Gates 21347 Radiator Coolant Hose - Lower, Lower - Pipe To Radiator or Upper

Gates 21347 Molded Coolant Hose Overview

The Gates 21347 molded coolant hose is built for radiator coolant routing in upper and lower applications where an OEM-style formed hose is required. With EPDM and plastic construction, a 1.25 in. inside diameter at both ends, and a 21.9 in. centerline length, it is shaped to match the cooling system layout on select Ford, BMW, Buick, Oldsmobile, Pontiac, and Mercury vehicles.

Compatible with applications such as 1985-1986 Ford Mustang upper radiator hose service and 1982-1988 BMW 528e lower hose replacement, this molded hose supports direct-fit cooling system repair. The Gates 21347 part number is also referenced in interchange listings for cross-checking during parts lookup.

Key Features

• Molded coolant hose for radiator, heater, bypass, and other coolant routing applications
• EPDM and plastic construction for cooling system use
• 1.25 in. inside diameter at both ends
• 21.9 in. centerline length for formed routing
• No spring and no quick-connect fittings
• OEM-quality specification focus for replacement fitment
• Gates Molded Coolant Hose line coverage for a wide range of vehicle applications

Detailed Description

Gates Molded Coolant Hose part number 21347 is a formed radiator coolant hose engineered for vehicles that require a specific molded shape rather than a universal straight hose. The hose is listed for upper and lower positions depending on application, including 1996-1998 Buick Skylark upper, 1996-1998 Oldsmobile Achieva upper, 1996-1998 Pontiac Grand Am upper, 1989-1993 Ford Mustang upper, and 1982-1988 BMW 528e lower. It also covers lower-to-radiator routing on select Buick, Oldsmobile, and Pontiac models.

The Gates molded coolant hose product line is built around application-specific replacement coverage, helping match original hose routing and dimensions without a trip to the OE dealer. If you are replacing a radiator hose on a Ford Mustang, BMW 528e, or a GM compact car listed above, Gates 21347 provides the formed profile needed for proper coolant flow path alignment.

This part cross-references Dayco 71555 and Carlson 41242 for the same application.

What It Helps Address

• Cracked or deteriorated radiator coolant hose material
• Incorrect hose shape that does not follow the factory routing
• Coolant leaks at the upper or lower hose connection points
• Replacement needs on aging Ford Mustang, BMW 528e, Buick Skylark, and similar listed vehicles
• Cooling system service where a molded hose is required instead of a universal hose

Installation Notes and Tips

• Verify the hose position before ordering: upper, lower, or lower-to-radiator routing varies by vehicle.
• Match the 1.25 in. end inside diameter and 21.9 in. centerline length to the original hose.
• Inspect clamps, necks, and adjoining coolant pipes for wear before installation.
• Drain coolant safely and refill the system according to the vehicle service procedure after replacement.
• Confirm fitment against the exact year, make, model, and position listed for Gates 21347.

Quality Assurance

Gates manufactures this molded coolant hose to OEM-quality specifications for application-specific replacement use. The part is molded for proper routing and dimensional consistency across the listed fitments, including Ford Mustang, BMW 528e, Buick Skylark, Oldsmobile Achieva, and Pontiac Grand Am applications.