Set of 4 Leading Spark Plug Laser Iridium NGK 6700 RE7CL for 04-11 Mazda RX8

Electrode Material: Iridium
Thread Size: 0.551"
Thread Reach: 21 mm
Ground Electrode Quantity: 1
Gap: 0.044"
Spark Plug Seat Style: Flat
Heat Range: 7
Longevity: 80-100k Miles
Type: Slant
Thread Diameter: 14 mm
Overall Height: ISO
Resistance: 5 kOhm
Insulator Height: 60 mm
Center Electrode Core Material: Copper Core
Ground Configuration: Slant
Ground Electrode Core Material: Platinum
Ground Electrode Tip Design: Pin Type
Insulator Type: Non-Projected
Nominal Gap: 0.044"

Designed for faster starts and quicker acceleration
Better fuel economy and lower emissions
OE approved design
Laser welded iridium center electrode tip
Platinum disc welded to backside of ground electrode
Ideal for applications with DIS (Distributorless Ignition System) “waste spark” ignition systems that require double precious metal spark plugs
Manufactured using triple-gasket sealing process to prevent leakage through the shell
Alumina silicate insulator for strength and optimal heat transfer
Cold-rolled threads for easier removal and installation
Corrugated ribs eliminate misfire causing “flashover”
Trivalent metal plating
Last 80 to 100 thousand miles

Designed to ignite the air/fuel mixture within the combustion chamber, a spark plug has to withstand the high temperature and combustion pressure within the engine. If everything operates properly, the engine runs efficiently providing optimal performance, maximum fuel economy and the lowest exhaust emissions due to effective combustion. Spark plugs are available in different heat ranges and thread sizes to suit engine requirements. There are several factors - such as thread reach, thread diameter, the insulator nose projection, and whether the spark plug incorporates a gasket or is of the conical type - to consider when choosing the correct spark plug for your needs.