HomeHVAC > Hoses and PipesDayco 88396 HVAC Heater Hose - Engine To Heater or Heater To Engine
Part #: 88396

Dayco 88396 HVAC Heater Hose - Engine To Heater or Heater To Engine

Small I.D. Heater Hose, Engine To Heater
8 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Small I.D. Heater Hose, Engine To Heater
Fitment: Ford and Mercury, Thunderbird and Cougar
Easy Returns — Return within 60 days for a full refund
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Overview of Dayco Small I.D. Heater Hose 88396

The Dayco Small I.D. Heater Hose 88396 is designed specifically for HVAC systems in select Ford and Mercury vehicles. Engineered to meet SAE specifications, this dual inside diameter hose ensures reliable heater core connections for models like the Ford Cougar and Mercury Thunderbird.

  • Constructed from durable EPDM material for heat and ozone resistance
  • Dual inside diameters: 19/32 inch and 23/32 inch for precise fitment
  • Complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards
  • Black color for standard OEM appearance
  • Trunk height dimension of 7 inches for proper routing
  • Does not include heat shield or protective sleeve

Detailed Product Description

The Dayco Small I.D. Heater Hose 88396 is a dual inside diameter hose constructed from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and weathering. This hose features two different inside diameters—19/32 inch on one end and 23/32 inch on the other—allowing it to connect heater core components with varying sizes securely. Designed without a heat shield or protective sleeve, it is intended for applications where additional protection is not required. The hose meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications, ensuring it adheres to industry standards for HVAC heater hoses. Its black color matches OEM styling, and the 7-inch trunk height dimension supports proper installation and routing within the vehicle.

About the Small I.D. Heater Hose Product Line

The Dayco Small I.D. Heater Hose product line focuses on providing HVAC hoses with smaller inside diameters tailored for specific vehicle applications. This line offers dual inside diameter hoses like part number 88396, designed to accommodate varying connection sizes within the heating system. These hoses are engineered to meet SAE standards, ensuring compatibility and durability for vehicles such as the Ford Cougar and Mercury Thunderbird.

Applications and Common Issues Addressed

  • Replacement of worn or cracked heater hoses in Ford Cougar and Mercury Thunderbird HVAC systems
  • Resolving coolant leaks caused by deteriorated or damaged heater hoses
  • Ensuring proper heater core flow with correctly sized dual inside diameter hose
  • Preventing overheating issues related to faulty heater hose connections
  • Maintaining HVAC system efficiency by restoring proper coolant circulation

Installation Notes and Tips

  • Verify hose inside diameters (19/32 inch and 23/32 inch) match vehicle heater core fittings before installation
  • Ensure clamps are securely tightened to prevent leaks but avoid over-tightening which can damage the hose
  • Inspect surrounding components for wear or damage during replacement
  • Route the hose according to OEM specifications to avoid kinks or contact with hot engine parts

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 88396 to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring reliable performance in HVAC applications. The EPDM material provides resistance to heat and ozone, contributing to the hose's durability. Warranty details should be confirmed with the original equipment manufacturer or supplier.

BrandDayco
Part Number88396
PositionSmall I.D. Heater Hose, Engine To Heater
ColorBlack
End 1 Inside Diameter19/32
End 2 Inside Diameter23/32
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height7

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1997FordThunderbird4.6LV8Engine To HeaterSmall I.D. Heater Hose
1997MercuryCougar4.6LV8Engine To HeaterSmall I.D. Heater Hose
1996FordThunderbird4.6LV8Engine To HeaterSmall I.D. Heater Hose
1996MercuryCougar4.6LV8Engine To HeaterSmall I.D. Heater Hose
1995FordThunderbird4.6LV8Engine To HeaterSmall I.D. Heater Hose
1995MercuryCougar4.6LV8Engine To HeaterSmall I.D. Heater Hose
1994FordThunderbird4.6LV8Engine To HeaterSmall I.D. Heater Hose
1994MercuryCougar4.6LV8Heater To EngineSmall 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:

B88396

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