I would try to source the engine harness from Cummins. For an ECM, you might try a heavy duty salvage company like LKQ Truck parts. Good luck!
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Well, there are a couple of wiring harnesses you will need in addition to the ECM. Not positive but the transmission control module may be part of the engine one or separate. Another thing, better have some smelling salts on hand. These parts are not cheap. May cost you more than you paid for the engine. Here are some of them. I say some because Cummins only provides the ones for engine operation. You may need to contact an end user like Freightliner to get some of the wiring. Even the accelerator pedal is electronic.
First off is the engine control module (ECM). That is part #16 in this diagram. This also shows all the various sensors mounted on the engine. Part #16 is Cummins number 4899685. That part shows to be not available. Not a good beginning to the search. You may have to contact Cummins with your serial number to get the ECM. Price on those parts used to range from around $2000 to over $5000. There are companies who rebuild those and they usually charge around $1200.
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In combination with the ECM there is also a cooling unit for that part. Cummins part 4897682 which is serviced as part 4025104. That little part may cause heart failure if it is missing. Cummins price $1712.24. Here is the diagram for that part. That price is just for part #5.
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Here is the diagram for the main ECM wiring harness that links it to all those sensors. Original part number was 4897696. Last update shows part 3969064. All these part numbers show to be obsolete with no replacement. Sounding worse be the minute. There is a harness 4897696 for sale on ebay for $169.72. Cummins 4897696 Harness,Wiring | eBay I'd say that is the bargain of the century. Seems like the original price of that part was like $1500.
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Wiring for the transmission, engine gauges, and accelerator etc. will have to come from someone like Freightliner. These prices I've listed are just for the main part item. Does not include any of those small parts. This is why you generally avoid one of these engines which is missing the wiring.
First off is the engine control module (ECM). That is part #16 in this diagram. This also shows all the various sensors mounted on the engine. Part #16 is Cummins number 4899685. That part shows to be not available. Not a good beginning to the search. You may have to contact Cummins with your serial number to get the ECM. Price on those parts used to range from around $2000 to over $5000. There are companies who rebuild those and they usually charge around $1200.
In combination with the ECM there is also a cooling unit for that part. Cummins part 4897682 which is serviced as part 4025104. That little part may cause heart failure if it is missing. Cummins price $1712.24. Here is the diagram for that part. That price is just for part #5.
Here is the diagram for the main ECM wiring harness that links it to all those sensors. Original part number was 4897696. Last update shows part 3969064. All these part numbers show to be obsolete with no replacement. Sounding worse be the minute. There is a harness 4897696 for sale on ebay for $169.72. Cummins 4897696 Harness,Wiring | eBay I'd say that is the bargain of the century. Seems like the original price of that part was like $1500.
Wiring for the transmission, engine gauges, and accelerator etc. will have to come from someone like Freightliner. These prices I've listed are just for the main part item. Does not include any of those small parts. This is why you generally avoid one of these engines which is missing the wiring.
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