DENSO U-Groove Spark Plug: OE Performance, K16R-U11, 3120
In stock
$6.49
Listed as compatible with this vehicle by the retailer feed.
Check price2003 Lexus IS 300 Spark Plugs
9 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
NGK Standard Nickel Spark Plug (BKR6ES-11): Reliable OE Performance, 5553
In stock
$6.99
Listed as compatible with this vehicle by the retailer feed.
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NGK V-Power Nickel Spark Plug (BKR6E-11): Reliable Ignitability & Performance, 2756
In stock
$7.49
Listed as compatible with this vehicle by the retailer feed.
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Champion Iridium Spark Plug RC10WMPB4 - Maximum Performance & Longevity, 9002
In stock
$11.99
Listed as compatible with this vehicle by the retailer feed.
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DENSO Double Platinum Spark Plug: OE Performance, lasts 60K+ Miles, PK16R11, 3134
In stock
$12.99
Listed as compatible with this vehicle by the retailer feed.
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DENSO Iridium Long-Life Spark Plug: OE Performance, SK16R-P11, 3353
In stock
$13.79
Listed as compatible with this vehicle by the retailer feed.
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NGK Laser Iridium Spark Plug (IFR6T11): Superior Performance & Durability, 4589
In stock
$17.99
Listed as compatible with this vehicle by the retailer feed.
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NGK Laser Platinum Spark Plug (BKR6EP-11): High Ignitability & Longevity, 2978
In stock
$18.99
Listed as compatible with this vehicle by the retailer feed.
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NGK Ruthenium HX Spark Plug (FR6BHX-S): High Ignitability & Durability, 95159
In stock
$19.49
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.