Gates 18274 HVAC Heater Hose - Pipe-2 To Reservoir

Gates Molded Heater Hose 18274 Overview

The Gates 18274 molded heater hose is an OEM-style coolant hose built for tight engine bays where a straight hose will not follow the factory routing. It is formed to match the original path and is suitable for coolant, water, and air applications, with marine application approval noted by the manufacturer.

For Volkswagen Passat and Audi A4 applications, this molded heater hose supports the pipe-to-reservoir connection with the correct shape for compact underhood layouts. The Gates Molded Heater Hose line focuses on factory-molded replacement routing for vehicles that need a precise fit in smaller engine compartments.

Key Features

• Gates part number 18274
• Factory-molded, OE-style hose shape
• EPDM construction for heater and coolant service
• End inside diameter: 0.3 in. / 8 mm
• Centerline length: 12.3 in. / 312 mm
• Designed for coolant, water, and air applications
• Approved for marine applications

Detailed Description

This molded heater hose is built to follow the original routing used in compact engine compartments, helping maintain proper hose alignment between the pipe and reservoir. The EPDM material is commonly used in cooling-system service, and the molded shape helps the hose sit correctly where space is limited. This is a practical replacement for owners searching for a Gates 18274 heater hose for Volkswagen Passat or Audi A4 cooling system service.

This part cross-references Rein CHE0352 for the same application.

What It Helps Address

• Cracked or aged heater hose material
• Improper hose routing in tight engine bays
• Coolant leaks at a worn hose section
• Fitment issues caused by using a straight hose in a molded application
• Service needs on pipe-to-reservoir heater hose runs

Installation Notes and Tips

Verify the hose routing, end diameters, and centerline length before installation. This Gates 18274 molded heater hose is listed for 1997-2003 Audi A4, pipe-2 to reservoir; 1997-2003 Audi A4 Quattro, pipe-2 to reservoir; and 1998-2005 Volkswagen Passat, pipe-2 to reservoir. Confirm the original hose path and connection points before replacing the part.

• Fits 1998-2005 Volkswagen Passat, Pipe-2 To Reservoir
• Fits 1997-2003 Audi A4, Pipe-2 To Reservoir
• Fits 1997-2003 Audi A4 Quattro, Pipe-2 To Reservoir

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement with factory-formed routing and EPDM construction. The design supports consistent fitment for the listed Volkswagen Passat and Audi A4 applications.