We offer lifetime warranty on labor and one year warranty on parts from date of purchase.  Powder coat is guaranteed for 3 months from date of purchase.   


Customers outside of the continential 48 United States will be liable for return shipping costs for alternators repaired under warranty and alternators damaged in shipping.

JS Alternators will cover return shipping costs to ship alternators repaired under warranty to any customer inside the continental 48 united states.

Costs incurred from damage caused by return shipping will be the customers responsibility to pay.


JS Alternators are all custom built to order and are non-refundable.