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Vehicle Fit

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 and cause a misfire condition. In engines like this that use a coil, if the coil goes bad, the complete assembly needs to be replaced.


  • Brand New Ignition Coil
  • Replaces dealer part numbers: 12613057, 12629037
  • Built to strict quality control standards
  • Direct replacement
  • 100% factory tested

This is an electrical part and is tested before it leaves our manufacturer.

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Direct Fit Replacement

Guaranteed to fit and function properly for your specific application.

Optimum Performance

Meets or exceeds requirements of the vehicle. Provides the correct primary and secondary resistance, voltage output, and spark energy needed to restore original operating condition.

Premium Quality

Manufactured with quality materials to meet highest quality control standards in the industry.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

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.

  1. step : Loosening the Intake Manifold (0:37)
    • Remove the oil fill cap
    • Remove the engine cover
    • Remove the 13mm bolts from the top of the intake manifold
    • Loosen the air intake hose clamp
    • Pull the air intake box off
    • Loosen the stud with a 10mm wrench
    • Loosen the 18mm bolt to pull back the bracket from the hose
  2. step : Removing the Ignition Coil (2:02)
    • Loosen the 10mm bolt on the ignition coil
    • Pry off the ignition coil sensor harness
    • Lift the intake manifold
    • Remove the ignition coil
  3. step : Reinstalling the Ignition Coil (2:38)
    • Insert the ignition coil into place
    • Connect the ignition coil sensor harness
    • Tighten the 10mm bolt to the ignition coil
  4. step : Tightening the Intake Manifold (3:05)
    • Preliminarily tighten the 13mm bolts to the top of the intake manifold
    • Torque the 13mm bolts to 20 foot-pounds
    • Tighten the stud with a 10mm wrench
    • Tighten the 18mm bolt
    • Press the intake box to the intake manifold
    • Tighten the hose clamp
    • Insert the engine cover in place
    • Tighten the oil cap

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Torque Wrench

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 13mm Socket
  • 18mm Socket

  • Sockets - SAE

  • 5/8 Inch Spark Plug Socket

  • Wrenches - Metric

  • 10mm Wrench

5.00/ 5.0
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Fully Satisfied
As a DIY mechanic I find 1AAuto to be a great help with walk-through-the-process videos and quick & professional handling of orders. Recently had the need for just one Ignition Coil/Coil on Plug (COP) for the family car, and along with their good handling of my order--the cost was 50% of what I would have paid locally. Im fully satisfied with the build quality and performance of the 1AEC100237 Ignition Coil--as I have been with past products. --Dave B.
October 8, 2018
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Year Make Model Description
2005-2007Buick Allure Buick Allure Ignition Coil V6 3.6L
2009Buick Enclave Buick Enclave Ignition Coil
2005-2008Buick LaCrosse Buick LaCrosse Ignition Coil V6 3.6L
2004-2006Buick Rendezvous Buick Rendezvous Ignition Coil V6 3.6L
2004-2010Cadillac CTS Cadillac CTS Ignition Coil V6 3.6L
2006-2007Cadillac CTS Cadillac CTS Ignition Coil V6 2.8L
2004-2006Cadillac SRX Cadillac SRX Ignition Coil V6 3.6L
2005-2010Cadillac STS Cadillac STS Ignition Coil V6 3.6L
2009Chevy Traverse Chevy Traverse Ignition Coil
2009GMC Acadia GMC Acadia Ignition Coil
2006-2009Saab 9-3 Saab 9-3 Ignition Coil V6 2.8L Turbo
2009Saturn Outlook Saturn Outlook Ignition Coil
Part #: 1AECI00237

Out of Stock

How-to Video:

(04:49 min)