MSD Performance 37204 Spark Plug, 6IR4Y, 4-Pack

Iridium Tip Spark Plug; 4 Pack; Plug Type 6IR4Y; [Available While Supplies Last];

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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.

• Proprietary Ceramic Formula
• Unique Insulator Design
• Yttrium Copper Core
• Machined Electrode
• 1mm Iridium Tip
• Outlast Performance Plugs
• Improves Comprehensive Drivability And Economy
• Superior Design

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Application Summary:

Year	Make/Model
1980-1982	American Motors Concord
1981-1983	American Motors Eagle
1980-1982	American Motors Spirit
1973-1975	Buick Apollo
1971-1973	Buick Centurion
1973-1985	Buick Century
1967-1975	Buick Electra
1977-1985	Buick Electra
1970-1975	Buick Estate Wagon
1978-1979	Buick Estate Wagon
1967	Buick Gran Sport
1970-1972	Buick GS
1968-1969	Buick GS 350
1968-1969	Buick GS 400
1970-1972	Buick GS 455
1968-1985	Buick LeSabre
1973-1987	Buick Regal
1967-1975	Buick Riviera
1977-1985	Buick Riviera
1991	Buick Roadmaster
1977-1980	Buick Skyhawk
1967-1972	Buick Skylark
1975-1983	Buick Skylark
1968-1969	Buick Special
1968-1972	Buick Sportwagon
1967-1970	Buick Wildcat
1991-1992	Cadillac Brougham
1980-1982	Cadillac DeVille
1981-1982	Cadillac Eldorado
1980-1982	Cadillac Fleetwood
1993	Cadillac Fleetwood
1970-1982	Checker Marathon
1971-1972	Chevrolet Bel Air
1981	Chevrolet Bel Air
1971	Chevrolet Biscayne
1971	Chevrolet Blazer
1971	Chevrolet Brookwood
1976-1986	Chevrolet C10
1970-1971	Chevrolet C10 Pickup
1971	Chevrolet C10 Suburban
1976-1986	Chevrolet C10 Suburban
1976-1986	Chevrolet C20
1971	Chevrolet C20 Pickup
1971	Chevrolet C20 Suburban
1976-1977	Chevrolet C20 Suburban
1979-1986	Chevrolet C20 Suburban
1976-1980	Chevrolet C30
1983-1984	Chevrolet C30
1971	Chevrolet C30 Pickup
1971	Chevrolet Camaro
1975-1992	Chevrolet Camaro
1971	Chevrolet Caprice
1976-1993	Chevrolet Caprice
1982-1983	Chevrolet Celebrity
1971	Chevrolet Chevelle
1980-1983	Chevrolet Citation
1971	Chevrolet Corvette
1976-1982	Chevrolet Corvette
1984	Chevrolet Corvette
1988-1989	Chevrolet Corvette
1970-1973	Chevrolet El Camino
1976-1987	Chevrolet El Camino
1976-1984	Chevrolet G10
1971	Chevrolet G10 Van
1976-1984	Chevrolet G20
1971	Chevrolet G20 Van
1975-1984	Chevrolet G30
1971	Chevrolet G30 Van
1971	Chevrolet Impala
1976-1985	Chevrolet Impala
1975-1986	Chevrolet K5 Blazer
1970-1971	Chevrolet Townsman
1976	Chevrolet Vega
1980-1983	Chrysler Cordoba