HomeHVAC > Hoses and PipesDayco 88418 HVAC Heater Hose - Heater Outlet
Part #: 88418

Dayco 88418 HVAC Heater Hose - Heater Outlet

Small I.D. Heater Hose, Heater Outlet
⚙️ 8 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Heater Outlet
🚗Fitment: Ford, Excursion, F-250 Super Duty, and F-350 Super Duty
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Dayco Small I.D. Heater Hose 88418

The Dayco Small I.D. Heater Hose 88418 is designed for reliable HVAC system performance in Ford Excursion, F-250 Super Duty, and F-350 Super Duty models. This hose ensures proper coolant flow within the heating system, maintaining cabin comfort and engine efficiency.

  • Constructed from durable EPDM material for heat and chemical resistance
  • Black color for standard OEM appearance
  • 3/4 inch inside diameter on both ends for consistent fitment
  • Single inside diameter hose type for straightforward installation
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 12 inches suitable for specified Ford models

Details on the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing hoses with precise inside diameters to ensure compatibility with specific HVAC systems. This product line emphasizes material quality and adherence to SAE standards, offering dependable performance for heating applications in heavy-duty vehicles like the Ford F-250 and F-350 Super Duty series.

Product Description and Specifications

The Dayco 88418 heater hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals. Both ends of the hose have a 3/4 inch inside diameter, making it a single I.D. hose designed to fit securely within the HVAC system of Ford Excursion and Super Duty trucks. The hose does not include a heat shield or protective sleeve, which is typical for this type of HVAC hose. Compliance with SAE J20R3 Class D-1 and SAE J1684 Type EC standards ensures the hose meets industry requirements for durability and performance.

Common Applications and Problem Solving

  • Replacement of worn or cracked heater hoses in Ford Excursion and Super Duty HVAC systems
  • Resolving coolant leaks that affect heating efficiency
  • Preventing overheating issues caused by restricted coolant flow
  • Maintaining proper cabin heating during cold weather operation
  • Ensuring HVAC system integrity after engine or cooling system repairs

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 88418, ensure the hose is routed without kinks or sharp bends to maintain coolant flow. Verify that the 3/4 inch inside diameter matches the vehicle’s fittings for a secure connection. It is recommended to inspect clamps and replace them if corroded or damaged to prevent leaks. Allow the engine to cool before removal and installation to avoid injury and hose damage.

Quality Assurance and Warranty

Dayco manufactures the 88418 heater hose to meet strict SAE specifications, ensuring consistent quality and performance. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and reliability in automotive HVAC applications.

BrandDayco
Part Number88418
PositionSmall I.D. Heater Hose, Heater Outlet
ColorBlack
End 1 Inside Diameter3/4
End 2 Inside Diameter3/4
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height12

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003FordExcursion6.8LV10Heater Outletw/Aux. Heater; Small I.D. Heater Hose
2003FordF-250 Super Duty6.8LV10Heater OutletSmall I.D. Heater Hose
2003FordF-350 Super Duty6.8LV10Heater OutletSmall I.D. Heater Hose
2002FordExcursion6.8LV10Heater Outletw/Aux. Heater; Small I.D. Heater Hose
2001FordExcursion6.8LV10Heater Outletw/Aux. Heater; Small I.D. Heater Hose
2000FordExcursion6.8LV10Heater Outletw/Aux. Heater; Small I.D. Heater Hose
1999FordF-250 Super Duty6.8LV10Heater OutletSmall I.D. Heater Hose
1999FordF-350 Super Duty6.8LV10Heater OutletSmall I.D. Heater Hose

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

C88418

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.