Gates 51973 HVAC Heater Hose - Tee To Reservoir

Gates 51973 Molded Coolant Hose Overview

The Gates 51973 molded coolant hose is built for a specific HVAC heater hose application and follows OE-style routing for a precise fit. It is made from EPDM and plastic and uses a modular hose design with an integrated branch to match the original coolant path.

Fits 2020 Chevrolet Bolt EV, Tee To Reservoir. This Gates molded coolant hose is engineered for the 2020 Chevrolet Bolt EV cooling system layout and supports the reservoir connection with the correct molded shape and branch configuration.

Key Features

• Gates Molded Coolant Hose line for application-specific fitment
• Part number 51973 for direct identification and ordering
• EPDM and plastic construction for coolant system use
• Molded modular hose design with one branch
• OE-style layout with integrated modular components
• End sizes: 17 mm, 15 mm, and 8 mm branch connection
• Centerline length: 210 mm

Product Details

Gates 51973 is a molded HVAC heater hose designed around the original routing used in the 2020 Chevrolet Bolt EV. The modular coolant hose construction includes a branch section and is manufactured to match specific applications, with integrated OE-style features such as molded hose geometry and connector-ready design elements where required by the vehicle layout. For buyers searching for a 2020 Chevrolet Bolt EV heater hose, coolant hose branch, or molded reservoir hose, this part number 51973 provides a direct replacement reference.

The Gates molded coolant hose product line focuses on application-specific coolant routing rather than universal fitment. That makes it a practical choice when the original hose includes formed bends, branch routing, or other molded features that standard straight hose cannot duplicate. This part cross-references 42569009 for the same application.

Common Problems This Part Addresses

• Cracked or deteriorated coolant hose material
• Leaks at a molded branch or reservoir tee connection
• Incorrect hose routing after replacement with a non-molded hose
• Fitment issues caused by missing OE-style hose geometry
• Cooling system service needs on the 2020 Chevrolet Bolt EV

Installation Notes and Tips

Verify the hose routing, end diameters, and branch location against the removed part before installation. Because this is a molded modular coolant hose, correct orientation matters for the Tee To Reservoir position on the 2020 Chevrolet Bolt EV. Inspect adjoining connectors and sealing surfaces for wear or residue before installing Gates 51973.

Quality Assurance

Gates is a recognized aftermarket supplier of modular coolant hose assemblies, and this part is built to application-specific OE-style specifications for the listed vehicle fitment. Part number 51973 is manufactured for the cooling system demands of the 2020 Chevrolet Bolt EV.