Iridium Spark Plugs (4-Pack) - OE 90919-01253 - Toyota Corolla, Matrix, Prius

Iridium Spark Plugs, OE 90919-01253

This is a set of four iridium spark plugs built to OE number 90919-01253, the plug Toyota used on the Corolla and Matrix from 2009 to 2013 (this same plug also shows up on the 2007-2008 Nissan Sentra, if that's what brought you here instead). We carry these because a full set of four is exactly what most four-cylinder Corollas and Matrixes need for a plug change, and buying them as a matched set beats piecing together four different plugs from four different listings.

If your Corolla's idle has gotten a little rough, you've noticed a hesitation off the line, or your mileage has quietly dropped over the last few thousand miles, worn spark plugs are usually near the top of the suspect list. They're also just a maintenance item — most people aren't replacing these because something broke, they're replacing them because it's time.

Why Iridium Instead of Standard Copper

Iridium is harder and has a higher melting point than the copper or nickel alloys used in cheaper plugs, which lets the center electrode be ground down to a much finer point without wearing away quickly. A finer electrode means a more efficient spark and, in practice, a plug that holds its gap and keeps firing consistently for tens of thousands more miles than a standard plug would. That's really the whole pitch for iridium plugs: you're not getting a dramatically different spark, you're getting one that stays good for a lot longer.

What's in the Box

Four plugs, matched to OE number 90919-01253 (also cross-referenced as Denso 3444 and Denso SC20HR11 — Denso is who actually made the original equipment part for Toyota, for what it's worth). That's a full set for a four-cylinder engine, so you shouldn't need to order more than one of these unless you're doing more than one car.

Confirmed Fitment

This plug is confirmed for the Toyota Corolla (2009-2013) and Toyota Matrix (2009-2013), and also lists as compatible with the 2007-2008 Nissan Sentra. Toyota changed plug specs across different engine families over the years, so if your Corolla or Matrix falls outside 2009-2013, it's worth checking the number stamped on your current plug rather than assuming this is the right one. The same goes if you're cross-shopping this for a different Toyota model entirely — engine displacement and plug design vary enough between Toyota's four-cylinders that a plug correct for a Corolla isn't automatically correct for a Camry or RAV4.

Installing Them

Spark plug replacement on these engines is about as approachable as engine maintenance gets — pull the ignition coil off each cylinder, pull the old plug with a spark plug socket, and thread the new one in by hand before snugging it down with a torque wrench (over-tightening an iridium plug is a real way to crack the porcelain insulator, so don't just muscle it with a ratchet). If you're doing the plugs, this is also a natural time to look at your ignition coils, since a coil that's starting to break down can produce misfire symptoms that look almost identical to a bad plug. We carry a replacement ignition coil if yours is due at the same time.

What a Worn Plug Actually Costs You

Wikipedia's spark plug article gets into the electrode geometry and gap tolerances in more depth than most people need, but the practical upshot is simple: as the electrode erodes, the gap widens, the spark gets weaker, and the engine starts compensating in ways you can feel — rougher idle, softer throttle response, worse fuel economy. None of that shows up as a warning light. It just creeps in slowly enough that a lot of people don't notice until they've already put fresh plugs in and felt the difference.

Specifications

• Type: Iridium spark plug, set of 4
• OE/OEM part number: 90919-01253
• Cross-reference: Denso 3444, Denso SC20HR11
• Manufacturer part number: A0283A0002
• Condition: New
• Warranty: 1 year

Ordering

This set of iridium spark plugs is in stock now. If you're not sure this is the right plug for your specific Corolla, Matrix, or Sentra, send us the number off your old plug or your VIN through our Request a Part page and we'll help confirm before you order. Our Warranty and Returns pages cover what happens if it's not the right fit.

While You're Under the Hood

These plugs are filed under our engine parts and Toyota collections, and you'll also find them alongside other routine service items in maintenance parts. Worth a look if you're already planning a tune-up rather than just swapping the one thing that's obviously worn.