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Luis Neels photo
South Africa, Pretoria
1 Level
689 Review
42 Karma

Review on ACDelco D521C Ignition System: Original Equipment for Optimal Performance by Luis Neels

Revainrating 5 out of 5

Genuine Factory GM Coil

Replaced a corroded coil on a 2013 Volt that was causing multiple cylinders to misfire. Supplied with pre-lubricated rubber boots and fittings. I added extra dielectric grease to the inner and outer mating surfaces of the boot to reduce the chance of corrosion again. Now he runs like a champion. Appears to be a genuine GM part.

Pros
  • Superb Design
Cons
  • -