MSD Ignition MSD3731 Iridium Resistor Type Spark Plug 11ir4y Gasket Seat 14mm X 3/4"

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.What makes MSD's Iridium plugs a cut above the competition? Besides MSD's race winning experience of firing 330 mph top fuel cars, the endurance of 500 mile stock car racing and the brutal expectations of off-road racing, our new spark plugs are designed to perform from the inside out.Specs:Shorty Spark Plug: No
Resistor: Yes
Manufacturer Heat Range: 4
Electrode Core Material: Iridium
Electrode Tip Material: Iridium
Insulator Type: Projected
Spark Plug Thread Size: 14mm
Spark Plug Reach: 0.750 in.
Spark Plug Seat Style: Gasket
Wrench Diameter: 13/16 in.
Ground Strap Quantity: One
Quantity: Sold individually.

Items are shipped within one to two business days after full payment has been received.