Wire Lead Question

[zack_13]

Can someone please tell me what the difference is between
these 2 wire leads for 1991 200TXRP for the remote oil tank.
Which one goes to the engine?
How long are they?

Part #'s

6E5-85721-10-00

6E5-82521-03-00

[boats.net]

6E5-82521-03-00 is the short one on engine that connectes to engine oil tank sender.
6E5-85721-10-00 connects to remote oil tank sender and to engine and is 26ft long.