Mercruiser engine service manual

[JoeSydAus]

Hi everyone, hope you can help. I recently bought my cobalt, 220S boat 2016 model with a mercury 377 engine in it. The engine serial number is 2A45 1906. Please are you able to assist to locate the service manual I’m happy to pay for it if it’s available online, but I have not been able to match the same one to match the serial number.

 

[Fun Times]

Hi everyone, hope you can help. I recently bought my cobalt, 220S boat 2016 model with a mercury 377 engine in it. The engine serial number is 2A45 1906. Please are you able to assist to locate the service manual I’m happy to pay for it if it’s available online, but I have not been able to match the same one to match the serial number.

Hi, it appears while your boat is a 2016-year model your engine may be a 2015-year model and if so then it seems you'd need a set of service manuals like seen in the following ebay link, Merc part number 90-864260T00, https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2332490.m570.l1313&_nkw=90-864260T00&_sacat=0

^ Because you appear to possibly be right near a transition year/serial number range change which can make it challenging to find the right service literature at times...To help confirm some of this, you would have to help confirm what ECM design you have mounted on the port side exhaust manifold... Does it look like this one? , Merc part number 879288T92 (555) https://www.partsvu.com/ecm-879288t...erm=4574655588935669&utm_content=All Products

Using your serial number shows the following manuals that should be used 90-864260T00 and

8M0160555

SERVICE MANUAL, ECM 555 Diagnostics, 14 pin, SM 36

Service and Support Material

Service and Support Material

www.mercruiserparts.com

Service Manual #31: 305 CID (5.0L), 350 CID (5.7L)and 6.2L (377 cid)

Mercury Marine Parts Accessories and Manuals

publications.brunswick.com

Serial number 2A451906 comes up as an MERCRUISER SEA 377 B 1.7R 6.2L MPI.

350 MAG MPI ALPHA/BRAVO - 1A623185 & Up

350 MAG MPI ALPHA/BRAVO - 1A623185 & Up

www.mercruiserparts.com

That's all mentioned only because your serial number is just below the following newer manual that covers serial number range 2A456613 and above in which would have been here at no charge if so, https://www.manualslib.com/manual/2572035/Mercury-Mercruiser.html

^ that would use the PCM 112 Controller design seen here for reference, https://www.manualslib.com/manual/2572035/Mercury-Mercruiser.html?page=363#manual

For double checking everything mentioned, you could also try contacting mercruiser customer service via Email for additional assistance using your full serial number 2A451906, https://www.mercurymarine.com/us/en/about-us/contact-us/mercruiser-customer-assistance

^ if you reach out, ask them what day the engine was built too.