Gates 19035 HVAC Heater Hose

Gates Molded Heater Hose 19035 Overview

Gates 19035 is a factory-molded coolant hose built for tight engine bays where a straight hose will not route correctly. This molded heater hose uses EPDM construction and a 6.1-inch centerline length with 0.62-inch inside diameter ends for direct replacement service in HVAC and cooling system applications.

The Gates Molded Heater Hose line is engineered in an OEM-style shape to match compact routing needs in modern vehicles. It is also approved for coolant, water, air, and marine applications, making it a practical choice for service work on systems that require a formed hose profile.

Key Features

• Gates part number 19035 molded heater hose
• EPDM material for coolant and heater hose service
• Factory-molded shape for tight engine compartment routing
• 0.62 in. inside diameter at both ends
• 6.1 in. centerline length for formed-fit installation
• Suitable for coolant, water, and air applications
• Approved for marine applications

Detailed Description

This molded HVAC heater hose is designed for vehicles that require a shaped coolant line rather than a universal straight hose. The formed profile helps match original routing on applications such as 2010-2014 Lexus RX450h auxiliary water pump inlet service, 2011-2013 Toyota Highlander auxiliary water pump inlet service, and other listed cooling-system positions. It also cross-references BBB Industries 11035 for the same application.

Use Gates 19035 when replacing a worn, cracked, or collapsed molded hose in the heater or coolant circuit. The OE-style form factor supports clean routing in confined spaces, including applications on the Lexus RX450h, Toyota Highlander, and select Cadillac, Jeep, Ford, Mercury, Pontiac, and Oldsmobile models listed in the fitment data.

Common Repair Uses

• Replacing a leaking molded heater hose at the auxiliary water pump inlet
• Restoring coolant flow after hose cracking or hardening
• Correcting routing issues in tight engine compartments
• Addressing heater circuit seepage or hose deformation
• Servicing formed coolant lines on HVAC-related plumbing

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. Compare the original hose shape to the Gates 19035 molded profile to confirm the correct position, especially on Lexus RX450h and Toyota Highlander applications. Inspect adjoining pipes, clamps, and sealing surfaces for wear before reassembly, and flush the system if contamination is present.

Quality Assurance

Gates is known for OE-style molded hose construction, and this hose is built to the dimensional and material requirements needed for cooling-system service. The EPDM construction and factory-molded shape support consistent fitment across the listed vehicle applications.