Gates 18950 HVAC Heater Hose - Heater To Engine

Gates Molded Heater Hose for Acura RL and Legend

Gates 18950 is a molded HVAC heater hose built for tight engine bays where a factory-shaped coolant line is needed. This EPDM hose is formed to match OE routing and is suitable for coolant, water, and air service, with marine application approval noted by the manufacturer.

Key Features

• Factory-molded, OE-style heater hose for precise routing
• EPDM construction for coolant and heater circuit service
• Small inside diameter: 16 mm (0.62 in) at both ends
• Centerline length: 483 mm (19 in)
• Compatible with heater-to-engine routing in Acura RL and Acura Legend applications
• Gates 18950 cross-references Four Seasons 18950 for the same application

Product Details

The Gates Molded Heater Hose line is built for vehicles with compact engine compartments that require a shaped hose rather than a straight universal section. Part number 18950 follows the molded path needed for heater-to-engine connections and is sized with matching 16 mm ends and a 19-inch centerline length. For Acura RL and Acura Legend service, this hose supports the original routing used in the heating and cooling system.

Use Gates 18950 when replacing a worn or damaged molded heater hose on 1991-1995 Acura Legend and 1996-2004 Acura RL models. The molded profile helps maintain proper hose alignment in tighter spaces, while the EPDM material is suited for coolant transfer in the engine bay.

Common Uses

• Replacing a cracked or softened heater hose
• Restoring coolant flow between the heater circuit and engine
• Correcting hose routing in a tight engine compartment
• Addressing leaks at a molded hose section
• Servicing Acura RL or Acura Legend heater-to-engine hose routing

Installation Notes

Verify end diameter, molded shape, and centerline length before installation. Match the hose to the heater-to-engine routing shown for the vehicle and inspect adjoining fittings, clamps, and nearby coolant lines for wear. Drain coolant as needed before removing the original hose, and confirm there is no kinking or twist after installation.

Quality Assurance

Gates manufactures this molded coolant hose as an OE-style replacement for applications that require factory-shaped routing. Part number 18950 is built for the specified Acura RL and Acura Legend fitments and is also approved for marine applications according to the manufacturer.