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Crowley Marine: serving boaters for over 40 years Crowley Marine: serving boaters for over 40 years
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Mercruiser Stern Drives

MerCruiser Stern Drives

MerCruiser stern drives are the result of over 40 years of refining and reengineering the world’s best outdrives. And over 40 years spent as the unquestioned technology, performance and propulsion leader. MerCruiser stern drive technology is designed to maximize your experience–whether through ease of maintenance or trouble-free operation.

MerCruiser Alpha One Gen I Sterndrives

Mercruiser Alpha One Gen One stern drives were produced from 1984-1990. Improved gear design and bearing arrangements made the Alpha One drive stronger than its "R" Drive predecessor. These Mercruiser Alpha One's come in four different gear ratios: 1.5:1, 1.65:1, 1.84:1 and 1.98:1. The lower housings for all of the Alpha One outdrives use the same lower unit as the gearing is changed in the upper housing.

MerCruiser Alpha One Gen II Sterndrives

These are an updated design on the first Alpha Ones which were manufactured by Mercruiser from 1991-2003. The complete Mercruiser sterndrives come in five gear ratios: 1.47:1, 1.61:1, 1.81:1, 1.94:1 and 2.0:1. The 2.0:1 gear ratio was only available from 1998-2003 and also has a Mercruiser lower unit with a ratio of 2.0:1 as opposed to the standard 1.62:1.

Latest Repair Stories and Reviews

Yamaha 70 hp

Repair Difficulty:
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Repair Time:
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Great
by Maynard

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Repair Difficulty:
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"Great"
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Problem fixed:
Ordered parts-great service,

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Correct parts, competitive pricing, met or beat shipping date, split order as requested so in stock items would ship immediately.
by Maurice

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Repair Difficulty:
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I will buy again from them. Was missing 2 pieces in my order and had absolutely no problem getting the problem fixed.
by Kevin

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Easy
Repair Time:
Less than 30 mins
by david

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Repair Difficulty:
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Excellent customer service great prices!
by CHRISTOPHER

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Repair Difficulty:
Easy
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FANTASTIC!
by Terry

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Repair Difficulty:
Easy
Repair Time:
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verry good
by Marc

Flat $3.95 Shipping on ALL parts orders

We offer shipping flat $3.95 shipping on ALL parts orders. (Complete Engines, Lower Units and Sterndrives excluded). In addition orders over $89 have reduced cost express shipping available in checkout.

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