*Attention!* This is a B-Stock, Display or Show Product
Mechman B-Stock alternators are factory-refurbished units that may have been lightly used, returned, or reconditioned. They may show minor cosmetic imperfections like scratches or finish blemishes but are fully tested to meet Mechman’s strict performance and reliability standards. These units deliver the same high-output performance as new alternators at a reduced price.
Ships in 3–5 business days (processing). “In Stock” means available in our inventory; it does not mean same-day shipping.
Warranty: B-Stock alternators include a 90-Day Functional Warranty only. Warranty covers performance (not cosmetics or labor), is non-transferable, and all sales are final — no returns or exchanges. An optional extended warranty is available beginning at $49.99.
Restrictions: No Modifications Allowed. No paint, pulley swaps, clocking, harness changes, or regulator upgrades. If customization is required, please purchase a new retail alternator.
Pricing: Standardized B-Stock pricing applies to all orders (web or phone). Not eligible for promotions, dealer/distributor discounts, or codes.
Returns/Warranty page add: B-Stock Alternators: 90-Day Functional Warranty only (performance coverage; cosmetic imperfections and labor are not covered). Warranty is non-transferable. All B-Stock sales are final no returns or exchanges.
S Series
The S series of 6 phase alternators offers incredible output in a compact and durable package. Highly efficient, these units use less horsepower than conventional 3 phase alternators. 12 diodes, twin rectifier plates and outstanding airflow ensure long service life, even in severe conditions. The 320 amp model offers the best balance between peak output, and output at engine idle RPM.
NOTE: This alternator comes equipped with a 46mm diameter overdrive pulley that will require the installation a 1/2 inch to 1 inch shorter than stock length belt (not included) for proper belt tension.Notes:
| Name | Model | Engine | Year(s) | Amperage |
|---|---|---|---|---|
| CHRYSLER | Aspen | 4.7 | 07-09 | 320a |
| DODGE | Dakota | 3.7 / 4.7 | 07-10 | 320a |
| DODGE | Durango | 3.7 / 4.7 | 07-10 | 320a |
| DODGE | Full Size Truck | 3.7 / 4.7 | 07-13 | 320a |
| DODGE | Nitro | 3.7 | 07-09 | 320a |
| JEEP | Commander | 3.7/4.7 | 07-10 | 320a |
| JEEP | Grand Cherokee | 3.7 | 07-10 | 320a |
| JEEP | Grand Cherokee | 4.7 | 07-10 | 320a |
| JEEP | Liberty | 3.7 | 07-12 | 320a |
| RAM | 1500 Pickup | 3.7/4.7 | 11-13 | 320a |
