Alternator
33SI Series
Brushless endurance for heavy diesel fleets in the harshest conditions.
Delco Remy
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
Interested in these products?
Select products below and add to your enquiry list, or send us your requirements.
Send RequirementsProducts in the 33SI Series (4)
| SKU | Voltage | Rated Output | Mount Type | Ground | Stock | Actions |
|---|---|---|---|---|---|---|
| 10459196 | 24V | 100 Amps | J180 Hinge | Negative | Available to Order | View |
| 19011153 | 24V | 100 Amps | J180 Hinge | Negative | Limited Stock2 | View |
| 19011164 | 12V | 110 Amps | J180 Hinge | Negative | Limited Stock1 | View |
| 8600333 | 24V | 100 Amps | J180 Hinge | Negative | Available to Order | View |