Dayco 86063 HVAC Heater Hose - Heater To Pipe or Pipe To Heater

Dayco Small I.D. Heater Hose 86063

Dayco 86063 is a Small I.D. Heater Hose built for HVAC heater circuit service where a 3/4 in. inside diameter is required at both ends. Made from EPDM and finished in black, this single I.D. hose is specified to SAE J20R3 Class D-1 and SAE J1684 Type EC standards for heater hose applications.

Compatible With Ford Escort heater to pipe and Ford Tempo or Mercury Topaz pipe to heater applications, this hose supports direct replacement needs for common small-diameter heater connections. The Dayco Small I.D. Heater Hose line focuses on heater hose routing where consistent coolant flow and proper fitment are critical.

Key Features

• Part number: 86063
• EPDM construction for heater hose service
• 3/4 in. inside diameter at both ends
• Single I.D. hose design
• Black finish
• Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
• Compatible With 1998-2001 Ford Escort, heater to pipe
• Compatible With 1992-1994 Ford Tempo, pipe to heater
• Compatible With 1992-1994 Mercury Topaz, pipe to heater

Detailed Description

Dayco 86063 is a replacement HVAC heater hose for vehicles using a small inside diameter connection on both ends. Its EPDM rubber construction is suited for coolant transfer in heater circuits, while the single I.D. layout helps maintain a straightforward hose path between the heater and pipe connections. This hose is a practical choice for Ford Escort, Ford Tempo, and Mercury Topaz heater hose service where the original routing calls for a 3/4 in. hose.

This part cross-references ACDelco 16177M and Gates 19684 for the same application.

Common Issues This Hose Can Address

• Cracked or split heater hose sections
• Coolant seepage at heater hose connections
• Softened hose material from age and heat exposure
• Restricted heater coolant flow from deteriorated hose walls
• Incorrect hose size during heater hose replacement

Installation Notes and Tips

Verify the existing hose routing and measure the connection size before installation. Confirm the heater to pipe or pipe to heater layout on the vehicle, and trim only if the application requires it. Inspect clamps, pipe ends, and nearby coolant components for wear before refilling and bleeding the cooling system.

Quality Assurance

Dayco heater hoses are built to meet published SAE specifications for heater hose service, including SAE J20R3 Class D-1 and SAE J1684 Type EC. Part number 86063 is listed for confirmed fitment on 1998-2001 Ford Escort, 1992-1994 Ford Tempo, and 1992-1994 Mercury Topaz heater hose applications.