Gates 18461 HVAC Heater Hose

Gates 18461 Molded Heater Hose Overview

The Gates 18461 molded heater hose is an OEM-style coolant hose built for tight engine compartments where a formed hose is required. Made from EPDM, it is suitable for coolant, water, and air service, and it is also approved for marine applications.

This Gates Molded Heater Hose line is focused on factory-shaped routing for applications that need a small inside diameter and a precise molded profile. For Nissan and INFINITI vehicles with the listed heater and coolant routing points, the 18461 helps maintain the original hose path and connection geometry.

Key Features

• EPDM construction for coolant, water, and air service
• Factory-molded shape for tighter engine bay routing
• Small inside diameter design for OE-style fitment
• OEM-style replacement hose for heater and coolant circuits
• Approved for marine applications
• Part number 18461 for easy identification and ordering

Detailed Product Description

Gates 18461 is a molded heater hose with a 12 mm (0.46 in) inside diameter at both ends and a 173 mm (6.8 in) centerline length. Its molded EPDM construction is intended for applications where a straight hose will not follow the original routing, including heater, coolant, and related fluid transfer paths. This part cross-references Continental 64334 for the same application. In fitment listings, it appears on Nissan TITAN, Frontier, Xterra, Pathfinder, Armada, NV2500, NV3500, and INFINITI QX4 applications where the original hose route requires a formed replacement.

For buyers searching for a Gates 18461 heater hose for Nissan TITAN oil cooler inlet service or a molded heater hose for Nissan Pathfinder and Xterra coolant routing, this part matches the OE-style shape needed for proper installation and routing clearance.

What It Is Used For

• Replacing a worn or leaking molded heater hose in the original routing path
• Restoring coolant flow between oil cooler, thermostat, pipe, or manifold connections
• Addressing hose collapse, cracking, or softening in EPDM coolant lines
• Correcting fitment issues in compact engine compartments that require a molded hose
• Servicing Nissan and INFINITI heater and coolant hose locations listed in the fitment data

Installation Notes and Tips

Verify the hose route, end diameters, and centerline length before installation. This molded hose is intended for the specific positions listed in the fitment data, including oil cooler to pipe, oil cooler to thermostat, oil cooler inlet, intake manifold to pipe assembly, and pipe-2 to pipe-4 locations. Confirm that the replacement follows the original molded path so the hose does not twist, kink, or contact nearby components. Use clean mating surfaces and inspect adjoining pipes, clamps, and fittings for wear before reassembly.

• Fits 2012-2015 Nissan Armada, Oil Cooler To Pipe
• Fits 2013-2015 Nissan NV2500, Oil Cooler To Thermostat
• Fits 2013-2015 Nissan NV3500, Oil Cooler To Thermostat
• Fits 2014-2015 Nissan TITAN, Oil Cooler To Pipe
• Fits 2013 Nissan TITAN, Oil Cooler To Thermostat
• Fits 2010 Nissan TITAN, Oil Cooler Inlet
• Fits 2004-2005 Nissan TITAN, Oil Cooler Inlet
• Fits 1999-2004 Nissan Frontier, Intake Manifold To Pipe Assembly
• Fits 2000-2004 Nissan Xterra, Intake Manifold To Pipe Assembly
• Fits 1997-2000 INFINITI QX4, Pipe-2 To Pipe-4
• Fits 1996-2000 Nissan Pathfinder, Pipe-2 To Pipe-4

Quality Assurance

Gates is a recognized supplier of molded coolant and heater hose products, and the 18461 follows an OEM-style molded design for accurate routing in the listed applications. Use the part number 18461 to confirm the correct replacement before ordering.