Dayco 87789 | HVAC Heater Hose

Part Number
HVAC Heater Hose

Fits: 99-02 Ford F-250 Super Duty, 99-02 Ford F-350 Super Duty, 00-05 Ford Excursion, 00-02 Ford F-450 Super Duty, 00-02 Ford F-550 Super Duty

Special Price $21.00 Regular Price $24.99
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Dayco® Small I.D. Molded Heater Hose is designed to replace OEM coolant hose and provide long, reliable service. Made with the same bends and routing as the OEM assembly, this hose is designed to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provides high strength and resistance to detrimental environmental elements, coolants, and temperature variations of -40°F (-40°C) to +257°F (+125°C). In addition to meeting SAE J20R4, Class D-1 requirements, this hose is designed to meet Type EC electro-chemical requirements as specified in SAE J1684. This hose has a “quick connect” end assembled onto the hose for fast, convenient installation. With this Dayco® product you avoid the hassle of buying a separate connector and clamp and having to install it before the hose can be used. A protective sleeve is also made with this hose to protect contact areas against abrasion and heat.

BRAND: Dayco




Contains Heat ShieldN
Contains Protective SleeveY
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Hose TypeSingle I.D. Hose
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height12

w/o Aux. Heater



  • Ford: F81H-18K580-HA
  • Duralast: D87789
  • Motorcraft: KH599
  • NAPA: 11306
  • Gates: 19306
  • Ford: F81Z-18472-HB
  • ACDelco: 16331M


  • 2000-2005 Ford Excursion - Position: Heater To Auxiliary Heater Pipe-1
  • 2000-2002 Ford F-550 Super Duty - Position: Heater Outlet
  • 1999-2002 Ford F-250 Super Duty - Position: Heater Outlet
  • 2000-2002 Ford Excursion - Position: Heater Outlet
  • 2000-2002 Ford F-450 Super Duty - Position: Heater Outlet
  • 1999-2002 Ford F-350 Super Duty - Position: Heater Outlet
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