Motorcraft DG520 Ignition Coils & SP520 Spark Plugs – Set of 6 | OEM Ford Replacement

Motorcraft DG520 Ignition Coil & SP520 Spark Plug Set
Complete 6-Coil + 6-Plug OEM Tune-Up Kit for Ford & Lincoln

Get maximum performance and reliability with the Motorcraft DG520 Ignition Coil & SP520 Spark Plug Set (6 Coils + 6 Plugs). This OEM replacement kit ensures strong ignition, smooth engine operation, and long-lasting durability — perfect for restoring factory performance in your Ford or Lincoln vehicle.

Features & Benefits:

• Genuine Motorcraft OEM coils & spark plugs
• Complete set for a full ignition system tune-up
• Ensures reliable starts, smoother acceleration, improved fuel economy
• Built to Ford specifications for exact fit & durability
• Resistant to misfires, wear, and heat damage

Vehicle Compatibility:
Fits many Ford & Lincoln vehicles with 3-Valve Triton engines, including:

• Ford F-150 (4.6L/5.4L Triton V8)
• Ford Expedition, Explorer, E-Series (select engines)
• Lincoln Navigator, Mark LT

Confirm fitment with your owner's manual or OEM part number.

Cross Reference:

• DG520 replaces: 5C1584, C1541, 601000, IC508
• SP520 replaces: CYFS12Y-2, PZH14F, 12405

What's Included:
6x Genuine Motorcraft DG520 Ignition Coils + 6x Genuine Motorcraft SP520 Spark Plugs

Why Buy From Us:
🔧 100% Authentic Motorcraft Products | 🚙 OEM Fitment for Ford & Lincoln | 🚀 Fast USA Shipping & Easy Returns

❓ Quick FAQ

What engines is this kit designed for?
The 4.6L/5.4L 3-Valve Triton engines, known for a two-piece spark plug design prone to snapping. The SP520 is Ford's redesigned one-piece plug that fixes this issue.

What are signs of failing coils?
Engine stumble/hesitation under load, misfires or shaky idle, a Check Engine Light with codes P0300–P0308, and reduced fuel economy from incomplete combustion.

How do I replace these without breaking a plug?

1. Pre-soak plugs with penetrating oil overnight on a completely cold engine.
2. Remove the coils (7mm bolt) and check the boots for carbon tracking.
3. Break plugs loose with a wiggle technique — stop if you feel heavy resistance to avoid snapping.
4. Apply nickel anti-seize to the new plug's shield (not threads), then torque to 25 lb-ft.
5. Apply dielectric grease to the new coil boots and seat them firmly, tightening the retaining bolt.
6. Reconnect wiring, clear codes with an OBD-II scanner, and test-drive for smooth idle and acceleration.