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NGK's ILZKR7B-11S is an iridium-tipped spark plug sold here as a set of four, matching Honda/Acura OEM part 12290-R48-H01. It fits several Honda and Acura four- and six-cylinder engines, including the 2.4L Accord and TSX and the 3.7L TL, MDX, RL and ZDX. Iridium center electrodes resist wear longer than standard nickel plugs, so they hold their gap over a long service interval. For owners doing a tune-up, a matched set of four from a known plug maker is the straightforward choice against generic or no-name replacements.
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Lowest price we've seen: $16.99 on Nov 13 at Amazon. Tracked across 1 store since Nov 13.
Owners of Honda and Acura four- and six-cylinder cars generally report smooth idle and clean running after fitting these plugs. Most criticism centers on buying the wrong count for a V6 or receiving plugs that look counterfeit.
This is a set of 4 NGK iridium spark plugs, NGK part number ILZKR7B11S (stock number 5787). It matches OEM number 12290-R48-H01 and is a new replacement for the vehicles listed below.
The plugs fit select Acura and Honda models with V6-3.7L, L4-2.4L or similar engines, as listed in the compatibility details.
