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Crowley Marine: serving boaters for over 40 years Crowley Marine: serving boaters for over 40 years
Most parts in stock Same day fulfillment
$3.95 shipping on all orders*
Low Price Guarantee
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Mercury/Mariner Lower Units

Mercury & Mariner Lower Units

We stock remanufactured and new gearcases for Mercury and Mariner 60 to 275 horsepower, 1979 to 2011. All of our Mercury lower units include a full one year warranty. Aside from our inventory listed here we also supply Mercury lower units directly from Mercury Marine, either new or remanufactured.

Latest Repair Stories and Reviews

Easy
Less than 30 mins
Fast service. Lower than average shipping cost.
William

Easy
Less than 30 mins
Online was good!
Jamie

Mercury 20 hp, outboard

Medium
1 to 2 hours
Crowley Marine made finding the right part for my motor very easy and at a good price. I received my order in perfect shape and in a very timely manner. I would definitely shop with Crowley Marine again. Thanks Mel Huse
Mel

Easy
Less than 30 mins
James

Easy
Less than 30 mins
Mark

Johnson 30

Medium
30 to 60 mins
I am very pleased with this store. Price and shipping cost were reasonable and the part arrived 2 days earlier than expected. Great experience!
Chuck
Gear shift cam was broken.

Easy
Less than 30 mins
Bob

Easy
Less than 30 mins
Fast delivery, part fit perfectly.
William

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.

shipping map shipping map legend

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

Our boats now have their own website!

You can find all of our new and used boats at www.crowleyboats.com

Proceed to Crowley Boats

Please bookmark (crtl+d) www.crowleyboats.com for future reference.