Save Money! 2021 F-150 3.5L Spark Plug Change at Home
The Toolbox Chronicles · 4K views · 15:27
Skill Level
BeginnerTime Required
Half dayEstimated Cost
$0–50Equipment
Ford F-150 (2021) 3.5L EcoBoostPermit Required
NoTools Needed
socket wrench set, spark plug socket, ratchet, screwdriversIn this video, I show you how to replace the spark plugs on a 2021 Ford F-150 with the 3.5L V6 EcoBoost engine.
We’ll go over every step from removing the engine cover to properly installing new plugs — the right way.
This video is perfect for anyone who wants to save money and do their own maintenance instead of paying dealership prices.
🔧 In this video:
Tools you’ll need for the job!
-8mm socket
-10mm socket
-Ratchet
-9/16 Spark Plug Socket - Check out my page for the plug socket kit!
-Extensions
OEM spark plugs
- SP-596 Motorcraft
Removing ignition coils safely
Removing and installing new plugs
💡 Recommended Replacement Interval: Every 60,000–100,000 miles depending on plug type and driving conditions.
👉 If this video helped you, don’t forget to like, subscribe, and drop a comment if you have any questions!