HomeHVAC > Hoses and PipesDayco 87961 HVAC Heater Hose - Heater Inlet or Heater To Connector
Part #: 87961

Dayco 87961 HVAC Heater Hose - Heater Inlet or Heater To Connector

Small I.D. Heater Hose, Heater To Connector and Heater Inlet
⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Heater To Connector and Heater Inlet
🚗Fitment: Subaru, Legacy and Outback
🔄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 87961

The Dayco Small I.D. Heater Hose 87961 is designed specifically for Subaru Legacy and Outback models. Constructed from durable EPDM material, this black heater hose ensures reliable performance in your vehicle's HVAC system.

  • Material: EPDM for heat and chemical resistance
  • Color: Black
  • Inside Diameter: 5/8 inch on both ends
  • Outside Diameter: 31/32 inch on both ends
  • Contains protective sleeve for added durability
  • Single I.D. hose type
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Trunk height: 16 1/2 inches

About the Small I.D. Heater Hose Product Line

The Dayco Small I.D. Heater Hose line focuses on providing precise fitment and reliable HVAC hose solutions for vehicles requiring smaller inside diameter hoses. This product line emphasizes quality materials and compliance with SAE standards to ensure compatibility and durability in heating and cooling systems. The 87961 hose is part of this line, offering a protective sleeve and consistent dimensions tailored for Subaru Legacy and Outback models.

Detailed Product Description

This HVAC heater hose is manufactured from EPDM, a synthetic rubber known for its resistance to heat, ozone, and automotive fluids, making it suitable for the demanding environment of a vehicle’s heating system. Both ends of the hose have a 5/8 inch inside diameter and 31/32 inch outside diameter, ensuring a secure and leak-resistant connection. The inclusion of a protective sleeve enhances the hose’s durability by shielding it from abrasion and external damage. The hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, confirming its suitability for automotive HVAC applications.

Common Uses and Problem Solving

  • Replacement of worn or cracked heater hoses in Subaru Legacy and Outback HVAC systems
  • Resolving coolant leaks within the heater core circuit
  • Preventing overheating issues caused by compromised heater hoses
  • Maintaining proper coolant flow for effective cabin heating
  • Upgrading OEM hoses with a durable EPDM construction

Installation Notes and Tips

Ensure the vehicle is cool before beginning installation to avoid burns from hot coolant. Verify hose dimensions and fitment compatibility with your Subaru Legacy or Outback model. Use appropriate clamps to secure the hose ends and check for leaks after installation. The protective sleeve should be positioned to cover areas prone to abrasion. No heat shield is included, so take care to route the hose away from excessive heat sources.

Quality Assurance

Dayco’s Small I.D. Heater Hose 87961 is manufactured to meet strict SAE specifications, ensuring consistent quality and performance. The EPDM material and protective sleeve contribute to long service life under normal operating conditions. Warranty details should be confirmed with the original equipment provider or retailer.

BrandDayco
Part Number87961
PositionSmall I.D. Heater Hose, Heater To Connector and Heater Inlet
MaterialEpdm
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter5/8
Contains Heat ShieldN
Contains Protective SleeveY
End 1 Outside Diameter31/32
End 2 Outside Diameter31/32
Hose TypeSingle i.d. hose
SAE SpecificationSae j20r3 class d-1, sae j1684 type ec
Trunk Height16 1/2

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2014SubaruLegacy3.6LH6Heater InletSmall I.D. Heater Hose
2014SubaruOutback3.6LH6Heater InletSmall I.D. Heater Hose
2013SubaruLegacy3.6LH6Heater To ConnectorSmall I.D. Heater Hose
2013SubaruOutback3.6LH6Heater To ConnectorSmall I.D. Heater Hose
2012SubaruLegacy3.6LH6Heater To ConnectorSmall I.D. Heater Hose
2012SubaruLegacy2.5LH4Heater InletSmall I.D. Heater Hose
2012SubaruOutback3.6LH6Heater InletSmall I.D. Heater Hose
2012SubaruOutback2.5LH4Heater InletSmall I.D. Heater Hose
2011SubaruLegacy3.6LH6Heater To ConnectorSmall I.D. Heater Hose
2011SubaruLegacy2.5LH4Heater InletSmall I.D. Heater Hose
2011SubaruOutback3.6LH6Heater InletSmall I.D. Heater Hose
2011SubaruOutback2.5LH4Heater InletSmall I.D. Heater Hose
2010SubaruLegacy3.6LH6Heater To ConnectorSmall I.D. Heater Hose
2010SubaruLegacy2.5LH4Heater InletSmall I.D. Heater Hose
2010SubaruOutback3.6LH6Heater InletSmall I.D. Heater Hose
2010SubaruOutback2.5LH4Heater InletSmall 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:

16623M

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