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Spark plugs are sold individually, so multiply by the number of cylinders. The right plug is set by your engine, not by brand preference: use the plug number in your owner’s manual or the store’s vehicle lookup. The Autolite XP5325 was listed by Advance as an exact fit for the 2018 Toyota Camry 2.5L.
Spark plug price comparison
Prices are per plug.
| Part | AutoZone | Advance Auto Parts | Lower price |
|---|---|---|---|
| NGK Iridium IX spark plug BKR5EIX-11 (5464), each | $14.99NGK Iridium IX spark plug 5464 (BKR5EIX-11) | $14.99NGK Iridium IX spark plug BKR5EIX-11 (5464) | Same price |
| Autolite Iridium XP spark plug XP5325, each | $11.99Autolite Iridium XP spark plug XP5325 | $11.99Autolite Iridium XP spark plug XP5325 | Same price |
Prices checked on Nov 2, 2026 on each store's public website (store pickup prices for AutoZone at 4915 Belle Terre Parkway, Palm Coast, FL, and Advance Auto Parts at 904 N State St, Bunnell, FL 32110); store prices and availability vary by location. Prices are before tax and exclude any battery core charge or refundable deposit. Always confirm the final price and fit for your vehicle at checkout.
Iridium, platinum or copper?
Iridium plugs cost more but last much longer; many modern engines specify them with replacement intervals around 100,000 miles. Platinum plugs sit in the middle. Copper plugs are cheap and suit older engines designed for them, but they wear quickly. Do not downgrade from the type your engine calls for: the gap and heat range matter as much as the metal.
What a spark plug change costs
On a four-cylinder engine with easy access, four iridium plugs cost about $48 to $60, and the job takes an hour or so with a spark plug socket, extension and torque wrench. V6 engines often hide the rear plugs under the intake, which is when a shop starts to make sense. Run your numbers in the DIY vs shop cost calculator.
NGK Iridium IX at AutoZoneNGK Iridium IX at Advance
Frequently asked questions
On November 2, 2026, the NGK Iridium IX 5464 was $14.99 and the Autolite Iridium XP XP5325 was $11.99 per plug at AutoZone, the same as at Advance Auto Parts.How much are spark plugs at AutoZone?
Follow your owner’s manual. Many modern engines with iridium plugs specify about 100,000 miles; older engines with copper plugs need them far more often.How often should spark plugs be replaced?
Yes. Both stores’ websites and counters look up plugs by vehicle, and Advance lists exact-fit results once you enter your year, make, model and engine.Can the store tell me which spark plug fits?
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Sources
We compare auto parts on published specs, warranty terms and dated store prices, and we link every store policy to its official page. We do not run a lab, so we never claim hands-on tests we did not do. About us · How we compare · Editorial policy