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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. 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: 88958974
  • Built to strict quality control standard
  • Direct replacement
  • 100% factory tested

This coil is for a distributorless application. Sold as a EACH. Replace individually as needed.


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 : Removing the Air Intake Box (0:57)
    • Remove the two 8mm bolts holding the top of the air box
    • Remove the two hose clamps with a flat blade screwdriver
    • Twist and remove the two vacuum lines
    • Pull the air intake box up and out
    • Twist the air intake hose collar off
  2. step : Removing the Ignition Coil (2:45)
    • Disconnect the locking tab with a flat blade screwdriver
    • Disconnect the ignition coil wiring harness
    • Remove the 10mm bolt from the engine coil
    • Pull the ignition coil up and out
  3. step : Installing the New Ignition Coil (3:59)
    • Insert the ignition coil into place
    • Insert and tighten the 10mm bolt
    • Connect the ignition coil wiring lead
    • Replace the locking pad
  4. step : Installing the Air Intake Box (5:01)
    • Twist the air intake hose collar into place
    • Insert the air intake box into place
    • Insert the two vacuum lines
    • Insert and tighten the two hose clamps with a flat blade screwdriver
    • Insert and tighten the two 8mm bolts holding the top of the air box

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Socket Extensions

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket
  • 8mm Socket

5.00/ 5.0
4 reviews
5 Stars
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1 Star
Ignition Coil
I recently purchased in ignition coil from 1A Auto. It was very reasonably priced, and fit the vehicle as expected. I highly recommend 1A Auto to anyone who asks. Additionally, the how-to videos are top rate.
June 6, 2017
05 trailblazer ignition coil
Direct fit and fixed me issue on the truck. Fast shipping, recived a day ahead of schedule. Thanks again 1aauto
October 22, 2018
2004 chevy trailblazer ignition coil
Easy 15 minute install and truck ran perfectly! Thanks
October 25, 2018
1st Time get Right auto Shop
The Product was actual the manufactory auto parts. I would truly recommend this shop to any and every body. The service was great with one exception. They need to do better on the correct time of delivery. Customer depends on delivery time especially when their auto is dismantle and waiting on their part. I feel that they should be a little more accurate, than less. over all they the best I seen online.
November 23, 2018
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
2004-2005Buick Rainier Buick Rainier Ignition Coil L6 4.2L
2004-2006Chevy Colorado Chevy Colorado Ignition Coil L5 3.5L
2004-2006Chevy Colorado Chevy Colorado Ignition Coil L4 2.8L
2002-2005Chevy Trailblazer Chevy Trailblazer Ignition Coil L6 4.2L
2002-2005Chevy Trailblazer EXT Chevy Trailblazer EXT Ignition Coil L6 4.2L
2004-2006GMC Canyon GMC Canyon Ignition Coil L5 3.5L
2004-2006GMC Canyon GMC Canyon Ignition Coil L4 2.8L
2002-2005GMC Envoy GMC Envoy Ignition Coil L6 4.2L
2002-2005GMC Envoy XL GMC Envoy XL Ignition Coil L6 4.2L
2004-2005GMC Envoy XUV GMC Envoy XUV Ignition Coil L6 4.2L
2006Hummer H3 Hummer H3 Ignition Coil L5 3.5L
2003-2005Isuzu Ascender Isuzu Ascender Ignition Coil L6 4.2L
2008Isuzu Ascender Isuzu Ascender Ignition Coil L6 4.2L
2007-2008Isuzu i-290 Isuzu i-290 Ignition Coil L4 2.8L
2006Isuzu i-350 Isuzu i-350 Ignition Coil L5 3.5L
2007-2008Isuzu i-370 Isuzu i-370 Ignition Coil L5 3.7L
2002-2004Oldsmobile Bravada Olds Bravada Ignition Coil L6 4.2L
2005Saab 9-7X Saab 9-7X Ignition Coil L6 4.2L
Part #: 1AECI00173

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(07:32 min)