toolmanmike said

Some do and some are just the pan. Mopar Performance has a "Kit" for a Jeep that also works on a 904. It comes with a deep pan with drain plug, filter and extension, and a pan gasket. Even the bolts.

Think of it this way, A filter extension isn't really necessary. The fill level is the same regardless of which pan you are using. A deep pan just holds more but it doesn't change where "full" is in the dipstick.

Pan Kit P4007886AC | Mopar Online Parts

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