Dayco 87713 HVAC Heater Hose - Heater To Pipe

Product Overview

Dayco 87713 is a small I.D. heater hose built for heater circuit routing where a 5/8-inch inside diameter 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 Mazda B2200 and Mazda B2000 heater-to-pipe applications, this hose is a direct fit for the listed vehicles and routing. The Dayco 87713 part number is also useful when cross-checking replacement references during service work.

Key Features

• EPDM rubber construction for heater hose service.
• 5/8-inch inside diameter at both ends.
• Single I.D. hose design for heater circuit routing.
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC standards.
• Black finish for a clean underhood appearance.

Detailed Description

This Dayco heater hose is intended for coolant transfer in heater plumbing where a small inside diameter hose is specified. The 87713 hose matches the listed heater-to-pipe fitments for 1986-1987 Mazda B2000 and 1987-1993 Mazda B2200 applications, making it a practical replacement when the original hose is cracked, softened, or leaking. The Dayco 87713 part number appears in interchange references including ACDelco 16095M and Gates 18900 for the same application.

Dayco’s Small I.D. Heater Hose line focuses on heater hose routing with standardized sizing and material selection for service replacement. For Mazda B2200 and Mazda B2000 heater hose service, this product provides the specified diameter and construction needed for the coolant path between the heater and pipe connection.

Common Uses

• Replacing a cracked heater hose.
• Restoring coolant flow through the heater circuit.
• Addressing seepage at a hose connection.
• Correcting a hose that no longer holds its shape.

Installation Notes

Verify the required 5/8-inch inside diameter before installation and confirm the heater-to-pipe routing matches the vehicle application. Inspect adjoining pipes and clamps for wear, corrosion, or deformation before installing the new hose. Cut and route the hose to match the original path so the heater circuit maintains proper clearance.

Quality Assurance

This hose is manufactured to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, supporting consistent heater hose performance in service applications.