How often should these plugs be replaced?

Iridium plugs typically last 60,000 to 100,000 miles in normal driving. Follow your owner's manual interval, which is usually shorter for severe use like towing or short trips.

Will these fit my Dodge Grand Caravan?

Fitment is specific to certain engines and model years, so confirm your engine size and year against the 9440 application list before ordering. The four-pack covers a four-cylinder engine; V6 models need six.

Do I need to gap them before installing?

They come pre-gapped for the listed applications. Check the gap with a gauge anyway, and avoid prying on the iridium tip, which can crack.

How do these compare with NGK or Denso iridium plugs?

All three use iridium tips with similar service life. Champion is usually the lower-cost option, while NGK and Denso have wider vehicle coverage and more cross-reference data.

Four Champion 9440 iridium spark plugs. No tools, boots or anti-seize are included.

Should I use anti-seize on the threads?

Champion recommends installing dry unless the manual says otherwise, since anti-seize can change torque readings. Use a torque wrench to the spec for your engine.