ok. K is model year 2019, R3 is the model S550 Mustang, Z indicates a service part. Still trying to get more info. Odd that it indicates a 2019 part. Must belong to the general S550 family and not specific to DCT trans. The plant probably has no way to ship a single part that is not a...
Being in the Engineering Change Mgt business for years for the OEM's my opinion is to wait it out.
Part number changes are common. Whatever happened to the harness they decided to purge the old parts and create a "clean point" with a new harness part number. This way they have complete...