Question about 1989 thunderbolt iv ignition module part numbers

[blue89turbo]

Hi,

My boat is an 89 scarab 23' which has a mercruiser magnum 350 in it.

Last fall I began to diagnose a no start/no run issue but ran out of time.

I am pretty sure the issue is the ignition module at this point and may want to pickup a used one from Ebay

I need the TB IV V8-22 module and my question is do the numbers stamped into the part before the "V8-22" matter?

My module reads 8J02A V8-22

I recently saw one for sale that read 3M16A V8-22

what does the first set of numbers mean?

 

[Fun Times]

Re: Question about 1989 thunderbolt iv ignition module part numbers

Hi there! Do you know the location of where the Module is mounted. On the exhaust or the distributor? There are some differences.

http://www.mercruiserparts.com/selectDocs.asp?doc_nbr=816596

http://www.google.com/url?sa=t&rct=...Gd-YFY&usg=AFQjCNElazlMjaWevNFWGfhqeVP90jy5pQ

Also do you have your engine serial number handy?

 

[blue89turbo]

Re: Question about 1989 thunderbolt iv ignition module part numbers

Hi.

The module is on the manifold.

My engine number is OC462853

Thanks

 

[Fun Times]

Re: Question about 1989 thunderbolt iv ignition module part numbers

My question is do the numbers stamped into the part before the "V8-22" matter?

My module reads 8J02A V8-22

I recently saw one for sale that read 3M16A V8-22

what does the first set of numbers mean?

They are just the vendors part number is all. Found on page 2. http://www.marinemechanic.com/merc/...lder/thnbolt-IV-module-replacements_EN_14.pdf Wouldn't worry about them.

Your original Mercruiser part number is 814295A1 now 15899A1. Both numbers can be found so be sure it says V8-22 on it. 814295A 1 | eBay 15899A1 | eBay