Dayco 87304 HVAC Heater Hose - Pipe To Pipe or Pipe To Throttle Body

Dayco Small I.D. Heater Hose for HVAC Service

Dayco 87304 is a Small I.D. Heater Hose built for HVAC heater hose routing where a 1/2 in. inside diameter is required at both ends. Made from EPDM rubber and finished in black, it is specified to SAE J20R3 Class D-1 and SAE J1684 Type EC standards for heater hose applications.

This Dayco heater hose line focuses on small inside diameter routing for tight coolant and heater connections. Part number 87304 is a direct-fit style option for select Nissan Sentra, Nissan 200SX, and Honda Prelude applications where the hose runs between pipes or from pipe to throttle body.

Key Features

• EPDM construction for heater hose service
• 1/2 in. inside diameter at both ends
• Single I.D. hose design
• Black finish for a clean OE-style appearance
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible with select Nissan Sentra, Nissan 200SX, and Honda Prelude fitments

Detailed Description

Dayco 87304 is an HVAC heater hose designed for small-diameter coolant routing in select import vehicles. The EPDM rubber construction is suited for heater hose use, while the single I.D. design and 1/2 in. end diameters support consistent connection sizing at both ends. This part number is commonly referenced for 1995-1999 Nissan Sentra pipe-to-throttle-body routing, 1995-1998 Nissan 200SX pipe-to-throttle-body routing, and 1988-1991 Honda Prelude pipe-to-pipe routing. If you are searching for a Dayco 87304 heater hose for Nissan Sentra or a Dayco 87304 heater hose for Honda Prelude, this part matches those listed applications.

This part cross-references Gates 18412 and NAPA 10412 for the same application.

What It Is Used For

• Replacing a cracked or hardened heater hose in small I.D. coolant circuits
• Restoring heater hose flow between pipes or throttle body connections
• Addressing coolant seepage at aged hose ends
• Correcting hose fitment on select Nissan Sentra, Nissan 200SX, and Honda Prelude applications
• Replacing a hose that no longer seals properly on 1/2 in. connections

Installation Notes and Tips

Verify the hose path, end diameter, and routing before installation. Confirm the vehicle application against the listed fitment: Fits 1995-1999 Nissan Sentra, pipe to throttle body; Fits 1995-1998 Nissan 200SX, pipe to throttle body; Fits 1988-1991 Honda Prelude, pipe to pipe. Inspect adjoining pipes, clamps, and coolant passages for wear or corrosion 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 heater hose performance in the specified applications.