Options for Replacing Your Sterndrive

Learn more about repowering your boat with a new or used sterndrive engine.

Options for Replacing Your Sterndrive

Volvo Penta offers a two-year warranty, extending to three if part of a repower. (Courtesy Volvo Penta/)

It’s not uncommon, but it sure is a downer. You’ve detonated your MerCruiser or Volvo Penta sterndrive, and now you’re faced with the question of rebuilding or replacing. If it’s not repairable, not all is lost.

Thanks to the sterndrive’s popularity over the decades, there are thousands of replacement drives—new, aftermarket, rebuilt and used—readily available. Depending on your brand and drive model, the price tag might be less than you think.

Factory-new drives, such as this MerCruiser Bravo Three, can be purchased.
Factory-new drives, such as this MerCruiser Bravo Three, can be purchased. (Courtesy Mercury Marine/)

Mercury MerCruiser

Factory-new is a great option if cost is not a concern. You get a brand-new drive with a warranty. Mercury MerCruiser offers its Quicksilver line of replacement drive units, which are factory-built and offer a three-year warranty. A new replacement Alpha One Gen II drive retails for $5,825, while a Bravo Three retails for $9,114. These prices are for complete (upper and lower) drive assemblies, but do not include shipping or installation costs.

The Quicksilver line of Mercury drives is a complete business unit dedicated to repowering boats previously propelled by any engine and drive, not just MerCruiser. The Quicksilver drives are factory-new, not rebuilt or remanufactured. Dealers sell Quicksilver Alpha One Gen II drives for $3,264—just a bit more than half the cost of a new replacement. This is an attractive option to get back on the water with a factory-quality drive while saving substantially over the cost of a new one. Most dealers choose this route rather than to rebuild drives because the retail pricing is very competitive.

Quicksilver drives are new replacement drives built by Mercury Marine.
Quicksilver drives are new replacement drives built by Mercury Marine. (Courtesy Mercury Marine/)

Sterndrive Engineering Inc. (SEI, sterndrive.cc) offers its own designed and manufactured replacement sterndrives and outboard gear cases. The company has earned an excellent reputation, with a three-year, no-fault warranty. Over the years, many have tested this warranty (including this writer), and it’s real: SEI will replace any of its units that fail, at no cost to the consumer. Of course, the consumer must pay to have the unit removed, boxed and shipped both ways, then reinstalled and checked—but these costs are minor relative to the cost of replacing a drive.

A SEI replacement for a MerCruiser Alpha One Gen II (complete drive unit, upper and lower combined) costs $1,595. For the Bravo One, SEI offers only the lower unit, not the upper drive. This lower unit sells for $995. SEI does not currently offer a replacement for the Bravo Three drive.

For high-performance and racing applications, the Bravo Shop (bravoshop.net) sells and provides remanufactured complete (upper and lower) Bravo drives, as well as its own Bmax high-strength drive unit for higher-horsepower and performance engines.

Single or twins; cruiser, racer or fish boat; fresh or salt water—there is a solution to worn-out sterndrives for all.
Single or twins; cruiser, racer or fish boat; fresh or salt water—there is a solution to worn-out sterndrives for all. (Courtesy Volvo Penta/)

Volvo Penta

For Volvo Penta drives, replacement choices include a new factory drive or a rebuilt unit. Factory remanufactured drives are not available. New Volvo Penta drives come with a two-year warranty—extendable to three—if installed by a certified dealer. Boatwrench (boatwrench.com), a rebuilder, typically stocks over 70 rebuilt drives. As with MerCruiser, the replacement cost for a new Volvo drive is quite high. For Volvo’s most popular DPSM dual-prop drive, for example, the retail price is $9,800. Boatwrench’s price for a reman is $6,500. For the Volvo DPE (diesel engine) drive, Volvo’s price for a new replacement is $16,110, while a Boatwrench reman unit costs $7,500. Boatwrench prices include the exchange of your old drive; otherwise, it assesses a $1,000 core charge. Comparing warranties, Volvo Penta offers one year on drives, increasing to three years if installed as part of a full repower. Boatwrench drives come with a two-year warranty.

In Boatwrench’s case, its remanufacturing regimen for any drive is rigorous and exacting. The company completely disassembles a used drive, inspects and measures all components, then reassembles with new gears, bearings and seals. Most are assembled with a used (but inspected and checked) drive shaft and propeller shaft. The exterior of the drive gets body-worked and repainted with zinc chromate primer, sealer primer and enamel finish.

