No one buys new IP's from the dealer. Just order a rebuilt one and swap them out, rebuild IP's are like $600ish. I'm sure Phil could have one on your doorstep in 48 hours or less if you are really stuck.

Where is the oil leaking from? If its the bottom cover you do know that you can just remove that cover and replace that gasket. Its like a $2 gasket, pita to get at I have been told.

Their is probably an O ring around that sensor.

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2006 CL500
2009 C300 4matic
1969 280SE
2023 Ram 1500
2007 Tiara 3200