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.


  • Brand New Ignition Coil Set
  • Built to strict quality control standard
  • Direct replacement
  • 100% factory tested

NOTE: Some vehicles came with multiple versions of coils which do not interchange.  Please verify OE number prior to purchasing.


Returns Note:

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.

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.

Part Details

  • Quantity: Pair

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.

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I called to order to make sure right parts. Courteous,helpful. super knowledgeable. 100% satisifed
May 6, 2018
4 months ago
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Vehicle Fit

Year Make Model Description
2004-2005Cadillac Deville Cadillac Deville 1st Design Ignition Coil Pair
2004-2005Cadillac SRX Cadillac SRX Ignition Coil Pair V8 4.6L
2005Cadillac STS Cadillac STS Ignition Coil Pair V8 4.6L
2006Cadillac STS Cadillac STS Ignition Coil Pair V8 4.6L 1st Design
2004Cadillac Seville Cadillac Seville 1st Design Ignition Coil Pair
2004-2005Cadillac XLR Cadillac XLR Ignition Coil Pair V8 4.6L
2004-2005Pontiac Bonneville Pontiac Bonneville Ignition Coil Pair V8 4.6L

This part replaces:

  • OE # 12585765
  • OE # 89017778
Part #: 1AERK00287

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout