Gates 12173 HVAC Heater Hose - Heater or Heater Inlet

Gates Molded Heater Hose 12173

Gates 12173 is a factory-molded heater hose built for tight engine bays where a straight hose will not route correctly. It uses EPDM construction and an OEM-style molded shape to support coolant, water, and air transfer in the heating and cooling system.

This molded heater hose is a direct-fit option for select Jeep Compass and Jeep Patriot applications, including heater inlet and heater positions. Gates 12173 is also approved for marine applications, adding versatility for service and replacement work where a formed small I.D. hose is required.

Key Features

• Gates Molded Heater Hose, part number 12173
• EPDM construction for heater and coolant system service
• Factory-molded, OEM-style routing for compact engine compartments
• Small inside diameter: 0.62 in. / 16 mm at both ends
• Centerline length: 17.28 in. / 439 mm
• Suitable for coolant, water, and air applications
• Approved for marine applications

Product Details

Gates Molded Heater Hose 12173 is formed to match the routing needs of modern, tighter engine layouts. The molded profile helps the hose follow the original path in the heating circuit, while the EPDM material supports everyday thermal and fluid exposure in HVAC and coolant service. This part number is a practical replacement choice for Jeep Compass and Jeep Patriot models that use a molded heater inlet or heater hose configuration.

This part cross-references Carlson 13173 for the same application.

Common Uses

• Heater hose leakage at the inlet connection
• Cracked or hardened molded hose in the cooling circuit
• Poor heater flow caused by a damaged hose path
• Replacement of a formed hose that no longer holds its shape
• Service on Jeep Compass or Jeep Patriot heater inlet routing

Installation Notes

• Verify hose routing against the original molded shape before installation.
• Confirm end diameters and centerline length match the vehicle connection points.
• Inspect adjoining heater pipes, clamps, and fittings for wear before reassembly.
• Use the vehicle’s specified coolant service procedure after replacement.

Quality Assurance

Gates manufactures this molded heater hose as an OEM-style replacement part for HVAC and coolant system service. Part number 12173 is built to match the fitment and routing requirements listed for select Jeep Compass and Jeep Patriot applications.