NGK Laser Platinum Spark Plug PTR5F-11 (8 Pack) - Compatible with 2005 Mercury Grand Marquis Ultimate Edition 4.6L V8 Engine - High Performance Ignition for Smoother Acceleration & Better Fuel Efficiency - Perfect for Daily Commuting & Highway Driving

These double platinum NGK laser platinum spark plugs feature laser-welded technology. Lasers are used to pinpoint precision welds, reducing excess debris. The reduction of debris decreases the required voltage to bridge the spark gap. Platinum disks welded on the ground and center electrodes reduce the wear rate on both of these surfaces, ensuring great durability and long life. Shorty Spark Plug: No. Resistor: Yes. Manufacturer Heat Range: 5. Electrode Tip Material: Platinum. Electrode Core Material: Copper. Insulator Type: Projected. Spark Plug Thread Size: 14mm. Spark Plug Reach: 0.708 in. Spark Plug Seat Style: Tapered. Wrench Diameter: 5/8 in. Ground Strap Quantity: One. Notes: Wide gap spark plug of 1.1mm.

Engine V8, Engine Size 4.6L/281

Engine Family Ford modular V8

Dual platinum contacts reduces gap erosion. Ensures great durability and long life

Original equipment manufacturer approved. Precision laser welded platinum center electrode

Sold In 8 Pack