Gates 18745 HVAC Heater Hose - Heater To Engine

Gates Molded Heater Hose for Nissan Maxima

The Gates 18745 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a formed routing path matters. It is made from EPDM and is shaped to match the factory layout for 1985-1988 Nissan Maxima heater-to-engine applications.

Gates Molded Heater Hose products are formed for direct-fit routing in compact cooling and HVAC plumbing layouts. This hose is suitable for coolant, water, and air service, and Gates also approves it for marine applications.

Key Features

• Factory-molded design for a precise hose path
• EPDM construction for coolant-system service
• Small inside diameters: 16 mm (0.62 in) and 19 mm (0.75 in)
• Centerline length: 363 mm (14.3 in)
• Built for heater-to-engine routing on select Nissan Maxima models
• Gates part number 18745 for easy identification

Detailed Description

Gates 18745 is a molded heater hose engineered to follow the original routing used in compact engine bays. Its formed shape helps maintain proper hose alignment in the heater-to-engine circuit on 1985-1988 Nissan Maxima models, reducing the need to force a straight hose into a curved path. The EPDM material is commonly used in cooling-system hoses for its service in coolant and water transfer applications.

This part cross-references Four Seasons 63205 for the same application. If you are searching for a molded heater hose for Nissan Maxima 1985-1988, Gates 18745 is the direct-fit reference to compare against the original hose layout.

What It Helps Address

• Cracked or deteriorated heater hose material
• Incorrect hose routing in tight engine compartments
• Coolant leaks at the heater-to-engine line
• Hose fitment issues caused by using a straight replacement hose
• Service replacement needs for a molded Nissan Maxima heater hose

Installation Notes and Tips

Verify the hose path, end diameters, and centerline length before installation. This hose is molded for the heater-to-engine position on 1985-1988 Nissan Maxima models, so compare the original routing and connection points to confirm a proper match. Inspect adjoining clamps, tubes, and fittings for wear before reassembly.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement for cooling, water, and air applications. The design follows factory-style routing for the specified Nissan Maxima fitment and is approved for marine applications.