Wiring Harness for Mercruiser 454 carbed
11-09-2007, 09:51 PM
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Wiring Harness for Mercruiser 454 carbed
How do I know which is the correct wiring harness to purchase? I am rerigging an older boat and have a 454 Mercruiser carbed motor. There is not much help out there on this subject that I have found. Thanks
11-09-2007, 10:17 PM
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Here's a good place to start looking. search with pictures.
Look for late 80's or early 90's. I just got a harness to convert my 502 mpi to a carb. Gives me all gauges and alarms.
Part # 84-847722A2
They run around $300 for new.
http://www.mercruiserparts.com/SelectProductLine.asp
Look for late 80's or early 90's. I just got a harness to convert my 502 mpi to a carb. Gives me all gauges and alarms.
Part # 84-847722A2
They run around $300 for new.
http://www.mercruiserparts.com/SelectProductLine.asp
11-09-2007, 11:38 PM
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Here's a good place to start looking. search with pictures.
Look for late 80's or early 90's. I just got a harness to convert my 502 mpi to a carb. Gives me all gauges and alarms.
Part # 84-847722A2
They run around $300 for new.
http://www.mercruiserparts.com/SelectProductLine.asp
Look for late 80's or early 90's. I just got a harness to convert my 502 mpi to a carb. Gives me all gauges and alarms.
Part # 84-847722A2
They run around $300 for new.
http://www.mercruiserparts.com/SelectProductLine.asp
11-10-2007, 01:14 AM
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11-10-2007, 09:15 AM
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Here's a good place to start looking. search with pictures.
Look for late 80's or early 90's. I just got a harness to convert my 502 mpi to a carb. Gives me all gauges and alarms.
Part # 84-847722A2
They run around $300 for new.
http://www.mercruiserparts.com/SelectProductLine.asp
Look for late 80's or early 90's. I just got a harness to convert my 502 mpi to a carb. Gives me all gauges and alarms.
Part # 84-847722A2
They run around $300 for new.
http://www.mercruiserparts.com/SelectProductLine.asp
11-10-2007, 09:41 AM
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On an MPI motor the are actually two harnesses. The engine charging harness and the efi harness wich pluges into the the charging harness. With a mefi 3 ecu some of the sending units wires go throuh the the ecu. You can split the two. you will need to do a little more wireing.
Not sure how to attach a picture here. I have the wireing diagram if you need one.
Not sure how to attach a picture here. I have the wireing diagram if you need one.
11-10-2007, 10:58 AM
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On an MPI motor the are actually two harnesses. The engine charging harness and the efi harness wich pluges into the the charging harness. With a mefi 3 ecu some of the sending units wires go throuh the the ecu. You can split the two. you will need to do a little more wireing.
Not sure how to attach a picture here. I have the wireing diagram if you need one.
Not sure how to attach a picture here. I have the wireing diagram if you need one.
11-10-2007, 02:01 PM
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