Spark Plugs Specification
Verified OEM & Service Reference2021 Ford Explorer 2.3L EcoBoost I4 — Spark Plugs
Recommended interval: Every 60,000–100,000 miles (40,000 miles on turbo engines)
Engine / Trim Variant
OEM Part Number
SP-594
Quick Purchase
Check verified fitment on Amazon
Technical Specifications
| Cylinders / Plug Count | 4-cyl / 6-cyl |
|---|
Compatible Aftermarket Options
Direct OEM cross-referencesNo aftermarket cross-reference listed yet. Search directly for compatible spark plugs options:
Search 2021 Ford Explorer 2.3L EcoBoost I4 (SP-594) on AmazonSpark Plugs Fitment by Engine / Trim (2021 Ford Explorer)
| Engine / Trim | Oil Spec & Capacity | OEM Oil Filter |
|---|---|---|
| 2.3L EcoBoost I4 | 5W-30 • 6.0 qt (5.7L) | FL-910S |
| 3.0L EcoBoost V6 (ST / Platinum / King Ranch) | 5W-30 • 6.0 qt (5.7L) | FL-500S |
| 3.3L V6 / Hybrid | 5W-30 • 6.0 qt (5.7L) | FL-500S |
DIY Fitment & Verification Checklist for 2021 Ford Explorer
- Confirm your engine code or trim variant above before ordering parts, as mid-year production changes can affect spark plugs fitment.
- When purchasing OEM or aftermarket brands (Motorcraft, ACDelco, Mopar, Wix, Fram, Mobil 1, Bosch, NGK), cross-check the Amazon Garage Confirmed Fit badge with your 17-digit VIN.
- Always consult your 2021 Ford Explorer owner's manual for exact torque specs and fluid service intervals.
Sources: NHTSA vPIC & OEM Service SpecificationsReport an inaccurate spec or part number
Frequently Asked Questions
What is the OEM spark plugs specification for a 2021 Ford Explorer?
The primary OEM spark plugs part number / specification for the 2021 Ford Explorer 2.3L EcoBoost I4 is SP-594.
Which aftermarket spark plugs brands fit the 2021 Ford Explorer?
Use your 17-digit VIN to confirm direct-fit aftermarket spark plugs replacements on Amazon.