The standard features of the RAM 4500 HD Chassis ST/SLT include Cummins 6.7L I-6 305hp engine intercooled turbo, 6-speed manual transmission with overdrive, 4-wheel anti-lock brakes (ABS), 19.5" steel wheels, cruise control, AM/FM stereo in-dash mounted single CD MP3 decoder, with 2 speakers, systems monitor, tilt steering wheel, light tinted windows, 4-way manual adjustment driver & passenger seats, and a max trailer weight of 18,300lbs.