Description
Motorcraft SP-522-X Iridium Spark Plug
The Motorcraft SP-522-X is a genuine OE iridium spark plug engineered by Ford to deliver reliable ignition performance, long service life and optimum combustion efficiency. Manufactured to Ford’s exacting standards, it provides consistent spark energy, excellent cold starting and smooth engine operation while meeting Ford’s original equipment specifications.
Featuring a fine-wire iridium centre electrode and platinum-enhanced ground electrode, the SP-522-X is designed for extended service intervals and dependable performance in both naturally aspirated and supercharged Ford V8 applications.
Features
- Genuine Motorcraft OE spark plug
- Fine-wire iridium centre electrode
- Platinum-enhanced ground electrode
- Internal resistor reduces radio frequency interference (RFI)
- Excellent cold start and idle performance
- Long service life
- Engineered to Ford OE specifications
- Suitable for naturally aspirated and supercharged Ford V8 applications where specified
Specifications
- Part Number: SP-522-X
- Brand: Motorcraft
- Electrode Material: Fine-Wire Iridium
- Thread Size: M12 x 1.25
- Seat Type: Gasket
- Internal Resistor: Approx. 2,000–9,000 Ω
- Condition: Brand New Genuine Motorcraft
Typical Applications
Suitable for selected Ford and FPV vehicles including:
- Ford Mustang GT 5.0L Coyote V8 (2011–2014)
- Ford F-150 5.0L Coyote V8 (selected models)
- FPV GT, GT-P, GS & Pursuit 5.0L Supercharged Miami V8 (selected FG & FG X models)
- Ford Falcon XR8 5.0L Supercharged Miami V8 (selected FG & FG X models)
- Other Ford vehicles specifying Motorcraft SP-522 or SP-522-X
Always confirm compatibility using your VIN, engine code or existing spark plug part number before ordering.
Why Choose Genuine Motorcraft?
Motorcraft spark plugs are engineered specifically for Ford engines to provide optimum combustion efficiency, reliable ignition and long service life. Genuine OE plugs help maintain factory performance, fuel economy and emissions compliance while ensuring compatibility with Ford ignition systems.
Package Contents
- 8 × Genuine Motorcraft SP-522-X Iridium Spark Plug
Workshop Tip: For supercharged Miami and modified Coyote applications, spark plug gap should be checked and adjusted to suit your engine’s boost level and tune before installation.


























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