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Part #: 87804

Dayco 87804 HVAC Heater Hose

Small I.D. Heater Hose, Heater Inlet, Heater Outlet, Heater To Connector, and Heater To Engine
⚙️ 35 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Heater Inlet, Heater Outlet, Heater To Connector, and Heater To Engine
🚗Fitment: Ford, Honda, Jeep, Mazda, and Toyota, Accord, Commander, CX-7, Escape, Grand Cherokee, Sienna, and Tribute
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Durable HVAC Heater Hose for Ford, Honda, Jeep, Mazda, and Toyota

The Dayco Small I.D. Heater Hose 87804 is engineered to provide reliable performance in your vehicle's heating system. Designed with precision, this hose ensures efficient coolant flow and durability for models like the Honda Accord, Jeep Grand Cherokee, and Toyota Sienna.

  • Constructed from high-quality EPDM material for heat and chemical resistance
  • Black single inside diameter hose with 5/8 inch inside diameter on both ends
  • Includes a protective sleeve for added durability and abrasion resistance
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Compatible with multiple makes and models including Ford Escape, Mazda CX-7, and Toyota Tribute

About the Dayco Small I.D. Heater Hose Product Line

The Small I.D. Heater Hose line by Dayco focuses on delivering hoses with precise inside diameters tailored for HVAC systems requiring smaller hose sizes. This product line emphasizes durability and compliance with SAE standards, ensuring compatibility and reliable operation in various vehicle heating applications. The 87804 part is a single inside diameter hose designed to meet the specific needs of compact heater hose connections.

Product Details and Specifications

The Dayco 87804 heater hose is made from EPDM, a synthetic rubber known for its excellent resistance to heat, ozone, and coolant chemicals. Both ends of the hose have a 5/8 inch inside diameter, making it suitable for HVAC systems requiring consistent hose sizing. The hose is black in color and includes a protective sleeve to guard against abrasion and wear, although it does not contain a heat shield. It complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses.

Common Applications and Issues Addressed

  • Replacement of worn or cracked heater hoses in Ford Escape and Honda Accord HVAC systems
  • Resolving coolant leaks caused by deteriorated hoses in Jeep Grand Cherokee and Mazda CX-7
  • Maintaining proper coolant flow in Toyota Sienna and Tribute heating circuits
  • Preventing hose failure due to abrasion with the included protective sleeve
  • Ensuring compliance with manufacturer specifications for HVAC hose replacements

Installation Notes and Tips

When installing the Dayco 87804 heater hose, ensure the hose is routed without sharp bends or kinks to maintain proper coolant flow. Verify that the 5/8 inch inside diameter matches the vehicle’s heater core and fitting sizes. The protective sleeve should be positioned to face areas prone to abrasion. Always inspect clamps and fittings for wear and replace if necessary to prevent leaks.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87804 to meet strict SAE specifications, ensuring durability and performance in automotive HVAC systems. While specific warranty details are not provided, Dayco products typically adhere to industry quality standards and are designed for long-term service in compatible vehicles including Ford, Honda, Jeep, Mazda, and Toyota models.

BrandDayco
Part Number87804
PositionSmall I.D. Heater Hose, Heater Inlet, Heater Outlet, Heater To Connector, and Heater To Engine
MaterialEpdm
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Contains Heat ShieldN
Contains Protective SleeveY
Hose TypeSingle i.d. hose
SAE SpecificationSae j20r3 class d-1, sae j1684 type ec
Trunk Height29

This part fits 35 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2017HondaAccord2.4LL4Heater InletSmall I.D. Heater Hose
2017HondaAccord2.4LL4Heater OutletSmall I.D. Heater Hose
2016HondaAccord2.4LL4Heater InletSmall I.D. Heater Hose
2016HondaAccord2.4LL4Heater OutletSmall I.D. Heater Hose
2015HondaAccord2.4LL4Heater InletSmall I.D. Heater Hose
2015HondaAccord2.4LL4Heater OutletSmall I.D. Heater Hose
2014HondaAccord2.4LL4Heater InletSmall I.D. Heater Hose
2014HondaAccord2.4LL4Heater OutletSmall I.D. Heater Hose
2013HondaAccord2.4LL4Heater InletSmall I.D. Heater Hose
2013HondaAccord2.4LL4Heater OutletSmall I.D. Heater Hose
2012MazdaCX-72.3LL4Heater InletSmall I.D. Heater Hose
2011MazdaCX-72.3LL4Heater InletSmall I.D. Heater Hose
2010MazdaCX-72.3LL4Heater InletSmall I.D. Heater Hose
2009MazdaCX-7Heater InletSmall I.D. Heater Hose
2008MazdaCX-7Heater InletSmall I.D. Heater Hose
2007JeepCommander4.7LV8Heater Outletw/o Rear Air; Small I.D. Heater Hose
2007JeepGrand Cherokee4.7LV8Heater Outletw/o Rear Air; Small I.D. Heater Hose
2007MazdaCX-7Heater InletSmall I.D. Heater Hose
2006JeepCommander4.7LV8Heater Outletw/o Rear Air; Small I.D. Heater Hose
2006JeepGrand Cherokee4.7LV8Heater Outletw/o Rear Air; Small I.D. Heater Hose
2005JeepGrand Cherokee4.7LV8Heater OutletSmall I.D. Heater Hose
2004FordEscape3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2004MazdaTribute3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2003FordEscape3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2003MazdaTribute3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2003ToyotaSiennaHeater To EngineWithout auxiliary heater; Small I.D. Heater Hose
2002FordEscape3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2002MazdaTribute3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2002ToyotaSiennaHeater To EngineWithout auxiliary heater; Small I.D. Heater Hose
2001FordEscape3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2001MazdaTribute3.0LV6Heater To ConnectorDriver Side; Small I.D. Heater Hose
2001ToyotaSiennaHeater To EngineWithout auxiliary heater; Small I.D. Heater Hose
2000ToyotaSiennaHeater To EngineWithout auxiliary heater; Small I.D. Heater Hose
1999ToyotaSiennaHeater To EngineWithout auxiliary heater; Small I.D. Heater Hose
1998ToyotaSiennaHeater To EngineWithout auxiliary heater; Small 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:

18179L18358L

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