2017 Ford Flex Spark plugs
Depends on your version. Choose yours, or compare them here.
- 3.5L Duratec SP-520 part number
- 3.5L EcoBoost SP-534 part number
SP-520
Part number · 3.5L Duratec
SP-534
Part number · 3.5L EcoBoost
2017 Ford Flex Owner's Manual, PDF pages 299 and 300
SP-520Open the manual at this page ↗Added Oct 16, 2026 · Updated
See where it's printed
Spark plugs (part number) · 3.5L Duratec · PDF page 299
SP-520
Spark plugs (part number) · 3.5L EcoBoost · PDF page 300
SP-534
2017 Ford Flex Owner's Manual, PDF page 299
SP-520Open the manual at this page ↗Added Oct 16, 2026 · Updated
See where it's printed
Spark plugs (part number) · 3.5L Duratec · PDF page 299
SP-520
2017 Ford Flex Owner's Manual, PDF page 300
SP-534Open the manual at this page ↗Added Oct 16, 2026 · Updated
See where it's printed
Spark plugs (part number) · 3.5L EcoBoost · PDF page 300
SP-534
See every quote (2 values)
All versions
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| 3.5L Duratec | SP-520part number | “SP-520” | PDF page 299 ↗ |
| 3.5L EcoBoost | SP-534part number | “SP-534” | PDF page 300 ↗ |
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