HomeHVAC > Hoses and PipesDayco 86122 HVAC Heater Hose - Connector To Pipe or Valve To Engine
Part #: 86122

Dayco 86122 HVAC Heater Hose - Connector To Pipe or Valve To Engine

Small I.D. Heater Hose, Connector To Pipe
27 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, Connector To Pipe
Fitment: Toyota, Scion, Honda, and Acura, 86, FR-S, CR-V, CL, and Accord
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Dayco Small I.D. Heater Hose 86122

The Dayco Small I.D. Heater Hose 86122 is designed for reliable HVAC system performance in select Acura, Honda, Scion, and Toyota vehicles. 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 5/8 inch ID on both ends
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height of 13 1/2 inches for precise fitment
  • Compatible with Acura, Honda, Scion, and Toyota models including Accord, CR-V, CL, FR-S, and 86

Dayco Small I.D. Heater Hose Product Line Details

The Small I.D. Heater Hose line by Dayco focuses on single inside diameter hoses designed specifically for HVAC applications. This product line emphasizes compliance with SAE standards to ensure durability and proper fitment in vehicle heating systems. The 86122 hose is part of this line, providing a reliable replacement option for small diameter heater hoses in various Japanese domestic market vehicles.

Product Description and Specifications

The Dayco 86122 heater hose is manufactured from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and automotive fluids. Both ends of the hose have a 5/8 inch inside diameter, making it suitable for HVAC heater core connections requiring this size. The hose does not include a heat shield or protective sleeve, which is typical for this type of single I.D. hose. It meets SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it adheres to industry requirements for heater hoses. The trunk height of 13 1/2 inches allows for proper routing within the engine bay of compatible vehicles.

Applications and Common Issues Addressed

  • Replacement of worn or cracked heater hoses in Acura, Honda, Scion, and Toyota vehicles
  • Resolving coolant leaks in the HVAC heater core circuit
  • Preventing overheating caused by compromised heater hose integrity
  • Maintaining proper cabin heating performance
  • Addressing hose swelling or softening due to age or chemical exposure

Installation Notes and Tips

  • Verify hose length and diameter compatibility with your specific vehicle model before installation
  • Ensure all clamps are securely tightened to prevent leaks
  • Inspect surrounding components for wear or damage during replacement
  • Flush the cooling system if contamination or debris is present
  • Use proper safety equipment and allow the engine to cool before servicing

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 86122 to meet stringent SAE specifications, ensuring durability and performance in HVAC applications. While specific warranty details are not provided, Dayco products typically adhere to industry standards for quality and reliability. It is recommended to consult the product packaging or manufacturer for warranty information.

BrandDayco
Part Number86122
PositionSmall I.D. Heater Hose, Connector To Pipe
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Hose TypeSingle I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height13 1/2

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2026ToyotaGR86Connector To PipeSmall I.D. Heater Hose
2025ToyotaGR86Connector To PipeSmall I.D. Heater Hose
2024ToyotaGR86Connector To PipeSmall I.D. Heater Hose
2023ToyotaGR86Connector To PipeSmall I.D. Heater Hose
2022ToyotaGR86Connector To PipeSmall I.D. Heater Hose
2020Toyota86Connector To PipeSmall I.D. Heater Hose
2019Toyota86Connector To PipeSmall I.D. Heater Hose
2018Toyota86Connector To PipeSmall I.D. Heater Hose
2017Toyota86Connector To PipeSmall I.D. Heater Hose
2016ScionFR-SConnector To PipeSmall I.D. Heater Hose
2015ScionFR-SConnector To PipeSmall I.D. Heater Hose
2014ScionFR-SConnector To PipeSmall I.D. Heater Hose
2013ScionFR-SConnector To PipeSmall I.D. Heater Hose
2006HondaCR-VValve To EngineSmall I.D. Heater Hose
2005HondaCR-VValve To EngineSmall I.D. Heater Hose
2004HondaCR-VValve To EngineSmall I.D. Heater Hose
2003HondaCR-VValve To EngineSmall I.D. Heater Hose
2002HondaCR-VValve To EngineSmall I.D. Heater Hose
1997AcuraCL2.2LL4Valve To EngineSmall I.D. Heater Hose
1997HondaAccord2.2LL4Valve To EngineSmall I.D. Heater Hose
1996HondaAccord2.2LL4Valve To EngineSmall I.D. Heater Hose
1995HondaAccord2.2LL4Valve To EngineSmall I.D. Heater Hose
1994HondaAccordValve To EngineSmall I.D. Heater Hose
1993HondaAccordValve To EngineSmall I.D. Heater Hose
1992HondaAccordValve To EngineSmall I.D. Heater Hose
1991HondaAccordValve To EngineSmall I.D. Heater Hose
1990HondaAccordValve 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:

14407S16077M

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