Dayco 87887 HVAC Heater Hose

Dayco Small I.D. Heater Hose 87887

Dayco 87887 is a Small I.D. Heater Hose built for HVAC heater circuit service where a 5/8 in. hose connection is required. Made from EPDM and finished in black, it provides a direct-fit hose solution for heater-to-valve and inlet-side coolant routing on select Dodge Ram, Toyota Sequoia, Toyota Tundra, Lexus SC300, and Ford Windstar applications.

Key Features

• EPDM construction for heater hose service
• 5/8 in. inside diameter at both ends
• Black finish for a clean OE-style appearance
• Single I.D. hose design
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Dayco Small I.D. Heater Hose line for select HVAC hose routing needs

Product Details

This Dayco heater hose is engineered for small-diameter coolant transfer in HVAC systems and is listed for multiple vehicle-specific positions, including pipe to engine inlet, heater to valve, valve to intake manifold, and auxiliary heater routing. The 87887 part number is used across several OE and aftermarket cross-references, making it a practical replacement when servicing heater hose connections on 2003-2009 Dodge Ram 2500, 2003-2007 Dodge Ram 3500, 2001-2007 Toyota Sequoia, 2000-2006 Toyota Tundra, 1992-2000 Lexus SC300, and 1995-1998 Ford Windstar.

This part cross-references ACDelco (e.g., 18178L, 18223L) for the same application.

What It Helps Address

• Cracked or hardened heater hose sections
• Coolant seepage at small I.D. hose connections
• Restricted heater flow from deteriorated hose material
• Heat-related hose wear in HVAC coolant routing
• Service replacement for vehicle-specific heater hose runs

Installation Notes

Verify the hose routing, end diameters, and position before installation. Dayco 87887 uses a 5/8 in. inside diameter at both ends and is intended for the listed heater hose locations, so match the original path and connection points on the vehicle. Inspect adjoining pipes, clamps, and fittings for wear before installing the new hose.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R3 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and performance standards for heater hose service.