BROADVIEW, Ill. – Bosch has announced the launch of the new heavy duty Long Haul Extreme alternator, designed to provide superior power output on the road and at idle, with advanced electronics and a design that ensures trouble-free operation, increased battery life and significant fuel savings, according to the company.

“By optimizing brushed alternator technology and state-of-the-art electronics and components, Bosch is able to eliminate the need for brushless technology and provide a compact, lightweight, rugged 170- or 200-amp alternator highly suited for the severe operating conditions in today’s commercial vehicles,” said Fred Padgett, group product manager, starters and alternators for Bosch. “The use of advanced technology in the new Long Haul Extreme brushed alternator (AL9920LL, AL9921LL, and AL9922LL) produces ‘extreme’ long life while exceeding the performance of brushless alternators. Furthermore, it weighs up to 34 percent less than brushless alternators.”

Long Haul Extreme alternators come in 170- and 200-amp versions, producing respectively 170 and 200 amps at 6,000 alternator rpm operating output, and 120 and 122 amps at 2,000 alternator rpm. The Long Haul's high charge rate at lower engine rpm prolongs battery life by reducing deep cycling, according to Bosch.

“The new Long Haul Extreme is built to operate under high temperature situations, with dual internal cooling fans optimized for maximum airflow to help maintain its even temperature under all operating conditions,” Padgett says. “It replaces more than 200 competitive alternator part numbers and operates at up to 74 percent efficiency, resulting in significant fuel savings versus brushless types that operate at 55 percent efficiency. Long Haul Extreme is backed by Bosch's exclusive 36-month, 350,000-mile warranty, and advanced electronics and construction ensure fast installation and efficient, trouble-free operation.”