Keep every cylinder firing cleanly with the NGK spark plug TR5AHX from the Ruthenium HX High Ignitability line. It is a direct-fit application for the 1999-2013 Chevrolet Silverado 1500 and 1999-2013 GMC Sierra 1500 with the V8-4.8L or V8-5.3L, and for the 1997-2010 Ford F-150 with the V8-4.6L. It also covers more than 300 other listed applications from Aston Martin, Buick, Cadillac, Chevrolet, Ford and GMC.
NGK developed the Ruthenium HX from its advanced OE technology as a high-ignitability plug. It pairs a patented ruthenium center electrode with patented, specialized DFE and PSPE tip designs. The plug is designed to promote a more complete fuel burn for quicker throttle response, a smoother idle and better cold starts.
Specifications:
NGK recommends the Ruthenium HX for modern vehicles that use OE DFE-type spark plugs. It is also intended for drivers who want an aftermarket plug with the latest OE technology.
Quantity per application varies by engine. For example, the 1997-1998 Buick Skylark with the L4-2.4L uses 4, the V8 Chevrolet Silverado 1500 uses 8, and the 2002-2004 Aston Martin DB7 with the V12-6.0L uses 12. The minimum order quantity is 4. See the Buyer's Guide tab for the full list of vehicles and engine codes.
Which vehicles does the NGK TR5AHX fit?
Listed applications include the 1999-2013 Chevrolet Silverado 1500 and GMC Sierra 1500 (V8-4.8L, V8-5.3L) and the 1997-2010 Ford F-150 (V8-4.6L). See the Buyer's Guide tab for all 363 applications.
Is this a Ford F-150 spark plug for the V8-5.4L?
Yes. The fitment lists the 1997-2003 Ford F-150 with the V8-5.4L, which uses 8 plugs. It also lists the 1997-2010 F-150 V8-4.6L and the 1997 F-150 V6-4.2L, which uses 6.
Does the TR5AHX come pre-gapped?
Yes, it arrives pre-gapped at .044 in (1.1 mm). Check your vehicle's service information for the specified gap before installing.
What electrode materials does this plug use?
It has a ruthenium center electrode tip over a copper core. The fine-wire platinum ground electrode tip sits on a nickel core, and the insulator is ceramic.
What are signs a spark plug may need replacing?
Misfires, a rough idle, hard starting or reduced fuel economy may indicate worn plugs, but other faults can cause these too. Diagnose the cause before replacing, and use the correct quantity for your engine.
WARNING: These products can expose you to chemicals including lead and phthalates, which are 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.
