HomeHVAC > Hoses and PipesDayco 86105 HVAC Heater Hose - Heater Inlet, Heater Outlet or Heater To Pipe
Part #: 86105

Dayco 86105 HVAC Heater Hose - Heater Inlet, Heater Outlet or Heater To Pipe

Small I.D. Heater Hose, Heater Inlet
⚙️ 28 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Heater Inlet
🚗Fitment: Audi, Toyota, Chevrolet, and Pontiac, A6, A6 Quattro, Celica, Cavalier, Sunbird, Beretta, and Corsica
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Overview of Dayco Small I.D. Heater Hose 86105

The Dayco Small I.D. Heater Hose 86105 is designed for reliable HVAC system performance in select Audi, Chevrolet, Pontiac, and Toyota vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures efficient coolant flow and heat transfer for models like the Audi A6, Chevrolet Cavalier, and Toyota Celica.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Dual inside diameters: 5/8 inch and 23/32 inch for versatile fitment
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Trunk height of 7 inches for proper routing and clearance

Detailed Product Description

The Dayco Small I.D. Heater Hose 86105 is a dual inside diameter hose made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. This hose features two different inside diameters—5/8 inch on one end and 23/32 inch on the other—allowing it to connect various HVAC components securely. It does not include a heat shield or protective sleeve, making it suitable for applications where additional shielding is not required. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses in automotive HVAC systems.

About the Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on providing hoses with smaller inside diameters tailored for specific HVAC applications. This product line is engineered to meet precise fitment needs in vehicles requiring dual inside diameter hoses, such as the 86105 part number. These hoses are designed to maintain system integrity and durability under typical operating conditions found in passenger vehicles.

Compatible Vehicles and Common Applications

  • Audi A6 and A6 Quattro HVAC heater hose replacement
  • Chevrolet Cavalier and Corsica heater hose repair
  • Pontiac Sunbird heater hose maintenance
  • Toyota Celica heater hose replacement

Installation Notes and Tips

  • Verify hose inside diameters match the vehicle’s HVAC connections before installation
  • Ensure clamps are properly tightened to prevent leaks without damaging the hose
  • Inspect surrounding components for wear or damage during replacement
  • Route the hose to avoid contact with sharp edges or moving parts

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 86105 to meet strict SAE specifications, ensuring reliable performance in HVAC systems. While specific warranty details are not provided, Dayco products typically adhere to industry standards for durability and quality. Users should consult vehicle service manuals and Dayco documentation for additional warranty information.

BrandDayco
Part Number86105
PositionSmall I.D. Heater Hose, Heater Inlet
ColorBlack
End 1 Inside Diameter5/8
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 28 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008AudiA63.2LV6Heater InletSmall I.D. Heater Hose
2008AudiA63.2LV6Heater OutletSmall I.D. Heater Hose
2008AudiA6 Quattro3.2LV6Heater InletSmall I.D. Heater Hose
2008AudiA6 Quattro3.2LV6Heater OutletSmall I.D. Heater Hose
2007AudiA6Heater InletSmall I.D. Heater Hose
2007AudiA6Heater OutletSmall I.D. Heater Hose
2007AudiA6 Quattro3.2LV6Heater InletSmall I.D. Heater Hose
2007AudiA6 Quattro3.2LV6Heater OutletSmall I.D. Heater Hose
2006AudiA63.2LV6Heater InletSmall I.D. Heater Hose
2006AudiA63.2LV6Heater OutletSmall I.D. Heater Hose
2006AudiA6 Quattro3.2LV6Heater InletSmall I.D. Heater Hose
2006AudiA6 Quattro3.2LV6Heater OutletSmall I.D. Heater Hose
2005AudiA6 Quattro3.2LV6Heater InletSmall I.D. Heater Hose
2005AudiA6 Quattro3.2LV6Heater OutletSmall I.D. Heater Hose
2005ToyotaCelica1.8LL4Heater To PipeSmall I.D. Heater Hose
2004ToyotaCelica1.8LL4Heater To PipeSmall I.D. Heater Hose
2003ToyotaCelica1.8LL4Heater To PipeSmall I.D. Heater Hose
2001ToyotaCelica1.8LL4Heater To PipeSmall I.D. Heater Hose
2000ToyotaCelica1.8LL4Heater OutletSmall I.D. Heater Hose
1994ChevroletCavalier3.1LV6Heater OutletSmall I.D. Heater Hose
1994PontiacSunbird3.1LV6Heater OutletSmall I.D. Heater Hose
1993ChevroletCavalier3.1LV6Heater OutletSmall I.D. Heater Hose
1993ChevroletCorsica3.1LV6Heater OutletSmall I.D. Heater Hose
1993PontiacSunbird3.1LV6Heater OutletSmall I.D. Heater Hose
1992ChevroletCavalier3.1LV6Heater OutletSmall I.D. Heater Hose
1992ChevroletCorsica3.1LV6Heater OutletSmall I.D. Heater Hose
1992PontiacSunbird3.1LV6Heater OutletSmall I.D. Heater Hose
1991ChevroletCorsica3.1LV6Heater 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:

14090S

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