![]() ![]() It develops 329 horsepower (245 kW) and 1,000 pound force-feet (1,400 N⋅m) of torque. The Cummins Westport L9N is a 543 cubic inches (8.9 L) turbocharged inline six-cylinder natural gas engine. ![]() It is a 659 cubic inches (10.8 L) overhead cam turbocharged inline six-cylinder diesel engine. The Mack MP7 is the base engine in the LR. The LR is available with a Mack MP7 diesel, Cummins Westport natural gas engine, and since 2020, an all-electric drivetrain. Most other vendor components are also available but engine choice is very limited. ![]() Mack builds their own major components (engines, axles, and suspensions) and promotes an integrated design but all LRs use a vendor transmission. There are locations for a joystick and other controls. This system can also shift the transmission into neutral when it is applied. The service brakes can be electrically applied, allowing the driver to exit leaving them on. Total loaded weight can be up to 72,000 pounds (33,000 kg).Īdvanced electronics are used for engine, chassis, and body controls, as well as maintenance. It has a stand-up right-side (curb) driving position. The cab is mounted very low and forward, allowing a step up from the ground to the cab floor of only 17 inches (43 cm). The LR is a forward control cab-over-engine type. All three models are mechanically and visually similar. The LR is a direct evolution of the 1994 model LE and the upgraded 2007 TerraPro LE. Introduced in 2015 it remains in production in 2020. It is used in refuse service with front, side, and rear-loading refuse compactor bodies. The cab is very low-profile and has dual driving controls with a stand-up driving position on the right side. They are a forward control cab-over-engine type, where the driver sits in front of the axle. The Mack LR (Low Ride) is a series of heavy-duty ( Class 8) trucks built by Mack Trucks. ![]()
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