Heavy Duty On-Highway Truck Alternators

Delco Remy Heavy Duty Alternators are available with outputs ranging from 160 up to 320 amps for all on-highway truck applications.  High efficiency models deliver measurable fuel savings over the life of the vehicle, and alternators equipped with Remote Sense dramatically improves battery charge time.  The unique brushless designs deliver the durability you can count on.  You depend on your fleet to keep the freight moving, so count on Delco Remy alternators to keep your trucks on the road.

Brushless Type Heavy Duty Alternators

36SITM:  Durability for the Long Haul

The Delco Remy 36SI Heavy Duty Brushless Alternator will last much longer compared to a standard brush alternor. Brushless alternators feature fewer moving parts and come standard with a 3 year warranty (applies to US and Canada) and are available with Remote Sense.  The 36SI is available in output ratings up to 170 amps and comes in J180 and pad mounting configurations.
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38SITM:  Power and Efficiency You Can Count On 

The 38SI offers the highest efficiency rating in it's class. High efficiency directly translates to fuel savings.  This OE approved model is rated at 215 amps and 121 amps at low engine RPM.   The 38SI is available in a pad mount configuration and backed with a 3 year / unlimited mile warranty (applies to US and Canada).
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40SITM:  The Preferred Fleet Choice

The 40SI provides the most power, efficiency and durability than any alternator in its class.  That's why major fleets spec the 40SI on their new trucks. The high efficiency stator design delivers substantial fuel savings.  With output ratings up to 320 amps, this model can handle the highest electrical demands from auxiliary power units, lift gates and other power requirements of today's on-highway fleet.  It also outperforms at low engine speeds.  The 40SI is available in short J180, long J180, and pad mounting configurations and is backed with a 3 year / unlimited mile warranty (applies to US and Canada).


Brush Type Heavy Duty Alternators

24SITM:  Maximum Cooling Technology

The Delco Remy 24SI Heavy Duty Alternator features dual internal fans providing maximum cooling and which allowing it to operate at lower temperatures which improves the operating efficiency and durability of the unit. The 24SI is rated at 160 amps and comes in J180 and pad mounting configurations.
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28SITM:  Intelligent Design

The Delco Remy 28SI Heavy Duty Alternator has proven technoligies like Dual Internal Fans and Remote Sense fit demanding applications that contend with strong electrical loads as part of their daily operating routine.  Its high efficiency design leads to measurable fuel savings over the life of the vehicle.  The 28SI is available in output ratings up to 200 amps and short J180, long J180, and pad mounting configurations.
     Learn more about the 28SI