I'm not sure what's the thread size for the stock plug, I think is metric and smaller than 1/2 inch. The 4.0 engine used on wranglers and Cherokees uses an 1/2 inch plug, so rethreading to 1/2 would allow using the same fumoto valve that was made for those engines, may be a fumoto f102, but you'll need to check the charts to make sure. Also, use some plumbing tape.
_________________ 2005 kj CRD, samco, suncoast tc, provent, Kennedy lift pump, GDE ECO full torque, 2nd gen filter head, 245/70/16 a/t tires, mopar light bar, fumoto oil valve, OEM Skid Plates, ARB Front bumper and HD OME, tru cool LPD47391 40k GVW tranny cooler (stock cooler delete), FF Dynamics e-fan and shroud, rocker arms replaced, HDS2 190F thermostat.
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