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Crowley Marine: serving boaters for over 50 years Crowley Marine: serving boaters for over 50 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 25

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
Checked numerous places online other marine places, ebay,amazon and none compared to these prices. Along with fast response to my questions to make sure I got the right part, I ordered it and it came quick and got me back on the water. Thanks again.
by Daniel

Order Review

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

Order Review

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

1970 4hp Evinrude

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
by Barry
Problem fixed: Prop clutch shattered
Went moose hunting and brought the old 4 hp for the canoe. started down the river and hit some weeds. Clear the weeds and it wouldn’t drive. Paddle ba …
ck to camp and found the clutch in pc,s when I took the prop off. Assembled the pieces together and found the shear pin hole oversize allowing the clutch to rock and not drive properly. Put a pc of cloth hanger in between the shear pin to tighten up the whole and put it together. Work like a charm for the week. Found new clutch at Crowleys just like that when I got home. Installed. And ready for this season.

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
confident / fast/ very nice experience
by Hubert

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
Excellent !
by Roberto

1971 Evinrude 6hp Fisherman

Repair Difficulty:
Medium
Repair Time:
2 to 4 hours
EXCELLENT - - I have purchased from Crowley Marine in the past and their products have always been top notch. They ship immediately and package items with care. They are true Professionals. I would not be able to keep my old items running smoothly without them. Thanks -
months ago by Wayne
Problem fixed: Rebuilt carburetor & recoil starter. Replace fuel pump & filter unit. Replaced throttle cam.
Accomplished all necessary repairs using replacement parts ordered from Crowley Marine. I have been using this wonderful ole trolling motor for over 4 …
8 years now. It has done me no wrong. The last fishing trip it began to act up. I was on a 2 week fishing trip to Montana so a little JB weld got me through the trip. It was time to finally do a little repair work on the old gal. I rebuilt the carburetor and the recoil starter spring and upper unit. The fuel pump was leaking- JB Weld closed it up until I could replace with a new unit. The throttle cam was worn to the point it wasn’t allowing full throttle. A new cam fixed the problem. All parts were ordered from Crowley Marine. Getting old replacement parts is becoming harder and harder to find. Crowley Marine really helps in locating necessary replacement components.

Order Review

Repair Difficulty:
Easy
Repair Time:
Less than 30 mins
Price is fair, service is fine, but reported stock is not accurate making for slow delivery
by Todd

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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You can get a rough idea of standard transit times from the map above.