Mariner, powerhead, identification

J warren

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Jun 29, 2023
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I have a 2 L mariner, powerhead serial number D050422 on the freeze plug and OD 123391 on the transom mount… checking to see if it is actually a 2 L Bridgeport powerhead if anyone could help me that would be greatly appreciated??
 

Fun Times

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0D050422 = 1991 MARINER 2.0L 150 XL, model number 7150422YD.

0D123391 = 1992 MERCURY 2.5L 150XR6 ELPTO, model number 1150453MD
 

Dukedog

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I have a 2 L mariner, powerhead serial number D050422 on the freeze plug and OD 123391 on the transom mount… checking to see if it is actually a 2 L Bridgeport powerhead if anyone could help me that would be greatly appreciated??
yeah, tha L, you mean 20" or 2 liter?.. replaced tha 2.5 xr6 power had with a plain jane 2.0......
cowls/decals don't mean much now days....
 

J warren

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Jun 29, 2023
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Was hoping it may have been a real Bridgeport, but I guess not according to the serial numbers
 

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jimmbo

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It is a Design of of the Ports, which improves the Volumetric Efficiency of the Engine
 

Dukedog

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this thread gives a little infomation into tha high performance side of merc in tha 80's and very early 90 models.... '91 everything changed (parts wise).

 
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