Available in 385/65R22.5 sizes from Bridgestone, Goodyear and Michelin, the tires were previously available only on all-wheel drive T370 steer axles with ratings up to 16,000 pounds.
Non-drive front steer axles rated from 16,000 to 20,000 lb and 44,000- and 46,000-lb heavy-duty tandem-drive rear axles are available from Meritor and Dana. The PACCAR PX-9 engine in the T370 is available with ratings up to 350 horsepower and 1,150 lb-ft of torque.
The Kenworth T370 is also now available with 4.9-inch fender extensions, which reduce road spray from the wide base tires.
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