Ford F-150 Spark Plugs: Pulstar for 1997–2003 4.6L & 5.4L V8 Trucks
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Looking for Pulstar spark plugs for your Ford F-150? If you drive a 1997–2003 F-150 with a 4.6L or 5.4L V8, Pulstar IAD1H10 spark plugs are the right replacement part.
For 1997, 1998, 1999, 2000, 2001, 2002, and 2003 Ford F-150 trucks with the 4.6L or 5.4L V8, choose Pulstar IAD1H10.
Why choose Pulstar for your next tune-up?
Looking to get more from your engine? Pulstar has published third-party test coverage worth considering. DSPORT magazine compared fresh OE-spec spark plugs with Pulstar PlasmaCore BE1H10 plugs in a stock Honda engine. With no other modifications or adjustments, DSPORT reported an increase from 86.27 to 89.25 wheel horsepower and from 89.06 to 92.40 lb-ft of torque: gains of 2.98 wheel horsepower and 3.34 lb-ft. Read DSPORT’s full Pulstar test and results.
Find the right spark plug for your F-150
Start with your truck’s model year and engine size. Then check the specified NGK part number in a current application catalog. If the complete number is TR55, our chart points you to Pulstar IAD1H10.
Buying for a different engine or year? Don’t choose by the F-150 badge alone. This guide does not establish fitment for the 4.2L V6, later 5.4L engines, 5.0L V8s, or EcoBoost engines.
Replacing plugs on an older F-150?
Before you order, have your model year, engine size, and specified plug number handy. If your truck has an engine swap or other modifications, tell your installer so they can check the actual engine rather than relying on the vehicle’s original application.
Use the vehicle and spark plug manufacturer's installation instructions for gap, tightening, and service requirements. A cross-reference identifies a replacement reference; it does not mean every plug has identical installation instructions or replacement intervals.
Ready to choose your Pulstar plugs?
For a 1997–2003 F-150 4.6L or 5.4L V8 with a confirmed NGK TR55 application, shop the Pulstar IAD1H10 Fine Wire Iridium Spark Plug. If you’re unsure, ask us to check your year, engine, and specified plug number before you buy.
Application sources
NGK TR55 listing for 1997–2003 Ford F-150 4.6L and 5.4L trucks. Pulstar reference: our March 2024 NGK-to-Pulstar cross-reference chart.