Gates 19753 HVAC Heater Hose - Engine To Connector, Heater To Valve or Inverter To Motor

Gates Molded Heater Hose for Tight Engine Bays

The Gates 19753 molded heater hose is a factory-shaped coolant hose built for compact engine compartments where a straight hose will not route correctly. Made from EPDM, it serves coolant, water, and air transfer needs and is approved for marine applications.

For Nissan LEAF inverter to motor service, this Gates Molded Heater Hose follows OE-style routing to help maintain proper hose alignment in confined spaces. It also cross-references Gates 19753 and Unity Automotive 11753 for the same application.

Key Features

• EPDM construction for coolant, water, and air applications
• Factory-molded shape for OE-style routing
• 0.75 in. inside diameter at both ends
• 7 in. centerline length for compact installations
• Approved for marine applications
• Gates part number 19753

Detailed Description

Gates Molded Heater Hose 19753 is built as a small I.D. molded coolant hose for modern vehicles with tighter packaging around the engine bay. Its molded form supports cleaner routing than universal straight hose, while the EPDM material is suited for heat and coolant exposure in HVAC and cooling-system service. This hose is used in applications such as Nissan LEAF inverter to motor routing, Infiniti M35 engine to connector service, and Nissan 240SX heater to valve routing.

Compatible vehicle coverage includes 2018-2023 Nissan LEAF, 2016 Nissan LEAF, 2013-2015 Nissan LEAF, 2006-2010 INFINITI M35, and 1995-1998 Nissan 240SX. The Gates 19753 molded heater hose is a direct-fit style solution for these listed applications and supports OE-style hose routing where space is limited.

Common Problems This Hose Can Address

• Cracked or deteriorated heater hose material
• Improper hose routing in tight engine compartments
• Coolant leaks at a molded hose section
• Replacement needs for inverter-to-motor coolant routing on Nissan LEAF models
• Service replacement for heater-to-valve or engine-to-connector hose runs

Installation Notes and Tips

Verify end diameters, centerline length, and molded shape against the original hose before installation. For 2016 Nissan LEAF applications, confirm the build date note of March 31, 2016 and older, and cut to fit only where specified by the vehicle listing. Inspect adjoining clamps, connectors, and mating surfaces for wear before installing the new hose.

Quality Assurance

Gates is known for OE-style hose construction and application-specific fitment across cooling and HVAC service parts. Part number 19753 is manufactured to match the listed molded hose applications and routing requirements.