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This 320 amp S Series small case alternator is all about max power and is not designed to charge at low idle speeds. Vehicles with small crankshaft pulleys and idle speeds below 800 may not charge at low idle. If power at lower idle speeds is what you need please look at our 240 amp S Series alternator. This S series 320 amp 6 phase alternator offers incredible output in a compact and durable package. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. 320 Amps of power at cruising speeds and 140 amps of power at 800 RPM (assuming a 3 to 1 crankshaft to alternator pulley ratio). This alternator comes with a 1.75" diameter pulley and may require being installed with a belt slightly shorter than stock.
Fitment Guide:
| Make | Model | Engine Size | Year |
| Dodge | Dakota | 3.7L / 4.7L | 2000 - 2006 |
| Dodge | Durango | 3.7L / 4.7L | 2004 - 2006 |
| Dodge | Ram 1500 | 3.7L / 4.7L | 2002 - 2006 |
| Jeep | Grand Cherokee | 3.7L | 2005 - 2006 |
| Jeep | Grand Cherokee | 4.7L | 1999 - 2006 |
| Jeep | Liberty | 3.7L | 2002 - 2006 |
| Shipping | Most items ship within 1–3 business days. Delivery time varies by item, vendor, and destination. |
Need help before ordering? Contact Droppin HZ and we can help confirm fitment, power needs, or supporting gear for your build.
Have questions before you order?
If you need help confirming fitment, power needs, or the right supporting gear for your build,
contact Droppin HZ and we’ll help point you in the right direction.
Description
This 320 amp S Series small case alternator is all about max power and is not designed to charge at low idle speeds. Vehicles with small crankshaft pulleys and idle speeds below 800 may not charge at low idle. If power at lower idle speeds is what you need please look at our 240 amp S Series alternator. This S series 320 amp 6 phase alternator offers incredible output in a compact and durable package. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. 320 Amps of power at cruising speeds and 140 amps of power at 800 RPM (assuming a 3 to 1 crankshaft to alternator pulley ratio). This alternator comes with a 1.75" diameter pulley and may require being installed with a belt slightly shorter than stock.
Fitment Guide:
| Make | Model | Engine Size | Year |
| Dodge | Dakota | 3.7L / 4.7L | 2000 - 2006 |
| Dodge | Durango | 3.7L / 4.7L | 2004 - 2006 |
| Dodge | Ram 1500 | 3.7L / 4.7L | 2002 - 2006 |
| Jeep | Grand Cherokee | 3.7L | 2005 - 2006 |
| Jeep | Grand Cherokee | 4.7L | 1999 - 2006 |
| Jeep | Liberty | 3.7L | 2002 - 2006 |
Shipping
| Shipping | Most items ship within 1–3 business days. Delivery time varies by item, vendor, and destination. |
Need help before ordering? Contact Droppin HZ and we can help confirm fitment, power needs, or supporting gear for your build.
REVIEW
Have questions before you order?
If you need help confirming fitment, power needs, or the right supporting gear for your build,
contact Droppin HZ and we’ll help point you in the right direction.
Amplifier build support
Plan the power behind your amplifier.
Amplifiers need the right subwoofer or speaker load, power wire, fusing, ground, and electrical support. Confirm the full system before ordering high-output gear.
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