Gates 18333 HVAC Heater Hose - Reservoir To Pipe

Gates 18333 Molded Heater Hose Overview

The Gates 18333 molded heater hose is an OEM-style coolant hose built for tight engine bays and factory routing. It is shaped to match the reservoir-to-pipe path on select Chevrolet and GMC applications, including the Chevrolet Equinox, GMC Terrain, and Chevrolet Captiva Sport.

Made from EPDM, this molded hose is suitable for coolant, water, and air service, and Gates also approves it for marine applications. The molded construction helps maintain the correct routing in compact HVAC and cooling system layouts.

Key Features

• Gates Molded Heater Hose, part number 18333
• Factory-molded, OE-style shape for tighter engine compartments
• EPDM construction for coolant, water, and air applications
• Approved for marine applications
• End sizes: 8 mm and 10 mm inside diameter
• Centerline length: 693 mm (27.3 in)
• Compatible with reservoir-to-pipe routing on select vehicles

Detailed Description

Gates 18333 is a molded HVAC heater hose designed around the packaging demands of modern engine compartments. Its factory-formed shape supports the reservoir-to-pipe route used on 2010-2017 Chevrolet Equinox, 2010-2017 GMC Terrain, and 2015 Chevrolet Captiva Sport applications. If you are replacing a worn or damaged molded heater hose on these vehicles, this OE-style replacement follows the original routing more closely than a universal straight hose.

This part cross-references Continental 64592 for the same application. The Gates 18333 part number is also useful when searching for a molded heater hose replacement by exact OE-style reference.

Common Problems This Hose Can Address

• Coolant leakage from a cracked or aged molded hose
• Improper hose routing in a tight engine compartment
• Softening, swelling, or deterioration of EPDM hose material
• Loss of heater circuit flow caused by a damaged hose section
• Fitment issues when a straight hose cannot follow the original path

Installation Notes

Verify the reservoir-to-pipe routing before installation and match the end diameters and centerline length to the original hose. Inspect adjoining pipes, clamps, and connection points for wear or corrosion so the replacement hose seals correctly. For best results, confirm vehicle application by year, make, model, and position before ordering Gates 18333.

Quality Assurance

Gates manufactures this molded heater hose as an OE-style replacement for specific vehicle applications. The EPDM construction and factory-molded shape are intended to match the routing and service requirements of the original hose design.