HomeHVAC > Hoses and PipesDayco 87626 HVAC Heater Hose
Part #: 87626

Dayco 87626 HVAC Heater Hose

Small I.D. Heater Hose, Pipe To Thermostat
⚙️ 25 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$24.78Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Small I.D. Heater Hose, Pipe To Thermostat
🚗Fitment: Ford, Toyota, Nissan, Lincoln, and Mercury, Focus, Sienna, Sentra, NX, Taurus, Continental, Thunderbird, Sable, and Cougar
🔄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 87626

The Dayco Small I.D. Heater Hose 87626 is designed to provide reliable performance in HVAC systems for select Ford, Lincoln, Mercury, Nissan, and Toyota vehicles. Engineered with durable EPDM material, this dual inside diameter hose ensures proper fit and function in heating applications.

  • Constructed from EPDM for heat and ozone resistance
  • Dual inside diameters: 5/8 inch and 3/4 inch ends
  • Meets SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Black color for standard OEM appearance
  • Trunk height of 10 inches for precise fitment

Detailed Product Description

The Dayco Small I.D. Heater Hose part number 87626 is a dual inside diameter hose designed specifically for HVAC heater systems. Made from EPDM, it offers excellent resistance to heat, coolant, and environmental factors, making it suitable for long-term use in vehicle heating circuits. The hose features a 5/8 inch inside diameter on one end and a 3/4 inch inside diameter on the other, allowing it to connect different sized fittings securely. This hose complies with SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for heater hoses. Its black color matches OEM specifications, and the 10-inch trunk height supports proper routing within the engine bay.

The Small I.D. Heater Hose product line from Dayco focuses on providing hoses with smaller inside diameters tailored for specific HVAC applications. This line is engineered to meet strict SAE standards, offering reliable performance in heating systems for various vehicle makes and models. The 87626 hose is part of this line, designed to fit multiple Ford, Lincoln, Mercury, Nissan, and Toyota vehicles, including models such as the Ford Focus, Lincoln Continental, Mercury Cougar, Nissan Sentra, and Toyota Sienna.

Compatible Vehicles and Applications

  • Ford Focus, Taurus, Thunderbird
  • Lincoln Continental
  • Mercury Cougar, Sable
  • Nissan Sentra, NX
  • Toyota Sienna

Common Issues Addressed by Dayco 87626 Heater Hose

  • Replacement of cracked or leaking heater hoses
  • Resolving coolant leaks in HVAC heater circuits
  • Upgrading worn or brittle hoses to EPDM material
  • Ensuring proper fitment with dual inside diameter connections
  • Maintaining efficient heating system performance

Installation Notes and Tips

  • Verify hose diameters (5/8 inch and 3/4 inch) match vehicle fittings before installation
  • Inspect surrounding components for wear or damage during replacement
  • Ensure hose routing avoids sharp bends or contact with hot engine parts
  • Use appropriate clamps to secure hose ends firmly
  • Flush cooling system if necessary to remove debris before installing new hose

Quality Assurance and Warranty

Dayco manufactures the Small I.D. Heater Hose 87626 to meet SAE J20R3 Class D-1 and SAE J1684 Type EC standards, ensuring durability and performance in automotive HVAC systems. The EPDM material provides resistance to heat, ozone, and coolant exposure. While specific warranty details are not provided, Dayco products typically adhere to industry quality standards and are backed by the brand's commitment to reliable automotive components.

BrandDayco
Part Number87626
PositionSmall I.D. Heater Hose, Pipe To Thermostat
ColorBlack
End 1 Inside Diameter5/8
End 2 Inside Diameter3/4
Hose TypeDual I.D. Hose
MaterialEPDM
SAE SpecificationSAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height10

This part fits 25 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004FordFocus2.0LL4Pipe To ThermostatSmall I.D. Heater Hose
2003ToyotaSiennaHeater To Valvew/A.C., w/o Aux. Heater; Small I.D. Heater Hose
2002ToyotaSiennaHeater To Valvew/A.C., w/o Aux. Heater; Small I.D. Heater Hose
2001ToyotaSiennaHeater To Valvew/A.C., w/o Aux. Heater; Small I.D. Heater Hose
2000ToyotaSiennaHeater To Valvew/A.C., w/o Aux. Heater; Small I.D. Heater Hose
1999ToyotaSiennaHeater To Valvew/A.C., w/o Aux. Heater; Small I.D. Heater Hose
1998ToyotaSiennaHeater To Valvew/A.C., w/o Aux. Heater; Small I.D. Heater Hose
1994NissanSentra1.6LL4Valve To EngineSmall I.D. Heater Hose
1993NissanNX1.6LL4Valve To EngineSmall I.D. Heater Hose
1993NissanSentra1.6LL4Valve To EngineSmall I.D. Heater Hose
1992NissanNX1.6LL4Valve To EngineSmall I.D. Heater Hose
1992NissanSentra1.6LL4Valve To EngineSmall I.D. Heater Hose
1991NissanNX1.6LL4Valve To EngineSmall I.D. Heater Hose
1991NissanSentra1.6LL4Valve To EngineSmall I.D. Heater Hose
1990FordTaurus3.8LV6Thermostat To HeaterFits models with Auto Temp. Control.; Small I.D. Heater Hose
1989FordTaurus3.8LV6Valve To EngineSmall I.D. Heater Hose
1989LincolnContinentalValve To EngineSmall I.D. Heater Hose
1988FordTaurus3.8LV6Valve To EngineSmall I.D. Heater Hose
1988FordThunderbird2.3LL4Heater To PipeSmall I.D. Heater Hose
1988LincolnContinentalValve To EngineSmall I.D. Heater Hose
1988MercurySable3.8LV6Valve To EngineSmall I.D. Heater Hose
1987FordThunderbird2.3LL4Heater To PipeSmall I.D. Heater Hose
1986MercuryCougar2.3LL4Heater To PipeSmall I.D. Heater Hose
1985FordThunderbird2.3LL4Heater To PipeSmall I.D. Heater Hose
1985MercuryCougar2.3LL4Heater To PipeSmall 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:

14084S

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