Gates 21920 Radiator Coolant Hose - Lower or Upper

Gates 21920 Molded Coolant Hose

The Gates 21920 molded coolant hose is built for radiator cooling system service on select Acura, Chevrolet, and GMC applications. It follows OEM-quality specifications and is shaped for direct replacement in upper, lower, bypass, heater, and other coolant routing positions where a molded hose is required.

Key Features

• Molded coolant hose construction for a precise routing profile
• EPDM and plastic materials for coolant system use
• 1.19 in. (30 mm) inside diameter at both ends
• 25.4 in. (645 mm) centerline length
• No spring and no quick-connect fittings
• Direct replacement for radiator coolant hose service

Product Line Details

Gates Molded Coolant Hose products are engineered as OE-style replacement hoses for common cooling system layouts. The line is built to cover upper, lower, bypass, heater, and related coolant applications, helping reduce the need to source a hose from the original dealer channel. Part number 21920 is part of that molded hose family.

Detailed Description

This Gates 21920 radiator coolant hose is shaped for vehicles that need a molded hose with the correct bends and dimensions for the cooling circuit. It measures 25.4 inches centerline length with matching 1.19-inch end inside diameters, making it a practical replacement where the original hose follows a formed path. This part cross-references Continental 62018 for the same application. Fits 1991-1995 Acura Legend, lower; Fits 1996-1998 Acura TL, lower; Fits 1996-2004 Acura RL, lower; Fits 1992-1994 Chevrolet Astro, upper; Fits 1992-1994 GMC Safari, upper.

Common Problems This Hose Can Address

• Cracked or hardened coolant hose material
• Coolant leaks from a worn molded hose
• Poor hose routing after a failed original hose
• Replacement needs for lower radiator hose service on Acura RL, TL, and Legend
• Upper hose replacement on Chevrolet Astro and GMC Safari cooling systems

Installation Notes and Quality Assurance

Verify hose routing, end diameter, and centerline length against the removed part before installation. Confirm the vehicle position listed for your application, since this hose is used in both lower and upper coolant locations depending on the model. Gates manufactures this molded coolant hose to OEM-quality specifications for radiator hose replacement service.

Compatible With: 1991-1995 Acura Legend lower, 1996-1998 Acura TL lower, 1996-2004 Acura RL lower, 1992-1994 Chevrolet Astro upper, and 1992-1994 GMC Safari upper.