Gates 18090 HVAC Heater Hose - Pipe To Throttle Body

Gates Molded Heater Hose 18090

The Gates 18090 molded heater hose is an OEM-style coolant hose built for tight engine bays where a straight hose will not route correctly. Its factory-molded shape and small inside diameter support clean routing for coolant, water, and air service, and it is approved for marine applications.

Key Features

• EPDM construction for heater and coolant service
• Factory-molded profile for compact engine compartment routing
• Small I.D. design with 8 mm inside diameter at both ends
• 19.1 in. centerline length for the specified application
• Direct replacement style for select Toyota Prius, Prius Prime, Prius V, and Prius Plug-In models

Product Details

This Gates Molded Heater Hose line is built around OE-style fit and formed routing, making it a practical choice for vehicles with limited clearance around the throttle body area. Part number 18090 is a molded EPDM hose with equal 8 mm end diameters and a 485 mm centerline length, matching the shape needed for the listed Toyota applications. It is used in coolant, water, and air circuits, and the molded design helps maintain the intended hose path in compact layouts. This part cross-references Bosch 18090 for the same application.

Vehicle Fitment

• Fits 2010-2017 Toyota Prius, Pipe To Throttle Body
• Fits 2017 Toyota Prius Prime, Pipe To Throttle Body
• Fits 2012-2017 Toyota Prius V, Pipe To Throttle Body
• Fits 2012-2015 Toyota Prius Plug-In, Pipe To Throttle Body

Common Replacement Reasons

• Cracked or hardened heater hose material
• Coolant seepage at a molded hose section
• Poor routing from a previous incorrect hose shape
• Restricted flow caused by hose deterioration
• Need for an OE-style molded replacement on a Toyota Prius, Prius Prime, Prius V, or Prius Plug-In

Installation Notes

Verify the hose routing, end diameters, and centerline length before installation. Confirm the application is the pipe-to-throttle-body location on the listed Toyota models, and inspect adjoining pipes and clamps for wear or corrosion before reassembly. Proper routing is important on molded hoses to avoid kinks, twist, or contact with nearby components.

Quality Assurance

Gates molded hoses are built to match OE-style form and fit requirements for the specified application. The EPDM construction and molded profile support dependable service in the cooling system environment.