I'm having to replace the intake manifold on my 5.2l. Grrrr. Broken bolt at thermostat hell!! Anyways.. My question is what is the difference between manifold p/n 53031568 & p/n 53031568AB? I ordered a replacement intake and received the -AB part. Can I still use this intake manifold?

 

Yep. It is just a minor revision, if anything at all. Transfer all your sensors and such to the new manifold, stick it on there, and smile.

 

The last letter in a chrysler part number only identifies manufacturer of the part to them. If the number is the same, it's the same.