ACDelco 16004 | Direct Ignition Coil Boot

Part Number
Direct Ignition Coil Boot

Fits: 00-03 Cadillac DeVille, 00-02 Cadillac Eldorado, 00-03 Cadillac Seville, 01-03 Oldsmobile Aurora

Special Price $10.00 Regular Price $13.99
In stock
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Estimated Ship Date: 1 Business Day or Less
ACDelco Professional Direct Ignition Coil Boots serve as the electrical connection between the coil and the spark plug. They act as insulators, helping keep moisture and contaminants out of the connection, and are a high quality replacement for many vehicles on the road today. These premium aftermarket replacement components are manufactured to meet your expectations for fit, form, and function.



  • High temperature resistant silicone helps protect against thermal overload
  • Provides the performance and dependability you expect from ACDelco
  • Stainless steel internal spring with resistor suppresses RFI and helps deliver maximum voltage to the spark plug
  • Weather tight boot seal helps protect from moisture intrusion


FAQ - A1Yes. If the direct ignition coil boots are cracked or damaged, they should be replaced.
FAQ - Q1Should I check the direct ignition coil boots when I replace my vehicle's spark plugs?
Good Maintenance Practices - S1 B1Before purchasing and installing a direct ignition coil boot, make sure they are the correct size and fit for your vehicle.
Good Maintenance Practices - S1 B2Regularly inspect your boots for signs of damage or wear, and replace them if signs of damage are found.
Marketing Statement - Product LineACDelco Wires and Cables provide high-quality replacement wires and cables for most cars on the road today. ACDelco offers a full line of GM Original Equipment and a select offering of Professional, premium aftermarket replacement products, including spark plug wire sets, battery cables, pigtail connectors, and socket assemblies.
Marketing Statement - Sub BrandWhen it comes to replacing your vehicle's wires and cables, ACDelco offers a full line of Professional, premium aftermarket wire and cable products including a variety of pigtail connectors, cables, and boots to make replacement simple and precise. ACDelco Professional, premium aftermarket wires and cables, fit your GM vehicle, as well as a wide range of other vehicles on the road today.
Mkt_State_Warranty_CALimited Lifetime Warranty as long as original purchaser still owns vehicle (Parts Only).
Mkt_State_Warranty_US24 Month / Unlimited Mile Limited Warranty (Parts Only). Please see for more details.
Package IncludesSpring
Signs of Wear & Troubleshooting - S1 B1Engine misfire
Signs of Wear & Troubleshooting - S1 B2Illuminated Check Engine light
Signs of Wear & Troubleshooting - S1 B3Reduced engine power
Signs of Wear & Troubleshooting - S1 HSigns of wear for direct ignition coil boot include but are not limited to:



  • 2000-2003 Cadillac Seville
  • 2000-2002 Cadillac Eldorado
  • 2000-2003 Cadillac DeVille
  • 2001-2003 Oldsmobile Aurora
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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