The ignition coil is a crucial part of your ignition system. It's function is to convert the 12 volt power of your vehicle's electrical system in to 35,000 or more volts. This produces a high intensity spark at the spark plug which then ignites the fuel in the cylinder. Coils in general will wear out over time. This will cause a misfire condition. In engines like this with one coil per cylinder you can diagnose a coil by putting a timing light on each one to make sure it is lighting the light consistently.

This Coil Over Plug Ignition Coil features the following specifications:

  • Brand New
  • Replaces dealer part number: 12596547, 12612369, 8125965470
  • Built to strict quality control standard
  • Direct replacement
  • 100% factory tested
  • Set of 5


Our electrical and electronic parts are subject to strict quality control testing .  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
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1 Stars
Parts were Perfect
G/F told me she had code read at auto zone, for a bad coil .... ordered these coils and plugs for her H3, piece of cake to replace and install, she swears truck never ran better, Very Happy not only with Quality and speedy delivery but the Price was Great ! Everyone knows what Garages charge... especially women for repairs, was Happy to help, Bookmarked 1A for any future needed parts, Peter
July 6, 2017
8 months ago
Ignition Coil Set
The set of 5 I Coil Packs I ordered were about 50% less than the Auto parts stores. They were a perfect fit- right down to the OEM connectors, etc. Runs great- fixed my ignition "miss" issue.

1 Comment: I also purchases Spark Plugs but they only came in sets of 4 and I needed five. No biggie though. I bought 1 locally and on the road again.
March 2, 2017
1 year ago
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Vehicle Fit

  • 2007-2010 Chevy Colorado Ignition Coil L5 3.7L 5 Piece Set
  • 2007-2010 GMC Canyon Ignition Coil L5 3.7L 5 Piece Set
  • 2007-2009 Hummer H3 Ignition Coil L5 3.7L 5 Piece Set
  • 2009 Hummer H3T Ignition Coil L5 3.7L 5 Piece Set
Part #: 1AERK00189

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