Cummins Uprates B Series Marine Diesel Engines

—Literature Available Cummins Engine Company of Columbus, Ind., has announced uprated high-output marine propulsion ratings for its B engine models.

These new 1986 ratings are primarily for recreational and approved commercial applications.

The model 4B3.9-M is now rated 80 bhp at 2,800 rpm, up from 76 bhp at 2,500 rpm. The new rating for the 4BT3.9-M is 150 bhp at 2,800 rpm, compared with the current intermittent rating of 100 bhp at 2,500 rpm.

The biggest engine in the series, the 6BT5.9-M, has a high-output rating of 210 rpm at 2,600 rpm, up from 152 bhp at 2,500 rpm.

"These new uprates are not just the current ratings turned up," said marine marketing manager Tom Stanley. "The new higher ratings are achieved through design improvements resulting in new performance components including pistons, turbochargers, and the fuel system." Cummins high-output B models offer a great number of advantages for various boat applications, including: high-output ratings for maximum performance; lightweight yet heavy-duty durability; fuel efficient; reduced emissions, quieter operation; complete technical, service, and parts availability; 40 percent fewer parts, no special tools for servicing, low maintenance costs; high reliability from a U.S.- made product; and cost effective.

For full details and free literature on the uprated B engines, Circle 21 on Reader Service Card

Maritime Reporter Magazine, page 38,  Jan 15, 1986 Oregon

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Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.