2020 Ford Mustang Spark plugs
Depends on your version. Choose yours, or compare them here.
- 2.3L EcoBoost SP-550 part number
- 5.0L and 5.0L Bullitt SP-551 part number
SP-550
Part number · 2.3L EcoBoost
SP-551
Part number · 5.0L and 5.0L Bullitt
2020 Ford Mustang Owner's Manual, PDF pages 301 and 302
SP-550Open the manual at this page ↗Added Oct 18, 2026 · Updated
See where it's printed
Spark plugs (part number) · 2.3L EcoBoost · PDF page 301
SP-550
Spark plugs (part number) · 5.0L and 5.0L Bullitt · PDF page 302
SP-551
2020 Ford Mustang Owner's Manual, PDF page 301
SP-550Open the manual at this page ↗Added Oct 18, 2026 · Updated
See where it's printed
Spark plugs (part number) · 2.3L EcoBoost · PDF page 301
SP-550
2020 Ford Mustang Owner's Manual, PDF page 302
SP-551Open the manual at this page ↗Added Oct 18, 2026 · Updated
See where it's printed
Spark plugs (part number) · 5.0L and 5.0L Bullitt · PDF page 302
SP-551
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 2.3L EcoBoost | SP-550part number | “SP-550” | PDF page 301 ↗ |
| 5.0L and 5.0L Bullitt | SP-551part number | “SP-551” | PDF page 302 ↗ |
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