Yep that's what I bought. Genuine Mopar OEM Part # 56041018AD Type 1 in the photo attachement.

 

Did you have the same problem after the install?

 

Well, I'm in to my second day of the "type 1" pictured earlier in the posts, problem free! For whatever reason the original owner replaced the original with the longer stemmed "twist in" type and due to it's incorrect fit developed a seal leak or ? allowing the sensor to perform incorrectly causing the surging etc..I now have my old truck back and can cruise with confidence.