Class 8 orders rolled on in July, climbing 81% year-over-year in what is typically the slowest order month of the year, analysts said.

Allison Transmission Inc. posted strong second-quarter gains in net income and revenue following higher demand in North America for service parts and on-highway products.

Independent engine maker Cummins Inc. notched gains in second-quarter net income and revenue, pointing to higher demand for trucks and construction equipment in North America and China as well as stronger sales to mining and oil and gas customers, according to the company.

Eaton Corp. reported net income and revenue rose during the second quarter led by gains in its electrical products segment.

The U.S. average retail price of diesel climbed 2.4 cents to $2.531 as the cost of crude broke past $50 a barrel.

The U.S. average retail price of diesel rose 1.6 cents to $2.507 as crude climbed later in the week of July 24 to its highest price in nearly two months and Saudi Arabia announced it would make additional cuts in oil production, experts said.

U.S. trailer orders shot up 51% in June and notched the seventh consecutive month of year-over-year gains.

Kenworth Truck Co. looks at the potential effect of mandatory electronic logging devices on its business from the perspectives of truck production and valuation and fleet maintenance, company executives said.

Kenworth Truck Co. says a new axle, compressed natural gas engine and air intake will be available by the end of July.