They should both attach to the oil pressure sensor. i don't see it it your photos but on mine it is mounted just above and to the right of the filter.
I have had no issues with mine. It is 12 years old and has never given me a problem. Starts up with one pull. :thThumbsU
I have had no issues with mine. It is 12 years old and has never given me a problem. Starts up with one pull. :thThumbsU