Iridium Tip Spark Plug; 4 Pack; Plug Type 3IR6; 16 mm. Thread; 0.8125 Reach;
MSD's spark plugs are engineered to improve the efficiency of the combustion process to create the most power possible combined with increased durability. The center tip of the plug is made from iridium to promote the best spark and increase resilience. A proprietary ceramic material enhances the dielectric strength of the plug housing forcing the spark, even under extreme cylinder pressures, to jump across the plug gap to the ground electrode. This electrode is machined to expose more spark to the incoming gases to promote the most effective combustion event possible.
  • Proprietary Plug Design Inside And Out
  • Designed For Use On High Performance Vehicles
  • Machined Electrode Increases Exposure
  • MSDs Proprietary Ceramic Formula
  • Yttrium Ground Electrode Reduces The Chance Of Pre-Ignition
  • Iridium Tip Improves Cold Starts
  • All Spark Plugs Tested Prior To Packaging And Shipping
  • Unique Insulator Design Improves Spark Isolation
  • Lower Voltage Requirements For Longer Coil Life

Application Summary:

Year Make/Model
2004 Ford Expedition
2006-2008 Ford Expedition
2006-2008 Ford Explorer
2007-2008 Ford Explorer Sport Trac
2004-2008 Ford F-150
2004 Ford F-150 Heritage
2005-2008 Ford F-250 Super Duty
1999-2008 Ford F-350 Super Duty
2005-2008 Ford Mustang
2006-2008 Lincoln Mark LT
2005-2008 Lincoln Navigator
2006-2008 Mercury Mountaineer

Fast Efficient Shipping

Through our distribution network Deliveries can be as fast as Next Day Delivery.
Delivery times vary by destination, tracking information is provided with every purchase.

Get it Installed

JB's Power Centre offers on-site professional installation services in Calgary and Edmonton, AB.
We have on staff licensed Mechanical Technicians as well as MECP Certified 12-Volt Technicians.

* Extend your products Manufacturer Warranty

All products include a manufacturer warranty, but you can extend this warranty with
JB's Purchase Protection Plan
*Available on select products.