Dayco
Small I.D. Heater Hose

Dayco 87796 HVAC Heater Hose - Pipe To Heater

Brand Dayco 87796
Position Pipe To Heater
Color Black
End 1 Inside Diameter 5/8
End 2 Inside Diameter 23/32
Hose Type Dual I.D. Hose
Material EPDM
SAE Specification SAE J20R3 Class D-1, SAE J1684 Type EC
Trunk Height 19 5/32
Product line Small I.D. Heater Hose
Fits Ford · 5 vehicles

EPDM construction. Resists heat and coolant exposure in demanding HVAC service.

Dual I.D. hose. Provides two inside diameters in one heater hose design.

SAE J20R3 Class D-1. Built to meet recognized hose performance standards.

Cross-references ACDelco 18173L, CARQUEST 19155 and Duralast E87796 for the same application. See all 11.

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Dayco Small I.D. Heater Hose for Ford Focus

Dayco 87796 is a Small I.D. Heater Hose built for HVAC heater hose service where a dual inside-diameter connection is required. Made from EPDM and finished in black, it is specified for 2000-2004 Ford Focus pipe-to-heater applications and matches the dimensional and material requirements listed for this part.

Key Features

  • EPDM construction for heater hose service
  • Black finish for a clean OE-style appearance
  • Dual I.D. hose design with 5/8 in. end 1 inside diameter and 23/32 in. end 2 inside diameter
  • Built to SAE J20R3 Class D-1 and SAE J1684 Type EC specifications
  • Compatible with 2000-2004 Ford Focus pipe to heater routing
  • Dayco 87796 cross-references ACDelco 18173L and Motorcraft KH149 for the same application

Product Details

This Dayco Small I.D. Heater Hose is engineered for HVAC hose replacement where the heater circuit requires a dual I.D. connection between the pipe and heater. The EPDM rubber construction is suited to coolant transfer service, while the SAE J20R3 Class D-1 and SAE J1684 Type EC specifications provide the sizing and performance references used in heater hose applications. If you are replacing a worn heater hose on a Ford Focus, Dayco 87796 offers the correct fitment profile for 2000-2004 Ford Focus pipe-to-heater use.

What It Helps Fix

  • Coolant leaks at a deteriorated heater hose
  • Cracking or hardening from age and heat exposure
  • Incorrect hose sizing at the pipe-to-heater connection
  • Restricted heater coolant flow caused by a damaged hose
  • Loss of cabin heat related to a failing heater hose

Installation Notes and Tips

Verify the end diameters before installation: 5/8 in. on one end and 23/32 in. on the other. Confirm the routing matches the pipe-to-heater position on the vehicle and inspect adjoining coolant components for wear before reassembly. This hose does not include a heat shield or protective sleeve.

Quality Assurance

Dayco manufactures this heater hose to meet listed SAE specifications for HVAC hose service. Part number 87796 is built as a direct replacement for the specified Ford Focus application and is also referenced by ACDelco 18173L and Motorcraft KH149.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2004FordFocus2.0LL4Pipe To HeaterSmall I.D. Heater Hose
2003FordFocus2.0LL4Pipe To HeaterSmall I.D. Heater Hose
2002FordFocusPipe To HeaterSmall I.D. Heater Hose
2001FordFocusPipe To HeaterSmall I.D. Heater Hose
2000FordFocusPipe To HeaterSmall I.D. Heater Hose
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
ACDelco — 18173LCARQUEST — 19155Duralast — E87796Ford — 1M51-18K576-AAFord — 1M51-18K579-AAFord — 2M5Z-18472-ADFord — YS4Z-18472-CAFord — YS41-18C266-BAGates — 19155Motorcraft — KH149NAPA — 11155