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Identify Mercruiser Engine

dcholley

New member
[FONT=&quot]I am trying to accurately identify the Mercruiser engine in my Sea Ray 23 Sundancer. Can someone help me decipher what this means? I know I have a 5.7/V8 Alpha One with Thunderbolt Ignition as that is what it says on the filter cover. [/FONT]
[FONT=&quot] [/FONT]
[FONT=&quot]MERCRUISER 1995 5.7L 457B100HS 200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO

Thanks in advance.[/FONT]
 
just above the starter is the tag with the serial number

Thank you. I already used the serial number to look up the information below. I just do not understand what it is saying.

MERCRUISER 1995 5.7L 457B100HS 200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO

Thanks again in advance.
 
This says your engine is a 1995 MERCRUISER 5.7Liter and your Engine Model Number is 457B100HS... And since you mentioned it above you have an Alpha Stern Dive combination to your engine accessories when looking up parts within the parts catalog from Mercruiser or here on Marine Engine.com.

Basically the following numbers just suggests what engine model types and stern drive combinations of that era (roughly between 1988-1995 in your case) may interchange parts and engine size wise though you always need to read the "notes" if available to help insure it fits your Engine type And "Stern Drive Model" type as certain things can fit/mount/run, etc. differently between what stern drive model you have of the two offered. 200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO

Your parts catalog part number looks to be 90-816596 PARTS MANUAL, 200/5.0L/LX 260/5.7L 350 Mag Alpha/Bravo
http://www.marineengine.com/parts/m...57l-gm-350-v8-19881995/0b525982-thru-0f600999
https://www.mercruiserparts.com/5-0lx-4-bbl-gm-305-v-8-1988-1995-0b
https://www.crowleymarine.com/mercury-outboard/1014.cfm?mdl=XA5NUC&q=457B100HS
 
Last edited:
This says your engine is a 1995 MERCRUISER 5.7Liter and your Engine Model Number is 457B100HS... And since you mentioned it above you have an Alpha Stern Dive combination to your engine accessories when looking up parts within the parts catalog from Mercruiser or here on Marine Engine.com.

Basically the following numbers just suggests what engine model types and stern drive combinations of that era (roughly between 1988-1995 in your case) may interchange parts and engine size wise though you always need to read the "notes" if available to help insure it fits your Engine type And "Stern Drive Model" type as certain things can fit/mount/run, etc. differently between what stern drive model you have of the two offered. 200/5.0L/LX 260/5.7L 350 MAG ALPHA/BRAVO

Your parts catalog part number looks to be 90-816596 PARTS MANUAL, 200/5.0L/LX 260/5.7L 350 Mag Alpha/Bravo
http://www.marineengine.com/parts/m...57l-gm-350-v8-19881995/0b525982-thru-0f600999
https://www.mercruiserparts.com/5-0lx-4-bbl-gm-305-v-8-1988-1995-0b
https://www.crowleymarine.com/mercury-outboard/1014.cfm?mdl=XA5NUC&q=457B100HS

Thank you boat_tech. One last question. I believe it tells me that it is 350 Cubic Inches, but does it tell me my HP. My insurance company is asking for the HP. Thanks in advance.
 
Thanks boat_tech. One last question. I believe it is telling me it is 350 cubic inch, but does it tell me the horse power? My insurance company needs to know the HP. Thanks in advance.
 
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