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Hi All.
Got a 1988 Sea Ray w/4.3 Merc Thunderbolt IV.
I'm replacing the thermostat, and am a bit confused by what I received in my kit versus what I see in Merc Service Manual #7 in the pics.
I ordered Sierra Kit which contains 18-3551, the correct thermostat for my engine based upon what...
Hi All. First timer here - though I've been reading these forums now for a few months. Great information - thanks for providing such a place.
Bought a 1988 Sea Ray Seville Bow Rider with Merc 4.3 and Thunderbolt IV. Previous owner told me he didn't have a chance to use it at all this...
