The MSD Heli-Core 8mm wires have also been covered with MSD's Heat Guard sleeving kit (part No. 3408), which is a special woven quartz-glass fiber sleeve that protects the plug wire from excessive ...

To test the condition of your spark plug wires, we created this simple DIY diagnostics inspection to keep your car purring along.

We like the MSD Pro Crimp Tool (PN 35051), which is available with optional inserts for various types of electrical connectors, including spark plug wire terminals.