Dayco 87701 HVAC Heater Hose

Overview

Dayco 87701 is a small I.D. heater hose built for heater circuit routing where a 5/8-inch hose size is required. It uses EPDM construction and meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications for heater hose applications.

Compatible With Chevrolet Camaro, Pontiac Firebird, Honda Prelude, and Toyota Van applications listed below, this hose supports multiple heater-to-engine and heater-to-valve routing needs. The Dayco 87701 part number is also referenced by several cross-brand numbers for the same application.

• EPDM heater hose with a black finish
• 5/8-inch inside diameter at both ends
• Single I.D. hose construction for heater circuit routing
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC standards
• Compatible with air-conditioned and non-air-conditioned applications where noted

Fitment Details

Fits 1981 Chevrolet Camaro, heater to engine.

Fits 1984 Chevrolet Camaro, heater to engine.

Fits 1984-1986 Chevrolet Camaro, heater to water pump.

Fits 1985 Chevrolet Camaro, intake manifold to heater.

Fits 1986 Chevrolet Camaro, heater to engine.

Fits 1986 Chevrolet Camaro, N/A.

Fits 1987 Chevrolet Camaro, valve to intake manifold.

Fits 1987-1995 Chevrolet Camaro, heater to valve.

Fits 1987-1995 Chevrolet Camaro, heater to pipe.

Fits 1988 Chevrolet Camaro, heater to pipe-2.

Fits 1981 Pontiac Firebird, heater to engine.

Fits 1984 Pontiac Firebird, heater to engine.

Fits 1984-1986 Pontiac Firebird, heater to water pump.

Fits 1986 Pontiac Firebird, heater to engine.

Fits 1987 Pontiac Firebird, valve to intake manifold.

Fits 1987-1992 Pontiac Firebird, heater to valve.

Fits 1987-1992 Pontiac Firebird, heater to pipe.

Fits 1988 Pontiac Firebird, heater to pipe-2.

Fits 1992 Pontiac Firebird, heater to pipe-2.

Fits 1993-1994 Pontiac Firebird, heater to engine.

Fits 1985-1987 Honda Prelude, heater to engine.

Fits 1985-1987 Toyota Van, valve to engine.

What It Is Used For

• Replacing a cracked or leaking heater hose in the coolant circuit
• Restoring heater flow between the engine, valve, pipe, or water pump
• Addressing softening, swelling, or heat-related hose deterioration
• Matching a 5/8-inch heater hose routing requirement

Installation Notes

Verify the hose routing, end diameters, and application notes before installation. Match the heater circuit path exactly, especially on Chevrolet Camaro and Pontiac Firebird applications with air conditioning or without air conditioning. Confirm the hose length and formed routing against the original part before service.

Quality Assurance

Dayco 87701 is built to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, giving buyers a standards-based heater hose option for service replacement.