Free repair checklist
Replace Your Fusion's Spark Plugs at 100K Miles — Here's the Right Spec
The 2017 Ford Fusion hits the 100K spark plug interval and most dealers quote $180+ for a job you can do yourself. This free guide confirms the Motorcraft SP-514 plug, the exact 10 ft-lb torque spec, and walks you through the full replacement without over-tightening.
This checklist is a practical starting point. The DIY Mechanic System gives you a clearer path to diagnose the problem, plan the job, and complete the repair.
What this checklist covers
- Motorcraft SP-514 confirmed — the exact OEM plug Ford specifies, no guessing at the parts counter
- 10 ft-lb torque spec — don't over-tighten and risk stripping the threads in the aluminum head
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