Place of Origin:
China
Brand Name:
Cum-mins
Model Number:
6HK1 / SY305 SY335
24V 100A Alternator for K19 QSX15 QSX19 Excavator Engine Parts 4000590 4936879
Ensure reliable electrical power for your heavy-duty equipment with this premium 24V 100A industrial alternator, engineered as a direct OEM replacement for part numbers 4000590 and 4936879. Designed specifically for high-horsepower K19, QSX15 and QSX19 diesel engines, this alternator delivers consistent, high-output power to charge batteries and operate all electrical systems including starters, lights, ECUs and hydraulic controls. Built to withstand extreme vibrations, temperature fluctuations and dusty construction site conditions, it provides long-lasting performance and eliminates electrical system failures that cause costly downtime. Every unit undergoes comprehensive load and durability testing before shipment to guarantee plug-and-play operation.
| Parameter | Specification |
|---|---|
| Product Name | Heavy Duty Alternator / Generator |
| OEM Part Numbers | 4000590, 4936879 |
| Compatible Engines | K19, QSX15, QSX19 Diesel Engines |
| Rated Voltage | 24V DC |
| Rated Current | 100A |
| Output Power | 2400W (24V × 100A) |
| Regulation Type | Built-in Electronic Voltage Regulator |
| Rotation Direction | Clockwise (standard for listed engines) |
| Mounting Type | Two-foot / Flange mount (direct fit replacement) |
| Pulley Type | Standard grooved pulley for engine belt drive |
| Insulation Class | Class H (high temperature resistance) |
| Certifications | RoHS, CE Compliant |
| Application | industrial engines, heavy-duty trucks, excavators, generators |
| Condition | New aftermarket replacement |
| Key Features | High-output performance, durable bearings, corrosion-resistant housing, low noise, direct bolt-on fit |
| Part Number | Status | Description & Compatibility |
|---|---|---|
| 4000590 | Current Production | Official factory original part number, standard for heavy-duty industrial applications |
| 4000590X | Current Production | international format with X suffix, identical to 4000590 |
| 4000590RX | Remanufactured | Factory-remanufactured alternator with full OEM warranty |
| 19011153 | OEM Supplier Original | Original equipment manufacturer part number, cross-matches 1:1 with 4000590 |
| 3400698 | OEM Supplier Original | Early production Delco Remy part number, fully interchangeable |
| 19011175 | OEM Supplier Original | Updated Delco Remy version with improved regulator |
| 4096532 | Superseded | Previous generation part number, fully interchangeable |
| 3332213 | Superseded | Early industrial engine specific version |
| 4936879 | Current Production | Lower-output version, same mounting but different electrical rating |
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