Heater Hose - Hybrid : Notes

2005 Ford Taurus SEL, 4D SedanSECTION Notes
WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Exploded View Of Heater Hose-To-Heater Core Connections - Hybrid
GF0025761Courtesy of FORD MOTOR CO.
Item Part Number Description
1 W527209 Clamp
2 18K579 Heater hose - inlet
3 W527209 Clamp
4 18K580 Heater hose - outlet
5 - Heater hose retainer clip
Fig 2: Exploded View Of Heater Hose-To-Engine Connection - Hybrid
GF0025762Courtesy of FORD MOTOR CO.
Item Part Number Description
6 W527209 Clamp
7 18K579 Engine coolant outlet to heater core hose
Fig 3: Exploded View Of Throttle Body Heater Hose - Hybrid
GF0025763Courtesy of FORD MOTOR CO.
Item Part Number Description
8 W527209 Clamp
9 18K580 Throttle body heater hose
Fig 4: Exploded View Of Heater Hose-to-Auxiliary Coolant Flow Pump Connections - Hybrid
GF0025764Courtesy of FORD MOTOR CO.
Item Part Number Description
10 W527209 Clamp
11 18K580 Heater core to auxiliary coolant flow pump hose
12 W527209 Clamp
13 18C553 Auxiliary coolant flow pump to thermostat tube hose
Fig 5: Exploded View Of Auxiliary Coolant Flow Pump Hose-to-Thermostat Connection - Hybrid
GF0025765Courtesy of FORD MOTOR CO.
Item Part Number Description
14 W527209 Clamp
15 18C553 Auxiliary coolant flow pump to thermostat tube hose
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.