctly. It is an OEM-style replacement for the heater inlet on 2013-2019 Nissan Sentra models and is formed to match the factory path.

Made from EPDM, this Gates molded coolant hose is suitable for coolant, water, and air service, and it is also approved for marine applications. The molded shape and small inside diameter help support a clean, factory-like fit in compact HVAC and cooling system layouts.

Key Features

• Factory-molded, OEM-style heater hose
• EPDM construction for coolant, water, and air applications
• Small I.D. design for tighter engine compartments
• 19 mm / 0.75 in. inside diameter at both ends
• 11.5 in. centerline length for the specified routing
• Fits 2013-2019 Nissan Sentra, heater inlet
• Gates 12497 replacement hose for HVAC and cooling service

Detailed Description

Gates Molded Heater Hose 12497 is built for the heater inlet connection on the Nissan Sentra, with a molded profile that follows the original hose routing. This helps maintain proper hose alignment in the engine compartment and supports a direct replacement for the factory-style layout. Gates 12497 is also cross-referenced to Quality-Built 13497 for the same application.

The hose uses EPDM material and measures 19 mm (0.75 in.) at both ends with an 11.5 in. centerline length. That combination makes it a practical choice for Nissan Sentra heater hose replacement when the original hose has softened, cracked, or no longer holds its shape. Gates 12497 is also a fit for 2013-2019 Nissan Sentra heater inlet service where molded routing is required.

What It Is Used For

• Replacing a leaking or cracked heater inlet hose
• Restoring coolant flow through the HVAC heater circuit
• Correcting hose routing in a compact engine bay
• Addressing soft, swollen, or collapsed hose sections
• Servicing a 2013-2019 Nissan Sentra heater hose connection

Installation Notes and Tips

Verify the hose path, end diameters, and centerline length against the original part before installation. Inspect adjoining heater pipes, clamps, and fittings for wear or corrosion, and flush the cooling system if contamination is present. Confirm the hose is routed without kinks or twist so the molded shape matches the factory position on the Nissan Sentra.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement for factory routing and fit. The EPDM construction and molded form are selected for use in coolant, water, air, and approved marine applications.