Description
Spark Plugs (Actual product may vary from picture shown)
Fresh plugs are a good place to start when an engine develops a misfire, gets harder to start, or runs rough. Check the old plugs as you pull them. Fouling, uneven wear, or a damaged electrode can help point you toward the problem.
Choose from the listed options: 0-540, 454, 496, 502, 6.0, 383/420 HP, and 6.2 L. Before ordering, confirm the plug part number matches your setup. Engine size alone doesn’t account for different cylinder heads or engine modifications.
Check the gap and installation torque against your engine builder’s specifications before installing. Product appearance may vary by option.




