Dayco 71298 Radiator Coolant Hose - Lower

Dayco Curved Radiator Hose 71298

Dayco 71298 is a curved radiator coolant hose built for lower cooling-system routing on select Hyundai and Mitsubishi applications. Made from EPDM and formed as a single I.D. hose, it provides the correct 1 3/8-inch inside diameter at both ends for a direct replacement-style fit.

Compatible with 1986-1987 Hyundai Excel lower radiator hose applications and 1987 Mitsubishi Precis lower radiator hose applications, this hose supports coolant transfer through the engine cooling circuit. The Dayco Curved Radiator Hose line is focused on application-specific hose shapes and dimensions for vehicles that require a formed replacement hose rather than a universal cut-to-fit part.

Key Features

• EPDM construction for coolant-system service
• Curved radiator hose profile for lower hose routing
• 1 3/8-inch inside diameter at both ends
• Single I.D. hose design
• Black finish
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications

Detailed Description

Dayco 71298 is a formed radiator coolant hose engineered for lower radiator connections where a curved shape is required. The EPDM rubber construction is suited for coolant exposure and temperature cycling, while the matched end diameters help maintain proper hose-to-fitting alignment. This part cross-references Hyundai 25412-21000 and Gates 21174 for the same application. Search terms such as 1986 Hyundai Excel lower radiator hose, 1987 Hyundai Excel cooling hose, and 1987 Mitsubishi Precis lower coolant hose all point to this application-specific replacement.

What This Hose Helps Address

• Cracked or aged lower radiator hose material
• Coolant leaks at the hose connection points
• Incorrect hose shape on curved lower routing
• Softening, swelling, or deterioration from heat and coolant exposure
• Restricted cooling-system flow caused by a failing hose

Installation Notes and Tips

Verify the hose routing, end diameters, and lower-position fitment before installation. Inspect the radiator neck and engine-side connection for corrosion, debris, or sharp edges that could affect sealing. Confirm the hose is seated fully on both ends and check clamp condition during service. Fits 1986-1987 Hyundai Excel, lower. Fits 1987 Mitsubishi Precis, lower.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and dimensional standards for cooling-system service.