2020 Ford F-150 Spark plugs
Depends on your version. Choose yours, or compare them here.
- 3.3L SP-520 part number
- 3.5L EcoBoost SP-578 part number
SP-520
Part number · 3.3L
SP-578
Part number · 3.5L EcoBoost
2020 Ford F-150 Owner's Manual, PDF pages 431 and 432
SP-520Open the manual at this page ↗Added Oct 18, 2026 · Updated
See where it's printed
Spark plugs (part number) · 3.3L · PDF page 431
SP-520
Spark plugs (part number) · 3.5L EcoBoost · PDF page 432
SP-578
2020 Ford F-150 Owner's Manual, PDF page 431
SP-520Open the manual at this page ↗Added Oct 18, 2026 · Updated
See where it's printed
Spark plugs (part number) · 3.3L · PDF page 431
SP-520
2020 Ford F-150 Owner's Manual, PDF page 432
SP-578Open the manual at this page ↗Added Oct 18, 2026 · Updated
See where it's printed
Spark plugs (part number) · 3.5L EcoBoost · PDF page 432
SP-578
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 3.3L | SP-520part number | “SP-520” | PDF page 431 ↗ |
| 3.5L EcoBoost | SP-578part number | “SP-578” | PDF page 432 ↗ |
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