LB7 | LLY | LBZ Duramax High Output Alternator – Mean Green 8247

Solve chronic undercharging issues on your 2001–2007 6.6L Duramax with the Mean Green 8247 High Output Alternator. This direct-fit, 200-amp unit delivers substantially more charging power than the factory alternator while bolting into the stock location and using the original 4-pin connector and serpentine belt.

Key Features

• 200 Amp High Output – Provides the amperage needed for added lighting, stereos, winches, plows, and other electrical accessories without the complexity of a dual-alternator setup.
• Heavy-duty construction – Tool-steel rotor shaft supported by double-sealed bearings for long-term durability under high load and heat.
• High-temperature components – Solid copper stator windings sealed with high-temp insulation and a heat-resistant multi-function integrated regulator that continues to function in extreme under-hood temperatures.
• Precision balanced for smooth, vibration-free operation.
• Brand new unit – No core charge required.
• Easy bolt-in installation – Direct replacement that retains stock brackets and wiring.

Fitment: 2001–2007 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD with 6.6L Duramax LB7, LLY, or LBZ engines.

Warranty: 1-year unconditional guarantee.

Upgrade your Duramax charging system with the Mean Green 8247 and eliminate low-voltage problems while supporting the electrical demands of a work or performance truck.