Brunswick Corp. (BC) is expanding its payment-protection plan to include nine more of its boat brands, saying it is the first large-scale payment program by a marine manufacturer in an attempt to ease consumers' worries about rising unemployment to spur sales.

The effort, which includes making monthly payments for purchasers if they lose their job, follows similar promotions by auto makers including Hyundai Motor Corp. (HYMLY), Ford Motor Co. (F) and General Motors Corp. (GM).

Brunswick's program comes as the recreational outdoor and indoor products maker has recorded a string of quarterly losses, resulting in shuttered plants and slashed jobs in a series of restructurings.

The company expanded the promotion from three of its brands to 12, under which it will make monthly payments of as much as $500 for up to nine months for eligible buyers who lose their jobs. The promotion continues through the Fourth of July weekend and customers must take delivery by July 6.

Shares recently were down 2.5% at $4.63. The stock is down 70% in the past year.

-By Tess Stynes, Dow Jones Newswires; 201-938-2473; tess.stynes@dowjones.com