Gates 51393 HVAC Heater Hose - Heater Outlet

Gates 51393 Molded Heater Hose Overview

The Gates 51393 molded coolant hose is built for heater outlet service on select GM full-size SUVs. It follows application-specific OE-style routing and integrates a female quick connector for a direct-fit replacement on the listed vehicles.

Gates Molded Coolant Hose products are application-matched to specific vehicles and incorporate essential OE-style components where required. This line is used where molded shape, connector style, and hose dimensions must align with the factory cooling system layout.

Key Features

• Brand: Gates Molded Coolant Hose
• Part number: 51393
• HVAC heater hose for heater outlet routing
• Molded EPDM hose construction with plastic and steel components
• Female quick connector integrated into the modular hose design
• End sizes: 15 mm (0.59 in) and 19 mm (0.75 in)
• Centerline length: 782 mm (30.79 in)
• Modular, molded design for OE-style fitment

Detailed Description

Gates 51393 is a molded HVAC heater hose engineered for select 2015-2020 Cadillac Escalade, Cadillac Escalade ESV, Chevrolet Tahoe, GMC Yukon, and GMC Yukon XL models at the heater outlet. The molded shape helps match factory hose routing, while the female quick connector supports the original connection style used in these applications. For buyers searching for a 2015-2020 Cadillac Escalade heater outlet hose or a 2015-2020 Chevrolet Tahoe heater hose replacement, this part number provides a direct application match.

This Gates molded coolant hose uses EPDM, plastic, and steel materials and is part of the Gates modular coolant hose line, which is built around vehicle-specific configurations rather than universal sizing. Part number 51393 also cross-references 27353X and 23492579 for the same application.

Common Problems This Hose Can Address

• Cracked or leaking heater hose at the outlet connection
• Damaged quick connector at the factory hose assembly
• Incorrect hose routing after cooling system service
• Restricted coolant flow caused by a deteriorated molded hose
• Fitment issues from using a non-molded replacement hose

Installation Notes and Tips

Verify the heater outlet location and connector style before installation. Compare the original hose routing, end diameters, and centerline length to the replacement part number 51393 to confirm the correct application for your Cadillac Escalade, Chevrolet Tahoe, GMC Yukon, or GMC Yukon XL. Inspect mating surfaces and adjacent cooling system components for wear or residue before installing the new hose.

Quality Assurance

Gates is a recognized aftermarket supplier in modular coolant hose assemblies, and this hose is manufactured to application-specific OE-style requirements for the listed vehicles. The molded construction and integrated connector are intended to match the factory cooling system layout on the confirmed fitments.