Dayco 71448 Engine Coolant Bypass Hose - Pipe To Thermostat or Water Pump

Dayco 71448 Curved Radiator Hose Overview

The Dayco 71448 curved radiator hose is an engine coolant bypass hose built for specific Toyota cooling system applications. Made from EPDM and finished in black, it uses a single I.D. hose design with 1 1/16-inch inside diameters at both ends for a direct-fit style replacement.

Compatible with Toyota Tercel and Toyota Paseo cooling system routing, this hose supports pipe-to-thermostat and water pump connections where the original hose follows a curved path. The Dayco Curved Radiator Hose line focuses on application-specific coolant hose shapes and dimensions for service replacement.

Key Features

• Part number 71448 for Toyota cooling system service
• EPDM construction for coolant hose applications
• Black finish with curved hose routing
• 1 1/16-inch inside diameter at both ends
• Single I.D. hose design
• Built to SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Compatible With Toyota Tercel and Toyota Paseo fitments listed below

Detailed Description

Dayco 71448 is an engine coolant bypass hose intended for vehicles that require a curved radiator hose profile in the cooling circuit. Its EPDM rubber construction is suited for coolant exposure, while the SAE J20R4 Class D-1 and SAE J1684 Type EC specifications identify the hose as a service-grade cooling system component. The 1 1/16-inch end diameters help match the original hose connection points on the listed Toyota applications.

This part cross-references Gates 20556 for the same application. It is a practical replacement choice for Toyota Tercel and Toyota Paseo owners servicing pipe-to-thermostat or water pump hose routing. Dayco 71448 is also referenced by Toyota OE numbers 16262-10010, 16262-10020, and 16264-11080.

Common Problems This Hose Can Address

• Cracked or hardened coolant hose material
• Coolant seepage at a curved hose section
• Collapsed or softened hose routing near the thermostat or water pump
• Incorrect hose shape after prior repair work
• Cooling system leaks traced to an aging bypass hose

Installation Notes and Tips

Verify the hose routing, end diameters, and connection points before installation. This hose does not include a heat shield or protective sleeve, so inspect nearby components for heat exposure and abrasion before fitting. Confirm the vehicle application against the listed fitment for Toyota Tercel and Toyota Paseo models, including pipe-to-thermostat and water pump positions.

• Fits 1995-1999 Toyota Tercel, Pipe To Thermostat
• Fits 1996-1998 Toyota Paseo, Pipe To Thermostat
• Fits 1994-1995 Toyota Paseo, Water Pump
• Fits 1989-1994 Toyota Tercel, Water Pump
• Fits 1987 Toyota Tercel, Water Pump
• Fits 1988 Toyota Tercel, N/A

Quality Assurance

Dayco manufactures this hose to published SAE cooling system specifications and application-specific dimensions for the listed Toyota fitments. Part number 71448 is built as a replacement cooling hose for service work where the original curved hose profile and end sizes must match the vehicle routing.