Overview
The 33SI is Delco Remy's workhorse heavy-duty brushless alternator, available in 12V/110A, 12V/135A, 24V/75A, and 24V/100A ratings, sized for large diesel-powered vehicles with substantial electrical loads. Its brushless construction eliminates brush-related failure modes and reduces maintenance, while load dump protection limits voltage spikes to 40V on 12V models to safeguard sensitive vehicle electronics.
Key Features
- Brushless design for extended service life with fewer failure points
- 12V models: 110A and 135A; 24V models: 75A and 100A
- Load dump protection — limits voltage spikes to 40V (12V models) to protect vehicle electronics
- Sealed electronics with corrosion-resistant coating against dirt, salt, and moisture
- Remote Sense voltage monitoring for cold-weather battery charge compensation
- J180 hinge mount; CW/CCW rotation; rated to 93°C / 200°F
Applications
- Heavy-duty diesel trucks and long-haul commercial vehicles
- Construction and off-highway equipment
- Agricultural and farm machinery
- Military and severe-duty vehicles
- Vehicles operating in cold climates or harsh environments
