Dayco 87926 HVAC Heater Hose - Heater Outlet

Dayco Small I.D. Heater Hose for Prius

Dayco 87926 is a small I.D. heater hose built for HVAC heater outlet service on select Toyota Prius models. It uses EPDM construction with a black finish and a protective sleeve to support heat and abrasion resistance in a demanding cooling-system environment.

Key Features

• EPDM heater hose construction for coolant transfer in HVAC applications
• Single I.D. hose with 9/16 in. inside diameter at both ends
• Black exterior with protective sleeve for added surface protection
• Outside diameter: 31/32 in. at both ends
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Dayco Small I.D. Heater Hose line for small-diameter heater circuit routing

Detailed Description

This Dayco heater hose, part number 87926, is engineered for the heater outlet connection on 2004-2009 Toyota Prius models. The EPDM hose material is suited for coolant-carrying HVAC service, while the single I.D. design and 9/16 in. end diameters support a direct replacement-style fit in the specified application. The protective sleeve adds an extra layer of surface defense where the hose is exposed to heat and nearby components. This part cross-references Duralast D87926 for the same application.

The Dayco Small I.D. Heater Hose product line focuses on compact heater hose routing where smaller inside diameters are required. For Toyota Prius heater hose replacement work, Dayco 87926 provides a specification-driven option that aligns with the listed SAE standards and fitment data.

What It Is Used For

• Replacing a worn or cracked heater outlet hose on a 2004-2009 Toyota Prius
• Restoring coolant flow through the HVAC heater circuit
• Addressing coolant seepage at a small-diameter hose connection
• Replacing a hose with heat-related surface wear or hardening
• Servicing a Prius heater hose with the correct 9/16 in. end size

Installation Notes and Tips

Verify the hose routing, end diameters, and heater outlet location before installation. Match the hose to the existing connection points on the Toyota Prius and inspect adjoining clamps, fittings, and nearby components for wear before reassembly. Confirm that the hose is seated fully and routed without kinks or contact with sharp edges.

Quality Assurance

Dayco 87926 is built to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications for heater hose service. Its EPDM construction and protective sleeve support consistent performance in the listed HVAC heater outlet application.