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Price: $108.95
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Part # 18-2381
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Price: $176.95
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Part # 18-2382
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Average Customer Review for Cap Upper Drive Unit - 18-2381 - Sierra
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by Keith from Ozark, Alabama on July 19, 2011
Haven't gotten it all put together , but im sure it will be a fine product.
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Will this fit upper?
Yes this is the cap for the upper unit. It fits Mercruiser Alpha I, except Gen II, (S/N 6225577 & Later).

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