Gates 12123 HVAC Heater Hose - Heater Inlet

Gates Molded Heater Hose for Nissan Murano

The Gates 12123 molded heater hose is an OEM-style coolant hose built for tight engine bays where a straight hose will not follow the factory routing. It is formed to match the original path on 2009-2014 Nissan Murano heater inlet applications and uses EPDM construction for coolant, water, and air service.

Key Features

• Factory-molded design for accurate routing in compact engine compartments
• EPDM rubber construction for heater, coolant, water, and air applications
• End I.D. measures 0.75 in. (19 mm) at both ends
• Centerline length measures 15.58 in. (396 mm)
• Approved for marine applications
• Gates part number 12123 for direct reference

Product Details

Gates Molded Heater Hose 12123 is built as a small I.D. molded coolant hose with the shape needed to follow factory hose routing in modern engine compartments. For Nissan Murano heater inlet service, the molded profile helps maintain the correct path and connection points while supporting coolant flow through the HVAC system. This hose is also suitable for water and air transfer applications, and the EPDM material is selected for use in demanding underhood environments. This part cross-references Carlson 13123 for the same application.

What This Hose Helps Address

• Cracked or deteriorated heater hose material
• Incorrect hose routing after service or replacement
• Coolant seepage at a worn hose section
• Restricted heater circuit flow caused by a damaged hose
• Fitment issues in tight engine compartments that require molded routing

Installation Notes and Tips

Verify the hose routing against the original part before installation on the 2009-2014 Nissan Murano heater inlet. Confirm both 0.75 in. ends seat fully on the mating connections and check that the molded shape follows the factory path without twist or stress. Gates 12123 should be matched to the vehicle’s heater inlet configuration and inspected after installation for proper sealing and coolant circulation.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement built to match factory fit and routing requirements. The molded construction and EPDM material support consistent service in coolant system applications, including the 2009-2014 Nissan Murano heater inlet position.