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Part #: 87685

Dayco 87685 HVAC Heater Hose

Small I.D. Heater Hose, Valve To Engine, Intake Manifold To Water Pump, Water Pump To Intake Manifold, and Heater To Pipe
⚙️ 19 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Valve To Engine, Intake Manifold To Water Pump, Water Pump To Intake Manifold, and Heater To Pipe
🚗Fitment: Acura, Honda, and Toyota, 4Runner, Accord, Civic, EL, and Pickup
🔄Easy Returns — Return within 60 days for a full refund
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Durable HVAC Heater Hose for Acura, Honda, and Toyota Vehicles

The Dayco Small I.D. Heater Hose 87685 is designed to provide reliable performance in the heating and cooling systems of select Acura, Honda, and Toyota models. Engineered with EPDM material, this hose ensures resistance to heat and environmental factors, making it suitable for vehicles like the Honda Accord, Toyota 4Runner, and Acura EL.

  • Constructed from durable EPDM material for heat and ozone 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 dimension of 15 inches for precise fitment
  • Compatible with Acura, Honda, and Toyota models including 4Runner, Accord, Civic, EL, and Pickup

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

The Small I.D. Heater Hose line by Dayco focuses on providing single inside diameter hoses designed specifically for HVAC applications. These hoses are manufactured to meet strict SAE standards, ensuring consistent quality and performance in heating systems. The 87685 part number is part of this line, offering a reliable replacement hose that fits a range of popular vehicle models.

Product Details and Specifications

This HVAC heater hose features a 5/8 inch inside diameter on both ends, making it a single I.D. hose suitable for various heating system connections. The EPDM construction offers excellent resistance to heat, ozone, and aging, which is critical for maintaining HVAC system integrity. The hose does not include a heat shield or protective sleeve, focusing on straightforward, durable design. Its 15-inch trunk height dimension ensures proper routing and fit within the engine compartment.

Common Applications and Issues Addressed

  • Replacement of worn or cracked heater hoses in Acura, Honda, and Toyota vehicles
  • Resolving coolant leaks within the HVAC heating system
  • Maintaining proper coolant flow to the heater core
  • Preventing overheating issues related to faulty heater hoses
  • Ensuring HVAC system efficiency and passenger comfort

Installation Notes and Tips

When installing the Dayco Small I.D. Heater Hose 87685, ensure the hose is routed without kinks or sharp bends to maintain coolant flow. Verify that the 5/8 inch inside diameter matches the vehicle’s heater core and engine connections. Use appropriate clamps to secure the hose ends firmly. Inspect surrounding components for wear or damage during replacement to avoid future leaks.

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87685 to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring compliance with industry requirements for HVAC hoses. This part is built to provide consistent performance and durability in heating system applications. Warranty details should be confirmed with the original equipment manufacturer or distributor.

BrandDayco
Part Number87685
PositionSmall I.D. Heater Hose, Valve To Engine, Intake Manifold To Water Pump, Water Pump To Intake Manifold, and Heater To Pipe
MaterialEpdm
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Contains Heat ShieldN
Contains Protective SleeveN
Hose TypeSingle i.d. hose
SAE SpecificationSae j20r3 class d-1, sae j1684 type ec
Trunk Height15

This part fits 19 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1998AcuraELValve To EngineSmall I.D. Heater Hose
1998HondaCivic1.6LL4Valve To EngineSmall I.D. Heater Hose
1997AcuraELValve To EngineSmall I.D. Heater Hose
1997HondaCivic1.6LL4Valve To EngineSmall I.D. Heater Hose
1996HondaCivic1.6LL4Valve To EngineSmall I.D. Heater Hose
1989HondaAccordWater Pump To Intake ManifoldSmall I.D. Heater Hose
1989Toyota4Runner2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1989ToyotaPickup2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1988HondaAccordIntake Manifold To Water PumpSmall I.D. Heater Hose
1988Toyota4Runner2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1988ToyotaPickup2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1987Toyota4RunnerHeater To Pipew/Aux. Heater; Small I.D. Heater Hose
1987ToyotaPickup2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1986Toyota4RunnerHeater To Pipew/Aux. Heater; Small I.D. Heater Hose
1986ToyotaPickup2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1985Toyota4RunnerHeater To Pipew/Aux. Heater; Small I.D. Heater Hose
1985ToyotaPickup2.4LL4Heater To Pipew/Aux. Heater; Small I.D. Heater Hose
1984Toyota4RunnerHeater To Pipew/Aux. Heater; Small I.D. Heater Hose
1984ToyotaPickup2.4LL4Heater To Pipew/Aux. 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:

16074M16133M

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