HP Copper Spark Plug; 1 Pc Design; 1 Range Colder Than PN[8160]; 9/16 in. Hex; 13/16 in. Reach; Resistor; Tapered Seat; 1.25mm Thread Pitch; 16mm Thread Size; 8 Pack Of PN[346C1];
Made with a Copper Core Which is a Better Conductor than Platinum and Iridium. Delivers a Stronger Spark Especially in High Performance Application Where High Combustion Pressures Are Present. Copper is Much Better at Dissipating Heat Than Other Materials Which Lessons the Chance of a Misfire. Gapable Allowing You to Open the Gap Exposing a Larger Flame Kernel or Close it if Needed For High Boost Applications. All ACCEL HP Spark Plugs Have Machine Rolled Threads Allowing For a More Precise Thread Engagement and Torque Retention.
  • One Piece Design
  • Wont Break Off In Head During Removal Like Two Piece Designs
  • Copper Core Is A Better Conductor Than Iridium Or Platinum Plugs
  • Copper Dissipates Heat Much Better Than Other Materials
  • C-Cut Design Un-Shrouds The Spark Kernel For A Better Burn
  • Unlike Iridium Or Platinum Plugs
  • The Accel Hp Plugs Are Gapable
  • Machine Rolled Threads For Precise Thread Engagement
  • One Step Colder Than Stock

Application Summary:

Year Make/Model
2005-2008 Ford Expedition
2006-2008 Ford Explorer
2007-2008 Ford Explorer Sport Trac
2004-2008 Ford F-150
2005-2008 Ford F-250 Super Duty
2005-2008 Ford F-350 Super Duty
2005-2008 Ford Mustang

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.