8pc Genuine Motorcraft Ignition Coil & Spark Plug Kit DG511 SP546 OEM for Ford F150 F250 Expedition Lincoln 4.6L 5.4L Triton V8 3V Engine

Is your Ford Triton V8 suffering from rough idling, random misfires, or dropping fuel economy? Don't piece together a temporary fix with risky aftermarket parts. Eliminate the guesswork and restore exact factory performance with the ultimate 8pc Genuine OEM Motorcraft DG511 Ignition Coil and SP546 Spark Plug tune-up kit. Specifically engineered by Ford to cure the notorious "Triton stumble," this all-in-one factory replacement package delivers an immediate, flawless ignition refresh that gets your truck running smooth and pulling hard again.

Your engine’s ignition system operates as a precise ecosystem. Replacing worn ignition coils while leaving old spark plugs in place—or vice versa—forces the new components to work twice as hard, leading to premature failure and persistent P0300 to P0308 misfire codes. This official 8-piece DG511 + SP546 ignition kit is matched exactly to your truck's factory resistance and heat range specifications. By replacing all 8 plugs and coils simultaneously with genuine Ford parts, you guarantee uniform combustion across all cylinders, preventing stress on the catalytic converter and maximizing your engine's operational lifespan.

🆚 OEM MOTORCRAFT vs CHEAP AFTERMARKET

When it comes to the highly sensitive Ford 3-valve modular engines, generic aftermarket parts often fail within months due to inferior thermal management and slight variances in electrical resistance. Only Genuine Motorcraft DG511 and SP546 components are designed, engineered, and recommended by Ford Motor Company for your specific engine, eliminating the "ghost misfires" common with white-box knock-offs.

📦 WHAT’S INCLUDED

• 8x Genuine Motorcraft DG511 OEM Ignition Coils (Featuring official high-dielectric silicone boots and factory-applied dielectric grease)

• 8x Genuine Motorcraft SP546 Platinum Spark Plugs (The official updated Ford design with solid-shank construction to prevent the infamous breaking issue during future removals)

⚙️ COMPATIBILITY

This 8pc official ignition tune-up set is a direct factory replacement for Ford, Lincoln, and Mercury vehicles equipped with 4.6L or 5.4L V8 engines (specifically matching original part numbers DG511, SP546, SP515, 3L3Z12029BA, FD508, and UF537).

Perfect Fitment For:

• 2004–2008 Ford F-150 (5.4L V8 Triton / 4.6L V8)

• 2005–2008 Ford F-250 / F-350 Super Duty (5.4L V8)

• 2005–2008 Ford Expedition (5.4L V8)

• 2005–2008 Lincoln Navigator (5.4L V8)

• 2006–2008 Lincoln Mark LT (5.4L V8)

Tech Note: Please verify your vehicle's engine uses the straight-boot style coil design (DG511 style) before purchasing to ensure 100% accurate fitment.

🚨 SIGNS YOU NEED THIS

If your truck or SUV is exhibiting any of the following symptoms, your factory ignition coils and spark plugs have reached the end of their service life:

• The "Triton Chug": Shaking or jerking when the overdrive kicks in under light acceleration (45–60 mph).

• Flashing Check Engine Light (CEL): Stored diagnostic codes ranging from P0301 through P0308.

• Hard Cold Starts: Engine cranks excessively or sputters when starting in the morning.

• Sudden Drop in MPG: Unburned fuel dumping into the exhaust because of weak, inconsistent spark.

🛒 WHY BUY FROM VALTRIX

The automotive market is flooded with counterfeit ignition components packed in fake boxes. At Valtrix, we source our Motorcraft DG511 coils and SP546 plugs exclusively through authorized distribution channels. When you buy from us, you are guaranteed 100% authentic, brand-new OEM Motorcraft parts—no clones, no factory seconds, and no cheap knock-offs. Backed by our absolute authenticity guarantee and industry-leading customer support, we give you the confidence to complete your DIY garage repair correctly the very first time.

Stop driving with a dangerous engine misfire. Protect your engine and restore your truck's factory horsepower, smooth idling, and fuel economy today. Click [Add to Cart] to grab your 100% Genuine 8pc Motorcraft DG511 + SP546 kit from Valtrix now!

❓ FAQ

Q: Do I need to gap these Motorcraft SP546 spark plugs before installing them?

A: Genuine Motorcraft SP546 platinum spark plugs come pre-gapped from the factory to original Ford specifications. However, it is always a best practice to gently check the gap with a clean spark plug gapping tool prior to installation to ensure no shifting occurred during shipping.

Q: What is the difference between SP515 and SP546 spark plugs?

A: The SP546 is the official updated, superseded design issued by Ford Motor Company to replace the older, problematic SP515 model. The newer design features a reinforced, solid-housing design that dramatically reduces the risk of the plug snapping off inside the cylinder head during future spark plug changes.

Q: Can I use this kit if my engine only has one cylinder misfiring?

A: Yes, though it is highly recommended to replace all 8 at once. If one factory coil or plug has failed due to age and heat cycles, the remaining seven cylinders are operating on equally degraded components and are likely to fail shortly after.

Q: Does this kit come with dielectric grease already on the boots?

A: Yes, genuine Motorcraft DG511 ignition coils feature factory-applied lubricant inside the silicone boots to ease installation, seal out moisture, and prevent voltage leaks right out of the box.