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Mack introduces powerful new engine brake for ASET engines

LOUISVILLE, Ky. - Mack's newly introduced PowerLeash brake is an integrated engine brake available for the truck maker's Application Specific Engine Technology (ASET) engines.Mack says the design inte...


LOUISVILLE, Ky. – Mack’s newly introduced PowerLeash brake is an integrated engine brake available for the truck maker’s Application Specific Engine Technology (ASET) engines.

Mack says the design integrates the PowerLeash brake within the base engine envelope, saving 50 pounds over other engine brakes.

“Over half of Mack’s customers spec’ an engine brake in their truck purchases today, and we expect that figure to grow as drivers become aware of the PowerLeash brake and its improved vehicle control,” says Tom Kelly, vice-president, marketing.

Mack says a major advantage of the new product is improved performance throughout the engine operating range, reaching 420 braking horsepower at 2,100 rpm. It claims the PowerLeash can deliver a 50 per cent reduction in brake response time.

The PowerLeash’s adjusting screw and actuator pin are designed as separate, solid pieces to resist wear. An internal oil screen provides an additional layer of protection from any particles in the oil, while electrical components are on the cold side of the engine away from heat sources.


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