Dayco 87305 HVAC Heater Hose - Tee To Water Pump or Valve To Engine

Dayco Small I.D. Heater Hose 87305

Dayco 87305 is a Small I.D. Heater Hose built from EPDM for HVAC coolant routing where a dual inside diameter is required. It uses a black finish and meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications for heater hose applications.

This Dayco Small I.D. Heater Hose line focuses on OE-style replacement routing for tight heater connections and formed underhood layouts. Part number 87305 is listed for select Jeep and Chevrolet applications, including 1996 Chevrolet Corvette and 1987-1990 Jeep Cherokee, Comanche, Wagoneer, and Wrangler heater hose locations.

• EPDM construction for heater hose service
• Dual I.D. hose with 9/16 in. end 1 inside diameter and 5/8 in. end 2 inside diameter
• Black hose finish for a clean underhood appearance
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC requirements
• Dayco 87305 small I.D. heater hose for select HVAC hose routing

Vehicle Fitment

• Fits 1996 Chevrolet Corvette, Valve To Engine, Small I.D. Heater Hose
• Fits 1987-1990 Jeep Cherokee, Tee To Water Pump, Small I.D. Heater Hose
• Fits 1987-1990 Jeep Comanche, Tee To Water Pump, Small I.D. Heater Hose
• Fits 1987-1990 Jeep Wagoneer, Tee To Water Pump, Small I.D. Heater Hose
• Fits 1989-1990 Jeep Wrangler, N/A, Small I.D. Heater Hose

What It Helps Address

• Cracked or hardened heater hose sections
• Incorrect hose sizing at dual-diameter coolant connections
• Coolant seepage at heater hose routing points
• Restricted heater circuit flow from deteriorated hose material
• Service replacement needs for Jeep and Chevrolet HVAC hose routing

Installation Notes

Verify both inside diameters before installation: 9/16 in. on one end and 5/8 in. on the other. Match the hose routing to the original vehicle layout, especially on 1996 Chevrolet Corvette and 1987-1990 Jeep Cherokee, Comanche, Wagoneer, and Wrangler applications. Confirm clamp fit and hose length against the existing heater hose path before final assembly.

Quality Assurance

Dayco manufactures this heater hose to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications for HVAC coolant service. Part number 87305 is a direct-reference replacement for select applications and cross-references ACDelco 16195M and Gates 18413 for the same application.