The Mean Green High Output Alternator is the answer to all of your charging problems. The Mean Green Alternator provides up to 300% more power than stock. The Mean Green Alternator can charge any engine no matter what its' power requirements. Features: No Core 220 AMP Output Superior Design Easy 5 Minute Installation 300,000 Mile Life Expectancy 1 Year Unconditional Guarantee Precision Balanced for Smooth Operation The Mean Green Alternator's tool steel rotorshaft is supported at both ends by heavy duty double sealed bearings. Even the heavy duty solid copper starter windings are sealed with high temperature insulation. That's one reason we include a 1 year Warranty at no charge on every alternator. Another is the heat resistant, multi-function integrated regulator which continues to operate even at extreme temperatures. Special new castings permit use of stock bracketry and bolt hole locations. Even the stock wiring harness can be used for easy plug in. Designed to outlast and outperform any other unit. Great for use in ambulances, tow trucks, motorhomes or vehicles with off road lights, winches, stereo systems or other power accessories.