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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

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
by Thomas

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
Took forever to get, called after weeks of waiting and the patt was in. They did ship it after I called. The 3rd part never shipped out to me
by james

Yamaha 2HP

Repair Difficulty:
Hard
Repair Time:
2 to 4 hours
It took months to receive my order. I suspect it was because of the pandemic. I can accept that but unacceptable is the lack of updates and correspondence that my order would not arrive for several months.
months ago by John
Problem fixed: Leaking carb. gas leaking.
I've not completed the repair. I purchased parts before the recent order. The first repair did not work. Likely my error because I lack a mechanic's e
xperience and knowledge. The most recent purchase from Crowley is to try again and with more parts getting updates.

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
It’s been just about two months and still haven’t received all my parts. Sent emails regarding the parts and it takes 2 weeks for a reply. They had no problem charging my credit card in one day. The web site said that they had plenty of the parts in stock too. I understand that this is during the Covid time. But ordered a different part from a local dealer and had it in a week. They didn’t even offer a refund???? So here I wait no email regarding the part just a survey on there service. Lol
by Terry

90 Yamaha

Repair Difficulty:
Easy
Repair Time:
30 to 60 mins
Waited awhile for a out stock part but good to work with
months ago by Jeffery

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
I ordered parts in August , received them In November after cancelling the order in September. I was lied to by customer service reps who said they “found” my Order and would ship it right out. Found another vendor... shipped what I needed in two days. These were not exotic parts...routine Yamaha parts
by John

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
by Cameron

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
Waited six months for a part that was listed as available. Numerous emails back and forth. Changing delivery dates. Never updated by Crowley!!! Finally gave up and had the parts they had delivered, cancelling the missing part. I will get my parts elsewhere next time.
by Paul