New alternators for medium- and heavy-duty trucks feature the RE022 brush series with 150 amps of power and the RE 555 brush series with 160 amps of power, both with a 1-year warranty. The RE035 brushless series features 140 amps of power and the RE036 features 170 amps of power. Both systems have remote sensing capability, which is designed to extend the service life of the truck’s batteries. Both come with a 3-year warranty. The TRP alternators are designed to meet original equipment maker specifications and are rated for higher temperatures up to 221 degrees Fahrenheit.