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M102 Single Ignition Coil (Interchange # DG508)

Availability: In stock


Quick Overview

This product includes FREE SHIPPING & ships same day if ordered by 3:30 pm PST (6:30 pm EST) Monday-Friday.

 This is a brand new quality Araparts brand ignition coil for your Ford, Lincoln, or Mercury vehicle. This ignition coil comes with a 1g packet of silicone dielectric grease, a limited lifetime warranty, and the boot and spring with the ferrite in the spring, just like the original equipment. They also use copper windings, just like the original equipment.

This set ships for free VIA USPS 2-3 day air to ALL 50 states. This includes Saturday delivery. UPS Ground shipping can be requested if preferred. At, all of our ignition coils are manufactured for us and tested after the manufacturing process. If you have a defective coil, we will pay to return it, and send a replacement over. Easy as a snap. Most people with old coils notice a significant improvement and restoration of vehicle performance and fuel economy.

Part number: M102
Part number interchange:

  • DG508

  • 1L2Z12029AA

  • 1L5Z12029AA

We are able to get our prices so low by purchasing several hundred, and even several thousand coils at a time, when your local auto parts store may only purchase 4-10. We are not a drop shipper. We have a physical location in Northern California

Guaranteed to fit - Scroll down to view fitment information

This is a direct replacement with no modification needed to install. When buying from Araparts, you can be assured that you have the correct part for your vehicle.  If our fitment information is incorrect, we will pay to return the coils that don't fit. Buying auto parts online is a new concept to many people, and you're not alone. We're here to build the bridge that connects you, and the EXACT part that you need.



Make sure it fits! Vehicle fitment:


  • 1998 - 2011  Crown Victoria 4.6L V8

  • 2003-2011  E-150 5.4L V8  
  • 2003-2011  E-150 4.6L V8 
  • 2003-2005  E-150 Club Wagon 5.4L V8
  • 2003-2005  E-150 Club Wagon 4.6L V8
  • 1997-2002  E-150 Econoline 5.4L V8  
  • 2000-2002  E-150 Econoline 4.6L V8   
  • 2000-2002  E-150 Econoline Club Wagon 4.6L V8   
  • 1997-2002  E-150 Econoline Club Wagon 5.4L V8  
  • 2003-2009  E-250 5.4L V8  
  • 2003-2009  E-250 4.6L V8  
  • 1997-2002  E-250 Econoline 5.4L V8  
  • 2004-2005  E-250 Super Duty 5.4L V8 
  • 2003           E-350 5.4L V8 
  • 2003-2005  E-350 Club Wagon 5.4L V8 
  • 1997-2002  E-350 Econoline 5.4L V8 
  • 1997-2002  E-350 Econoline Club Wagon 5.4L V8  
  • 2004-2009  E-350 Super Duty 5.4L V8 
  • 2000-2002  E-450 Econoline Super Duty 5.4L V8
  • 2000-2002  E-450 Econoline Super Duty Stripped 5.4L V8 
  • 2003-2009  E-450 Super Duty 5.4L V8  
  • 2003           E-450 Super Duty Stripped Chassis 5.4L V8
  • 1997-1999  Econoline Super Duty 5.4L V8 
  • 2000-2005  Excursion 5.4L V8 
  • 2000-2004  Expedition 4.6L V8 
  • 1997-2004  Expedition 5.4L V8 
  • 2002-2005  Explorer 4.6L V8   
  • 1997-2003  F-150 5.4L V8   
  • 2000-2003  F-150 4.6L V8   
  • 2004-2008  F-150 4.6L V8 
  • 2009           F-150 4.6L (black boots only for 2009 4.6L F150 - Make sure to cross check part numbers)  

NOTE / FAQ:  2004, 2005, 2006, 2007, and 2008 F150 with the 5.4L V8 requires this part.

  • 1997-1999 F-250 5.4L V8     
  • 1999-2004  F-250 Super Duty 5.4L V8  
  • 1999-2004  F-350 Super Duty 5.4L V8 
  • 1999-2004 Mustang GT 4.6L V8 SOHC


  • 1998  Navigator 5.4L V8 SOHC SOHC ONLY 
  • 1998-2009 Town Car 4.6L V8  


  • 1998-2011  Grand Marquis 4.6L V8   
  • 2002-2005  Mercury Mountaineer 4.6L V8   


More information about this coil:

Single Ignition Coil for Your Ford, Lincoln, or Mercury (DG508 interchange):


The reference/interchange number for these ignition coils is "DG508". More original part numbers are included in the information above to help as well. These come with a 2.5g packet of silicone dielectric grease. This grease is to be used on the bottom of the inside of each boot where it contacts the spark plug. It is not to be inserted in the 12v plug in connector.  Ignition coils wear out over time. Over the years, high and low temperature changes, humidity, and even bad grounds and electrical problems can cause ignition coils to fail, or not perform at full capacity. This can cause a misfire, also referred to as hiccups or surging. An ignition coil (also referred to as coil pack, coil on plug/COP, coil over plug)  is a crucial part of your ignition system. An Ignition coil is a miniature open circuit power transformer, which converts the 12v in your Ford, Lincoln, or Mercury electrical system into 35,000 volts. The voltage is transferred to the spark plug, and ignites the fuel. 



Because all 8 of the ignition coils wear in the same environment, it is usually best to replace old ignition coils all at the same time if they are several years old. This will save money or time on labor, however this single ignition coil is available for those who may not have old ignition coils in their vehicle. In this case, purchasing one is just fine. It isn't too abnormal fo an ignition coil to go bad, even in a newer vehicle. Other causes are washing the engine bay, and rain. On some of the E-vans/Econoline, it is known that water from the wiper cowl may leak onto the rear coils. Also, for some of the 1997-2002 5.4L V8 F150 trucks and Expeditions, the wire that leads to the number 8 coil may rub on the fuel pressure regulator and short out. Be sure to check this wire. The DG508 style ignition coil is a commonly replaced item in most of the Ford cars, trucks and SUV. In some instances of minor misfiring on Ford Lincoln or Mercury vehicles, the check engine light will not illuminate. This is because the PCM does not illuminate a check engine light unless the misfire is more than 2.3% of the firing time. It does however still record the misfire. We can help you find these for FREE in our how-to section

Checking vehicle grounds, wiring, and other components such as the vehicle computer (also referred to as the PCM, ECU, or ECM) can also prevent repeated failure of ignition coils and save hundreds, or even thousands of dollars in repairs.

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All of our parts come standard with an unlimited mileage warranty. The warranty length is shown on each product description page. We will repair or replace any defective part free of charge, and we'll even pay for return shipping for defective parts. Most other companies will not pay return shipping. 


Why are your parts so cheap?

What makes us very different from your local auto parts store and dealership is volume. We are a small company, but whatever item we carry, we carry hundreds, or even thousands of. This allows us to get that same quality auto part as your local aftermarket auto part store, but at a fraction of their prices. 



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