Dayco 71576 Radiator Coolant Hose - Upper

Dayco Curved Radiator Hose for Saturn Upper Cooling Service

Dayco 71576 is a curved radiator coolant hose built for upper cooling-system routing on select Saturn models. Made from EPDM rubber and formed as a dual I.D. hose, it provides the correct shape and diameter transition for Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 applications.

Key Features

• EPDM construction for coolant-hose service
• Black finish for a clean OE-style appearance
• Dual I.D. hose with 1 3/16 in. end 1 inside diameter and 1 3/8 in. end 2 inside diameter
• Upper curved radiator hose configuration
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Dayco Curved Radiator Hose line for application-specific cooling-system routing

Detailed Description

This Dayco curved radiator hose is engineered for upper radiator hose replacement where a formed hose with different end diameters is required. The EPDM rubber construction is suited for coolant exposure and temperature cycling, while the curved profile helps maintain the original hose path in the engine bay. Dayco 71576 is a direct-fit cooling hose for Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 models across the listed years. This part cross-references Gates 21947 for the same application.

Vehicle Fitment

• Fits 1993-2002 Saturn SC1, Upper
• Fits 1993-2002 Saturn SC2, Upper
• Fits 1991-2002 Saturn SL, Upper
• Fits 1991-2002 Saturn SL1, Upper
• Fits 1991-2002 Saturn SL2, Upper
• Fits 1993-2001 Saturn SW2, Upper
• Fits 1993-1999 Saturn SW1, Upper
• Fits 1991-1992 Saturn SC, Upper

Common Cooling System Issues Addressed

• Cracked or hardened upper radiator hose material
• Coolant seepage at a worn hose connection
• Incorrect hose shape after a previous replacement
• Restricted coolant flow caused by hose collapse or deformation
• Fitment problems from mismatched hose diameters

Installation Notes and Tips

Verify the hose routing, end diameters, and upper radiator location before installation. Inspect the radiator neck and engine-side connection for corrosion, residue, or sharp edges that can shorten hose life. Replace clamps if the existing hardware shows wear, and confirm the hose is seated fully before refilling and bleeding the cooling system.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R4 Class D-1 and SAE J1684 Type EC requirements for coolant-hose service. The EPDM construction and formed profile support consistent fitment on the specified Saturn applications.