Gates 51619 HVAC Heater Hose - Heater Inlet or Heater To Engine

Gates 51619 Molded Heater Hose

The Gates 51619 molded coolant hose is built for specific HVAC heater hose applications on Chevrolet Cruze models. It follows OE-style routing and integrates a female quick connector for a direct-fit replacement where the original hose assembly uses molded construction and factory-style connection points.

Key Features

• Gates Molded Coolant Hose / HVAC Heater Hose application
• OE-style molded design for application-specific routing
• Constructed from EPDM, plastic, and steel
• Includes one female quick connector
• Centerline length: 20 in. (508 mm)
• End inside diameters: 0.75 in. (19 mm) and 0.8 in. (20 mm)
• No spring included
• Compatible with Chevrolet Cruze heater hose service needs

Product Details

Gates molded coolant hose assemblies are made for specific vehicle applications and mirror the layout of the original hose design, including integrated OE-style components such as quick-connect fittings. Part number 51619 is a molded HVAC heater hose assembly for the heater inlet or heater-to-engine routing used on 2011-2015 Chevrolet Cruze, plus 2016 Chevrolet Cruze Limited heater inlet and 2016 Chevrolet Cruze NG heater inlet with old body style. This part cross-references Dayco 87993 for the same application.

Common Repair Uses

• Replacing a leaking or cracked heater hose on a Chevrolet Cruze
• Restoring coolant flow between the heater circuit and engine
• Addressing brittle molded hose sections near factory connection points
• Repairing a damaged female quick connector at the heater hose assembly
• Correcting coolant seepage at the heater inlet hose route

Installation Notes and Tips

Verify the hose routing, connector style, and end diameters before installation. This molded assembly is specific to the listed Chevrolet Cruze applications, so compare the original hose shape and connection points to confirm the correct heater inlet or heater-to-engine configuration. Inspect mating fittings and sealing surfaces for wear or contamination before connecting the hose.

Quality Assurance

Gates is a recognized aftermarket supplier of modular coolant hose assemblies, and this hose is manufactured to application-specific OE-style requirements for the listed vehicles. Part number 51619 is built to match the original hose layout and integrated connector design used in the confirmed fitments.