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MSD®
37224 Spark Plug, Set of 4, Iridium Series

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$47.99
OR
Manufacturer #37224
Vehicle Info Required to Guarantee FitAdd Vehicle
Qty:
1
489EA277-E7FF-4435-978F-6756E2AE109D@1x
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Highlights

Brand:
Notes:
5/8 in. hex size; Projected insulator type; Tapered seat style; Iridium power electrode configuration
Spark Plug Code:
6IR5Y
Electrode Tip Material:
Iridium Electrode Tip
Quantity Sold:
Set of 4
Warranty:
1-year MSD limited warranty
Prop 65 Warning:

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Additional Promotions:
Holley Brands IRS Tax Sale
Specialty Part:
Performance Part by JCW
Electrode Core Material:
Copper Electrode Core
Heat Range:
5
Product Fit:
Direct Fit
Reach:
11 mm Reach
Recommended Use:
Performance
Series:
Iridium Series
Thread Size:
14 mm thread size

Vehicle Fitment Information

Vehicle Name
Submodel
Engine
Fitment Information
1970 Chevrolet Biscayne
Base
8 Cyl 6.6L
-
1970 Ford Falcon
Base
8 Cyl 7.0L
-
1970 Ford Falcon
Futura
8 Cyl 7.0L
-
1970-1971 Ford Mustang
Boss 302
8 Cyl 5.0L
-
1970-1972 Ford Mustang
Base
8 Cyl 5.0L
-
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Product Information

MSD SPARK PLUG

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.

  • Lower voltage Requirements for longer coil life
  • Improved durability and maximum performance
  • No hassle to install
  • Cutting-edge technology
  • Has undergone rigorous testing
  • Offered from a wide range of products tailored to specific needs
  • Built to last

From ignitions to distributors, starters to coils, from spark plugs to plug wires, there’s an MSD product to help you get the most out of your engine.

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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.

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