does E3.54 premium automotive spark plugs fit 86 mustang

Enter your car info and it'll bring up the ones you need. They have them for almost any engine, they're great.

Will E3 42 fit a 1967 cutlass 442

They have a list of compatibilities from the manufacturer, I would say these are a no, this number seems to be for newer type engines. I know the original fit the 350 GM product well.

Does this fit my 5.3l engine? On a yukon 2007

They have them for almost all engines. Enter your truck info and it'll bring up the ones you need. That's how i did it. They work great. I got new wires too. You should probably do that as well.

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⚡ Ignite your drive with power, efficiency, and unmatched durability!

UNMATCHED LONGEVITY - Backed by a 100,000-mile / 5-year warranty for worry-free driving
OPTIMIZED FOR EFFICIENCY - Enhances combustion for cleaner emissions and better mileage
PATENTED SIDE WIRE DESIGN - Proven to increase horsepower while reducing fuel consumption and emissions
DURABLE FULL SIZE CENTER ELECTRODE - Ensures consistent spark and long-lasting reliability
TRIPLE LEGGED DIAMOND FIRE ELECTRODE - Maximized heat transfer & cylinder turbulence for peak engine performance

The E3.54 Premium Automotive Spark Plugs feature a patented DiamondFIRE electrode with a unique triple-leg design that improves heat transfer and cylinder turbulence. This technology boosts engine power, reduces fuel consumption, and lowers hydrocarbon emissions. With a full-size center electrode and a robust 100,000-mile / 5-year warranty, these spark plugs deliver reliable, long-lasting performance for professional-grade vehicle maintenance.

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