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Cummins Engine Co. recently introduced a 300-horsepower (hp) version of its ISB diesel engine for the motorhome market.

The new engine will be used on the new National RV Marlin Class A motorhome, which is mounted on a Spartan Motors 26,000-pound gvwr Summit GTI independent front suspension raised rail chassis.

National RV introduced the Marlin last week. It will retail in the $140,000 range and will be available in three floorplans between 35 and 39 feet long.

“With the highest power-to-weight ratio in the RV market, motorhome owners will definitely notice more power and responsiveness when accelerating or climbing steep grades,” said Carolyn Jackson, director of RV markets for Cummins.

The six-cylinder engine is fully electronic which makes servicing easy and it has long maintenance intervals – up to 15,000 miles or one year for oil and fuel filter changes.