Details

• Brand:

  

  

• SKU:

  EC-743

• Positions: Left, Right
• Other Names:

  Motorcraft™ Filler Cap, Motorcraft™ Emission Filter Cap, Motorcraft™ Cap, Cap Assembly Oil Filler

• Description:

  This is the genuine Motorcraft engine oil filler cap, cataloged by Ford as the Cap Assembly - Oil Filler. It threads or twist-locks onto the oil fill opening on the valve cover and seals the top of the crankcase, keeping engine oil contained while allowing the positive crankcase ventilation system to maintain the correct internal pressure and prevent contaminants from entering the engine. This is a widely shared Motorcraft service cap applied across a broad range of Ford, Lincoln, and Mercury cars, trucks, and vans spanning roughly the mid-1980s through 2010, including gasoline V6 and V8 engines as well as Power Stroke diesel applications, which is why it is listed as a common multi-vehicle component. A cracked cap, a hardened or torn sealing gasket, or a worn locking tab lets oil vapor and oil mist escape, which shows up as oil residue around the fill neck, a faint oil smell, a whistling or vacuum leak affecting idle quality, or a cap that will not stay latched. Replacing a degraded cap restores a proper crankcase seal and correct ventilation behavior. Because the built-in seal hardens with heat and age, a fresh genuine cap ensures a clean, leak-free seal at the fill neck. Confirm the cap style matches the valve cover fill neck on the specific engine before installing, seat it fully, and turn it until it locks so the gasket compresses evenly against the neck.

• Notes: Included with Adapter assembly. Part is included with valve cover.

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