Gates 18179 HVAC Heater Hose - Pipe Assembly To Water Housing or Throttle Body Outlet

Gates 18179 Molded Heater Hose Overview

The Gates 18179 molded heater hose is a factory-molded, OE-style coolant hose built for tight engine bays where a straight hose will not route correctly. Made from EPDM, it is suitable for coolant, water, and air service, and it is also approved for marine applications.

This molded heater hose is a direct-fit style replacement for select Subaru Forester, Subaru WRX, and Acura MDX applications. The Gates Molded Heater Hose line is engineered for vehicles that need precise routing and a formed shape to match the original hose path.

Key Features

• Factory-molded OE-style shape for compact engine compartments
• EPDM construction for coolant, water, and air applications
• Small inside diameter design for tight-fitting hose connections
• Centerline length: 7.2 in. (183 mm)
• End 1 inside diameter: 0.29 in. (7 mm)
• End 2 inside diameter: 0.29 in. (7 mm)
• Approved for marine applications

Product Details

Gates part number 18179 is a molded heater hose designed to follow the original routing used in select HVAC and cooling system layouts. Its formed construction helps maintain proper hose alignment in applications such as the throttle body outlet on 2014-2018 Subaru Forester and 2015 Subaru WRX, as well as the pipe assembly to water housing on 2007-2009 Acura MDX. If you are replacing a worn or hardened hose, Gates 18179 provides an OE-style replacement shape for these specific vehicle fitments.

This part cross-references Anchor 10179 for the same application.

Common Replacement Reasons

• Cracked or hardened heater hose material
• Coolant seepage at a formed hose section
• Improper routing from a previous straight-hose repair
• Heat-related hose deformation in a tight engine compartment
• Loss of original hose shape at the throttle body outlet or water housing connection

Installation Notes

Verify hose routing, end diameters, and centerline length before installation. Because this is a molded hose, align it to the original path before tightening clamps so the hose is not twisted or forced into position. Confirm the connection points are clean and free of old hose material before installing the replacement.

Compatible With 2014-2018 Subaru Forester, throttle body outlet; 2015 Subaru WRX, throttle body outlet; and 2007-2009 Acura MDX, pipe assembly to water housing.

Quality Assurance

Gates is known for OE-style hose engineering across cooling and HVAC applications. Part number 18179 is built to match the formed routing needed in select Subaru and Acura applications, supporting accurate replacement of the original molded hose.