[BOSCH EXPERTISE] - Bosch 100% new alternators benefit from more than 100 years of alternator manufacturing experience, ensuring years of reliable charging performance, even under the most extreme operating conditions [PROVEN RELIABILITY] - Engineered, manufactured, and 100% tested to the highest industry standards Bosch is famous for, using all new, not remanufactured, components for maximum reliability and performance [100% NEW COMPONENTS] - Bosch 100% new alternators incorporate only original equipment quality components to withstand the rigors of high heat environments and high electrical demand Cross Reference Numbers: 12317550967, 12317550968, 12317551254, 12317551256, 12317555926, 7550967, 12317521178, 12317525376, AL0841N, AL0839N, 0121715012, 0121615010, DRA0162, 0986084170, 0121615110, 0121715112 [ADVANCED ENGINEERING] - Identical in fit and function to the OE parts they replace, yet benefiting from the latest enhancements in engineering and charging technology for exceptional performance [ENHANCED CAPABILITY] - The perfect solution for certain problematic late-model applications that place an extreme burden on unit components in a high-heat environment