Delco Remy 40SI Brushless Alternator 12V 275A Pad Mount, High Efficiency with Remote Sense
Product Overview
This Delco Remy 40SI brushless alternator delivers high efficiency, reducing engine horsepower requirements and resulting in substantial fuel savings. Real-time operating data collected on various vehicle applications demonstrates fuel cost savings over a typical life cycle by increasing alternator efficiency from 60% to 72%. Designed for medium and heavy-duty trucks and school buses, it features a pad mount design and remote sense capability to reduce battery charge time by up to 50%.Alternator, Brushless, 5/16 B+ Output Terminal, 275 A Current Rating, 0.72 Efficiency, 8000 rpm Continuous, 10000 rpm Intermittent Maximum Speed, Model 40SI, Pad Mounting, Negative Polarity, Remote Sense Terminal, Clockwise Rotation Direction, 12 V System, 125 °C Temperature Rating
Features & Benefits
- Manufactured to Meet or Exceed O.E.M. Specifications in Function, Form & Fit.
- Brushless advantage: fewer moving parts means less wear and longer life
- Equipped with remote sense which can reduce battery charge time by 50%; remote sense utilizes a second wire that reads the actual voltage at the battery, signaling the alternator to boost output to compensate for voltage drop, ensuring 14 V at the battery and a full state of charge between vehicle stops
- OE approved, assuring OE quality and performance for aftermarket replacements
- Superior output producing up to 320 A at road speed and 190 A at idle
- Warranty: 3 year/unlimited miles
- High efficiency = fuel economy
Specifications
| Amps | 275 amp |
| Application | Medium & Heavy Duty Truck / School Bus |
| B+ Output Terminal | 5/16 in |
| Contents | Alternator, Instruction Sheet |
| Ground Terminal | Negative |
| I Terminal | #10 |
| Manufacturer | Delco Remy |
| Model | 40SI (Brushless) |
| New or Remanufactured | New |
| Polarity | Negative |
| Remote Sense Terminal | Yes |
| Rotation | CW |
| R Terminal | 10 |
| Terminal | 10 |
| Type | Brushless |
| Volt | 12V |
| Weight | 31 lb |
| Current Rating | 275 A |
| Efficiency | 0.72 |
| Maximum Speed | 8000 rpm Continuous, 10000 rpm Intermittent |
| Mounting Configuration | Pad |
| Rotation Direction | Clockwise |
| System Voltage | 12 V |
| Temperature Rating | 125 °C |
| Product Category | Alternator |
Interchanges & Equivalent parts:
| ALT0271 |
| A00114949GH |
| A0014942PA |
| A0014944PA |
| A0014947PA |
| A0014949PA |
| A0014975PAA |
