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Remy introduces new high-output alternator

Remy International, Inc. has launched the Delco Remy 38SI, its latest high output alternator. With this high-efficiency, mid-range amperage (215 A) alternator, Remy offers customers a comprehensive portfolio of high output products.

The 38SI offers:

  • Remote Sense that can reduce battery charge time by 50%;

  • Unique stator design with best-in-class high efficiency, providing less engine horsepower requirements and substantial fuel savings;

  • Premium brushless design that transfers magnetic fields between the field and rotor air-gap, completely eliminating the need for brushes and, thereby, extending the life cycle; and

  • OE inspection and approval, assuring OE quality and performance for aftermarket replacements.

The 38SI is suited for school buses; line-haul commercial trucks with anti-idling equipment; emergency vehicles; refuse trucks; utility vehicles; shuttle buses; and recreational vehicles.

The 38SI has the highest efficiency rating in its class. High efficiency translates to less engine horsepower requirements, resulting in substantial fuel savings.

To assess the impact on the overall vehicle and electrical system, Remy collected real-time operating data on several vehicle applications. Data shows that, over a typical life cycle, there is a fuel cost savings as alternator efficiency increases 60 to 72%. Fleets can calculate their potential cost savings using the Fuel Economy Calculator at


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