Mazda CX-9 3.8L Spark Plugs

Catalog-listed plug, cross-brand equivalents, gap, and where to buy for the Mazda CX-9 3.8L.

Denso · Catalog-Listed
ITV22
MetalIridium
Gap—

Listed in a manufacturer plug catalog — confirm against your owner's manual before buying.

The Denso ITV22 is a 14mm thread, 19mm reach, gasket seat, heat range 22, iridium electrode spark plug. These specifications are decoded from the Denso part number and determine which plugs it safely cross-references to — a valid equivalent must match the thread, reach, seat and heat range.

Spark plugs that fit the Mazda CX-9 3.8L

PlugMetalGapBuy
Denso ITV22 Iridium— Buy

Frequently asked questions

What spark plug does a Mazda CX-9 3.8L use?
A manufacturer catalog lists the Denso ITV22 (Iridium), gapped at the factory spec. Listed in a manufacturer plug catalog — confirm against your owner's manual before buying.

How many spark plugs does a Mazda CX-9 3.8L need?
Check your owner's manual for the exact count for this engine.

What is the spark plug gap for a Mazda CX-9 3.8L?
See the underhood emissions label — always confirm against the label or manual before installing.

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