Details

• Brand:

  

  

• SKU:

  W715777-S300

• Positions: Inner
• Other Names:

  Seal Ring, Ring

• Description:

  This is a genuine Ford thermostat O-ring, a consumable rubber sealing ring that seats between the thermostat or thermostat housing and the engine to keep the cooling system sealed. Ford dealer catalogs list it as a Thermostat O-Ring and cooling system seal ring, and it is supplied as part of the thermostat assembly. It sits in a machined groove and is compressed when the housing is bolted down, forming a leak-tight seal that keeps coolant contained and maintains correct cooling system pressure and flow. This is a single-use consumable seal: it should be replaced rather than reused whenever the thermostat or housing is removed, because a compressed or aged ring will not seal reliably a second time. You will find it used on Ford applications including EcoSport, Fiesta, and Focus fitted with the 1.0L engine, with applications spanning a broad range of model years. These are representative examples rather than a complete list. A worn, cracked, or improperly seated thermostat O-ring causes a coolant leak at the thermostat housing, which can lead to low coolant level, overheating, visible weeping or dripping, and a low-coolant warning. Because it is an inexpensive consumable that protects against expensive overheating damage, it is standard practice to fit a new seal during any thermostat service. Confirm the correct seal for your specific vehicle and engine against your VIN before ordering, since cooling system seals vary by application.

• Notes: Included with thermostat.
• Applications: 1.0L.

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