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Mechman45, Marine Mechanic
Category: Boat
Satisfied Customers: 254
Experience:  30 Year Service Tech Gas/Diesel.
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I have a 1999 Mercruiser 4.3l Alpha engine, serial # XXXXX

Customer Question

I have a 1999 Mercruiser 4.3l Alpha engine, serial # XXXXX that I think needs an ignition control module. The module on it now is an 861251-1. I see new modules with P/N 861251T1 and 861252T1, which is for a Bravo outdrive but it's the same engine, and also a conversion kit with a 861251-1 module to upgrade to the newer modules. Will any of these work on my engine?
Submitted: 8 years ago.
Category: Boat
Expert:  Mechman45 replied 8 years ago.



Yes, Both the 861251T1 and 861252T1 will work.

Customer: replied 8 years ago.
Does the 861252T1 have a rev limiter like the 861251T1?
Expert:  Mechman45 replied 8 years ago.