-10% Ignition Harness, Gen III HEMI with Early Coils

Chrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck and car line. Fortunately the two coils are very different visually and makes for a simple review. If the coil requires spark plug wires, it is the early coil. If the coil does not require plug wires and simply has two boots that connect to the plugs in the cylinder head, it is the later coil. View the image gallery for images of both types.

The HEMI’s Variable Valve Timing is not supported by the Holley systems at this time. You can run an engine that is equipped with VVT, but the cam timing will revert to the mechanical default. The Holley R&D team is working on an accessory harness that will drive the VVT actuator. However, it is not available at this time.

The HEMI’s Multi-Displacement System (MDS) was primarily designed for fuel economy purposes and does not need to be connected when switching to a Holley system. NOTE: Not legal for sale or use on pollution controlled vehicles.

Not Sure? Review this product documentation before you buy!

 
Wiring Diagram and Installation Sheet
Holley Adapter Harness for Gen III HEMI coils

Harnesses
Harness TypeIgnition Harness
TerminatedYes
General
ApplicationGen III HEMI with Early Coils
Unit of SaleEach

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Ignition Harness, Gen III HEMI with Early Coils

  • Views: 5164
  • Brand: Holley
  • Product Code: 558-310
  • Availability: In Stock
  • $138.00
  • $123.95
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