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, both with a 1-year warranty. The RE035 brushless series features 140 amps and the RE036 includes 170 amps. Both systems have remote sensing capability to extend the service life of truck batteries. Both come with a 3-year warranty. The TRP alternators are designed to meet original equipment maker specifications and rated up to 221 degrees F.