Older and Obsolete Drives

You might recall that OMC (Johnson/Evinrude) offered sterndrives for many years, as did Yamaha and others. Though it’s tough to find a dealer or technician today that will service one of these, both Mercury (through its Quicksilver line) and SEI offer conversion transom plates, assemblies and drives that will update and modernize the propulsion-system package for those with obsolete sterndrives.

Read Next: Top Three Reasons to Replace Your Sterndrive

Bottom line: No matter its make, your sterndrive can be replaced, and your enjoyment of and confidence in your boat restored.

Source : Boating Magazine More   

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Kairos by Oceanco and Pininfarina – stunning and timeless superyachting

Phil Draper reports on Kairos a 90m concept from Oceanco and Pininfarina which debuted at the Monaco Yacht Show, designed to operate much of the time with zero environmental impact.Oceanco’s latest concept Kairos takes ‘sustainable yachting’ to a whole new level. This 90m what-could-be vision debuted at the Monaco Yacht Show earlier this week. The design reimagines how space aboard can be utilised and how sustainable yachting can be and how it can develop into the future for right-minded owners. Kairos is the result […] This article Kairos by Oceanco and Pininfarina – stunning and timeless superyachting appeared first on Motor Boat & Yachting.

Kairos by Oceanco and Pininfarina – stunning and timeless superyachting

Phil Draper reports on Kairos a 90m concept from Oceanco and Pininfarina which debuted at the Monaco Yacht Show, designed to operate much of the time with zero environmental impact.

Oceanco’s latest concept Kairos takes ‘sustainable yachting’ to a whole new level. This 90m what-could-be vision debuted at the Monaco Yacht Show earlier this week. The design reimagines how space aboard can be utilised and how sustainable yachting can be and how it can develop into the future for right-minded owners.

Kairos is the result of a creative huddle between the Dutch superyacht builder’s ‘NXT’ think tank, the naval architects at Lateral in the UK, and that Italian design and engineering giant Pininfarina, which has not only been responsible for some of the world’s most iconic car creations of the past nine decades, but has also been regularly making waves in the marine industry, not least recently working with Princess on its foiling R35 and more radically styled X Series motor yachts.

In terms of onboard spaces, Kairos proposes an alternative interaction between guests and crew, especially less segregation. All the usual features will be there, of course – everything from palatial cabins, lounges and dining areas inside and out, not to mention balconies and beach clubs, helicopter capabilities and garages packed with tenders and toys – but at the heart of the yacht think Italian ‘piazza’, an open meeting space with views to the sky.

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Everywhere else the use of glass opens up share spaces in fabulous new ways. Think walking down a sidewalk in New York and looking up at the skyscrapers and sky, says Kevin Rice, Pinifarina’s chief creative officer.

Walk through this boat, he says, and you will look up and see the decks above and the mast towering above. Then look to one side and you see the sea and to the other family space or a restaurant. This is the special thinking behind the very special Kairos experience.

An important starting point in the creative process was to not think about boats, says Rice, because boats are about moving from somewhere to somewhere.

A key goal with this project was to pause the conventional passage of time, to create a timeless environment, where various aspects of life can co-exist – work, family and play – and regardless of where the yacht happens to be in the world.

Is this just another whacky concept? Oceanco is emphatic it represents an authentic step forward, meaning what is proposed could actually be built today with present technologies.

Instead of suggesting an infeasible net zero environmental impact all of the time, which is not possible presently, the Kairos ‘E-Hybrid’ solution could realistically operate for 70% of the day with zero impact, says James Roy, managing director at Lateral.

Perhaps more important still is this design’s ability to adapt as technology and expectations evolve, especially as regards developments in battery technology. Such things will become increasingly important now as cruising grounds begin to restrict access for polluting vessels. Roy says, while they aspire to “total zero” which isn’t yet possible, they can already deliver “local zero”.

Although capable of becoming a reality, Kairos has not been developed with any one client in mind. Rather it is intended to appeal to more people and probably more younger people than Oceanco’s traditional gigayacht clientele, and especially those with a genuine interest in sustainability and perhaps that coming to yachting without the usual preconceptions. It is about fostering the right sort of conversations.

Kairos incidentally is a Greek word and effectively translates as ‘timely’.

This article Kairos by Oceanco and Pininfarina – stunning and timeless superyachting appeared first on Motor Boat & Yachting.

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