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Cooper Tire & Rubber Co. said second-quarter earnings at its Cooper Tire division fell to $12 million, or 18 cents a share, from $19 million, or 30 cents, a year ago.

Goodyear Tire & Rubber Co. said its second-quarter profit as sales jumped 24% to a quarterly record.

Two truck component makers reported lower second quarter profits late last month.

It takes a significant effort on the part of suppliers and customers alike to ensure that strains on key supplier-customer relationships are avoided, and there is a common focus on the contributions that create value.

Engine maker Cummins Inc. said Tuesday its second-quarter profit doubled to a record on higher sales, and it boosted its earnings outlook for the full year.

Bendix Commercial Vehicle Systems said late Monday it will acquire Iteris Inc.’s vehicle sensors business, including Iteris’ lane departure warning system.

Truck component supplier Meritor Inc. rearranged its executive positions in the wake of the departure of Chief Operating Officer Carsten Reinhardt, who left the Troy, Mich., manufacturer last week.

Tom Linebarger, who will become Cummins Inc.’s next chairman and CEO on Jan. 1, said the company is well positioned to meet the competition of North American truck makers offering “vertically integrated” packages of their own trucks and engines.

The Manufacturers of Emission Controls Association said its members sold 24,640 diesel engine retrofit devices in 2010.

The Manufacturers of Emission Controls Association said even though its members installed more than 24,000 diesel retrofit devices last year, more government incentives are needed to upgrade the older diesel engines in operation.