Ford Motorcraft SP548 Spark Plug Set for 5.0L/5.2L V8 — Set of 8 OEM plugs for Mustang & F-150 (2011–2017)

Motorcraft SP548 is an OEM spark plug set of eight engineered for Ford 5.0L and 5.2L V8 engines from select Mustang and F-150 model years.

This Motorcraft SP548 spark plug set replaces the factory plugs with genuine Ford OEM components designed to match factory specifications for heat range, electrode design, and fitment. These plugs are specified for a range of Ford vehicles including Mustang GT and Shelby versions and many F-150 trims with the 5.0L (and 5.2L naturally aspirated) engines. They arrive as a complete set of eight so you can service all cylinders at once and keep ignition performance consistent across the engine.

Will these spark plugs fit my Mustang or F-150?

Compatibility covers many Mustang and F-150 models from 2011 through 2017 and specific Mustang Shelby models up to 2020 with the 5.2L NA engine. Fit depends on engine displacement and whether the vehicle uses a supercharged variant; these SP548 plugs are for naturally aspirated 5.0L and 5.2L configurations unless otherwise noted.

• Compatible: 2011–2017 F-150 5.0L (FlexFuel) across trims like XL, XLT, Lariat, King Ranch, Platinum.
• Compatible: 2011–2020 Mustang GT, Shelby GT350, GT350R and Boss 302 models with 5.0L/5.2L NA engines as listed.
• Not for: supercharged 5.2L engines or forced-induction variants unless explicitly specified.
• Always verify fitment using your owner’s manual or VIN before ordering.

How do Motorcraft SP548 plugs affect engine performance?

These OEM spark plugs restore the ignition characteristics intended by Ford engineers, ensuring predictable combustion, smooth idling, and consistent firing across cylinders. They are manufactured to meet factory tolerances for heat range and electrode gap so timing and fuel burn remain stable after installation.

• Restores correct spark energy and combustion timing.
• Maintains factory-specified electrode gap for even firing.
• Reduces misfire potential when replacing worn or fouled plugs.
• Sold as a complete set of eight to service all cylinders simultaneously.

What should I know before installation?

Installation is straightforward for anyone comfortable with basic engine maintenance, but follow torque specs and gap checks to avoid damage. Use a torque wrench and follow Ford’s recommended tightening sequence; inspect ignition coils and boots while plugs are removed and replace any degraded components to ensure optimal ignition.

• Check and set electrode gap to Ford specification before fitting.
• Tighten to the manufacturer torque to prevent over- or under-tightening.
• Replace coils or boots if cracked or worn to prevent future misfires.
• Use anti-seize only if recommended by vehicle service instructions.

Why choose genuine Motorcraft OEM spark plugs?

Motorcraft plugs are produced to the same design and quality standards used on new Ford vehicles, so they match the original part’s performance, durability, and fit. Choosing OEM reduces the chance of compatibility issues that can arise with aftermarket substitutions and keeps maintenance aligned with manufacturer recommendations.

• OEM-level quality, matching factory materials and tolerances.
• Designed for vehicle-specific heat range and mounting dimensions.
• Sold as a matched set to ensure uniform ignition across cylinders.
• Backed by the reputation of Ford Motorcraft OEM supply chain.

Who is this for? If you own a compatible Ford Mustang or F-150 with the 5.0L or naturally aspirated 5.2L V8 and want to maintain factory ignition performance, this Motorcraft SP548 set of eight spark plugs is built for you. It’s ideal for DIY mechanics, professional technicians, and Ford enthusiasts who prefer genuine OEM parts for reliability, correct fitment, and predictable engine behavior. Always confirm your engine and trim before ordering to ensure proper application.

• Insist on Genuine OEM Parts for the Best Performance of your Vehicle
• Offering the Quality, Reliability and Durability You'd Expect from OEM Parts
• Research Applications Prior to Purchase To Make Sure This OEM Part Fits Your Vehicle, Including Engine, Drivetrain and Trim Level
• Description: 5.0L 2011-2020; 2015-17 5.2L without supercharger.
• Verify Fitment in your owners manual prior to purchase.