Dealers aren't able to get these. There is a long waiting list to get one. The most common issue is the rear bearing. I have been replacing these bearings with great success. Please call me to have your's repaired. I have been rebuilding alternators and starters 6 days a week for 22 + years. I can have your generator back to you with a same-day turnaround time. Don't sell your truck, just have yours repaired and back on the road today.