Dayco 87736 HVAC Heater Hose - Heater Outlet

Dayco Small I.D. Heater Hose 87736

Dayco 87736 is a Small I.D. Heater Hose built for HVAC heater outlet service on select Ford and Mazda applications. It uses EPDM construction with a black finish, a protective sleeve, and a single I.D. hose design for routing coolant through the heater circuit.

This heater hose is sized with 19/32-inch inside diameter at both ends and follows SAE J20R3 Class D-1 and SAE J1684 Type EC specifications. The Dayco Small I.D. Heater Hose line focuses on replacement hoses for tight-diameter heater connections where consistent fit and routing matter.

• EPDM hose material for heater circuit use
• Black exterior for OE-style appearance
• 19/32-inch inside diameter at both ends
• Protective sleeve included
• Single I.D. hose construction
• Built to SAE J20R3 Class D-1 and SAE J1684 Type EC standards

Vehicle Fitment

• Fits 1995-2000 Ford Explorer, Heater Outlet
• Fits 1995-2000 Ford Ranger, Heater Outlet
• Fits 1995-2000 Mazda B4000, Heater Outlet

Use Dayco 87736 when replacing a small-diameter heater outlet hose on 1995-2000 Ford Explorer, 1995-2000 Ford Ranger, or 1995-2000 Mazda B4000 applications. This part cross-references Ford (e.g., F5TZ-18472-C, F57A-18472-DD) for the same application.

Common Repair Uses

• Cracked or hardened heater hose at the outlet connection
• Coolant seepage from a worn small I.D. hose
• Restricted heater flow caused by hose deterioration
• Replacement for a damaged hose with incorrect routing or fit
• Service repair on Ford Explorer, Ford Ranger, and Mazda B4000 heater circuits

Installation Notes

Verify the 19/32-inch inside diameter at both ends before installation and confirm routing at the heater outlet. Inspect adjacent clamps, fittings, and nearby hoses for wear so the replacement hose seats correctly and maintains proper coolant flow.

Quality Assurance

Dayco manufactures this hose to meet SAE J20R3 Class D-1 and SAE J1684 Type EC requirements, supporting consistent material and dimensional standards for heater hose replacement.