Description

MSD iridium spark plugs will fire up your engine for optimum performance. These plugs have been engineered from the inside out for efficient combustion to create the most power possible for your setup. MSD’s proprietary design features center tips made from iridium–a super hard material that promotes the best spark as well as increased resilience. They also feature copper center cores, special ceramic material to enhance the dielectric strength of the plug housing, and machine-ground straps enhanced with Yttrium to handle the heat of your high horsepower ignition. On the street, at the track, or up and over the trails, MSD iridium spark plugs will outperform and outlive the competition.

_ASC	Holley Performance Emission Code 2: This part is legal for sale and use on Emissions Controlled Vehicles when used in accordance with the manufacturers application guide because it is a direct or consolidated replacement part. The following vehicles are considered Emissions Controlled Vehicles: 1966 and newer U.S. manufactured California Certified vehicles/1968 and newer U.S. manufactured Federally Certified vehicles/1968 and newer Foreign manufactured vehicle
_DEF	Spark Plug
_DES	Iridium Tip Spark Plug
_EXT	Iridium Tip Spark Plug; 4 Pack; Plug Type 6IR5Y; [Available While Supplies Last];
_FAB	1mm Iridium Tip
_FAB	Improves Comprehensive Drivability And Economy
_FAB	Machined Electrode
_FAB	Outlast Performance Plugs
_FAB	Proprietary Ceramic Formula
_FAB	Superior Design
_FAB	Unique Insulator Design
_FAB	Yttrium Copper Core
_INV	Spark Plug; 6IR5Y; 4-Pack
_LAB	Proposition 65
_MKT	MSD iridium spark plugs will fire up your engine for optimum performance. These plugs have been engineered from the inside out for efficient combustion to create the most power possible for your setup. MSD’s proprietary design features center tips made from iridium–a super hard material that promotes the best spark as well as increased resilience. They also feature copper center cores, special ceramic material to enhance the dielectric strength of the plug housing, and machine-ground straps enhanced with Yttrium to handle the heat of your high horsepower ignition. On the street, at the track, or up and over the trails, MSD iridium spark plugs will outperform and outlive the competition.
_SHO	Spark Plug
height	1.0
Hex Size	0.625 in.
length	3.3
length	Standard
Package Quantity	4
Projected Tip	Yes
Reach	0.4375 in.
Resistor	Yes
Seat Type	Tapered
Style	Iridium
Thread Size	14mm
WARNING CA Proposition 65	Yes
WARNING CA Proposition 65 Message	WARNING: Cancer and Reproductive Harm –
weight	0.25
width	3.4