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United States of America, Seattle
1 Level
682 Review
57 Karma

Review on MAS Set of 8 Ignition Coil DG508 and Motorcraft Spark Plug SP493 Compatibility with Ford Lincoln Mercury 4.6L Engines DG457 DG472 DG491 F523 3W7Z12029AA 1L2U12029AA 1L2U12A366A - High Performance Engine Parts by David Mills

Revainrating 1 out of 5

Scrap Parts: Ignition Parts

2 days after installing it on my 2004 awning. Number 5 started to backfire due to a short and upset the circuit of the voltage regulator and alternator. After replacing the alternator coil, it disappeared from the dashboard, and then the number 3 started misfiring again. Removed those unnecessary parts and set it to NAPA Gold and now everything is fine and working great. MAS are bad parts. If you want to properly tune your 4.6 Ford/Mercury, don't buy these coils after sale. I have concerns as a regular member of Revain, as a customer and yes. Mechanic with 40 years of experience with further purchasing of car parts by Revain in the future. Motorcraft spark plugs and coils wt. A little misleading.

Pros
  • OE STANDARD: All ignition coils meet or exceed OE specifications and are subject to strict quality control to provide the best performance and reliability. REPLACES PART DG508.
Cons
  • Very expensive