Mean-Green MG1380 Premium Alternator: 00-06 Jeep Wrangler TJ & Unlimited with 4.0L The Mean Green Alternator provides up to 300% more power than stock & can charge any engine no matter what it's power requirements. Superior Design with Easy 5 Minute Installation 1 Year Limited Warranty Precision Balanced for Smooth Operation Fitment: 00-06 Jeep Wrangler TJ with 4.0L, 04-06 Jeep Wrangler Unlimited (TJ) with 4.0L