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Part #: 86806

Dayco 86806 HVAC Heater Hose

Small I.D. Heater Hose, Throttle Body To Engine
⚙️ 52 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Throttle Body To Engine
🚗Fitment: Chevrolet, Nissan, Subaru, Mazda, Acura, and Honda, Camaro, Maxima, Legacy, B2200, Legend, Integra, Accord, Civic, and Prelude
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Overview of Dayco Small I.D. Heater Hose 86806

The Dayco Small I.D. Heater Hose 86806 is designed for reliable HVAC system performance in various vehicle models. Engineered with durable EPDM material, this hose ensures consistent heat transfer and resistance to automotive fluids.

  • Constructed from high-quality EPDM for heat and chemical resistance
  • Black single inside diameter hose with 5/16 inch ID on both ends
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Compatible with multiple makes including Acura, Chevrolet, Honda, Mazda, Nissan, and Subaru
  • Designed without heat shield or protective sleeve for straightforward installation

Detailed Product Description

The Dayco Small I.D. Heater Hose 86806 is a single inside diameter hose measuring 5/16 inch on both ends, constructed from EPDM (ethylene propylene diene monomer) rubber. This material offers excellent resistance to heat, ozone, and automotive fluids, making it suitable for HVAC heater core connections. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for durability and performance. Its black color and 7-inch trunk height provide a clean, functional fit within the engine bay.

The Small I.D. Heater Hose product line from Dayco focuses on delivering precise fitment and reliable HVAC hose solutions for a range of vehicles. This line is engineered to maintain heater core efficiency and prevent leaks or hose degradation over time, supporting consistent cabin heating performance.

Compatible Vehicles and Applications

  • Compatible with Acura models such as Legend and Integra
  • Fits Chevrolet Camaro and B2200 models
  • Suitable for Honda Accord, Civic, and Prelude
  • Works with Mazda B2200 and Nissan Maxima
  • Also compatible with Subaru Legacy

Common Issues Addressed by Dayco 86806 Heater Hose

  • Prevents coolant leaks in HVAC heater core connections
  • Resists cracking and hardening caused by heat exposure
  • Maintains proper coolant flow for effective cabin heating
  • Replaces worn or damaged OEM heater hoses
  • Helps avoid HVAC system overheating and related malfunctions

Installation Notes and Tips

  • Ensure both hose ends measure 5/16 inch inside diameter for proper fit
  • Inspect hose routing to avoid contact with sharp edges or moving parts
  • Use appropriate clamps to secure hose connections firmly
  • Check for leaks after installation and during initial engine operation
  • Replace hoses in pairs when possible to maintain system balance

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 86806 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 Number86806
PositionSmall I.D. Heater Hose, Throttle Body To Engine
ColorBlack
End 1 Inside Diameter5/16
End 2 Inside Diameter5/16
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height7

This part fits 52 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
1995ChevroletCamaro3.4LV6Throttle Body To EngineSmall I.D. Heater Hose
1994ChevroletCamaro3.4LV6Throttle Body To EngineSmall I.D. Heater Hose
1994NissanMaximaPipe To Intake ManifoldSmall I.D. Heater Hose
1994SubaruLegacyReservoir To PipeSmall I.D. Heater Hose
1993ChevroletCamaro3.4LV6Throttle Body To EngineSmall I.D. Heater Hose
1993MazdaB2200N/ASmall I.D. Heater Hose
1993NissanMaximaPipe To Intake ManifoldSmall I.D. Heater Hose
1993SubaruLegacyReservoir To PipeSmall I.D. Heater Hose
1992MazdaB2200N/ASmall I.D. Heater Hose
1992NissanMaximaPipe To Intake ManifoldSmall I.D. Heater Hose
1992SubaruLegacyReservoir To PipeSmall I.D. Heater Hose
1991MazdaB2200N/ASmall I.D. Heater Hose
1991SubaruLegacyReservoir To PipeSmall I.D. Heater Hose
1990AcuraLegendThrottle Body To PipeSmall I.D. Heater Hose
1990MazdaB2200N/ASmall I.D. Heater Hose
1989AcuraIntegraThrottle Body To PipeSmall I.D. Heater Hose
1989AcuraIntegraValve To Intake ManifoldSmall I.D. Heater Hose
1989AcuraIntegraOil Cooler To EngineSmall I.D. Heater Hose
1989AcuraLegendPipe To TeeSmall I.D. Heater Hose
1989AcuraLegendThrottle Body To PipeSmall I.D. Heater Hose
1989MazdaB2200N/ASmall I.D. Heater Hose
1988AcuraIntegraThrottle Body To PipeSmall I.D. Heater Hose
1988AcuraIntegraValve To Intake ManifoldSmall I.D. Heater Hose
1988AcuraIntegraOil Cooler To EngineSmall I.D. Heater Hose
1988AcuraLegendPipe To TeeSmall I.D. Heater Hose
1988AcuraLegendThrottle Body To PipeSmall I.D. Heater Hose
1988MazdaB2200N/ASmall I.D. Heater Hose
1987AcuraIntegraThrottle Body To Intake ManifoldSmall I.D. Heater Hose
1987AcuraIntegraThrottle Body To PipeSmall I.D. Heater Hose
1987AcuraIntegraValve To Intake ManifoldSmall I.D. Heater Hose
1987AcuraIntegraOil Cooler To EngineSmall I.D. Heater Hose
1987AcuraLegend2.5LV6Pipe To TeeSmall I.D. Heater Hose
1987AcuraLegend2.5LV6Throttle Body To PipeSmall I.D. Heater Hose
1987AcuraLegend2.7LV6Pipe To TeeSmall I.D. Heater Hose
1987AcuraLegend2.7LV6Throttle Body To PipeSmall I.D. Heater Hose
1987HondaAccordThrottle Body To Intake ManifoldSmall I.D. Heater Hose
1987HondaCivicOil Cooler To EngineSmall I.D. Heater Hose
1987HondaCivic1.5LL4Oil Cooler To EngineSmall I.D. Heater Hose
1987HondaPrelude2.0LL4Throttle Body To Intake ManifoldSmall I.D. Heater Hose
1987MazdaB2200N/ASmall I.D. Heater Hose
1986AcuraIntegraThrottle Body To Intake ManifoldSmall I.D. Heater Hose
1986AcuraIntegraThrottle Body To PipeSmall I.D. Heater Hose
1986AcuraIntegraValve To Intake ManifoldSmall I.D. Heater Hose
1986AcuraIntegraOil Cooler To EngineSmall I.D. Heater Hose
1986AcuraLegendPipe To TeeSmall I.D. Heater Hose
1986AcuraLegendThrottle Body To PipeSmall I.D. Heater Hose
1986HondaAccordThrottle Body To Intake ManifoldSmall I.D. Heater Hose
1986HondaCivic1.5LL4Oil Cooler To EngineSmall I.D. Heater Hose
1986HondaCivicOil Cooler To EngineSmall I.D. Heater Hose
1986HondaPrelude2.0LL4Throttle Body To Intake ManifoldSmall I.D. Heater Hose
1985HondaCivicCRX Si1.5LL4Oil Cooler To EngineSmall I.D. Heater Hose
1985HondaPrelude2.0LL4Throttle Body To Intake ManifoldSmall 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:

14023S

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