240Amp Alternator 18- Jeep Army Green

The 240Amp Alternator 18 - Jeep Army Green by TUFF-STUFF is a high-output charging system upgrade designed for Jeep owners running aftermarket electrical accessories, auxiliary lighting, or winch systems. If you're building a serious off-road rig or adding modern conveniences like a second battery bank, upgraded audio, or LED lighting arrays, the factory alternator often falls short of demand. This 240-amp unit directly addresses that gap, delivering the sustained amperage needed when idling at low RPMs on the trail or during extended night operations.

TUFF-STUFF's 240-amp design uses a high-efficiency internal regulator and heavy-duty windings to maximize output across the entire RPM band, particularly crucial for low-speed crawling where accessory current draw is heaviest. The serpentine pulley system is engineered to match Jeep 18-year-platform mounting points and belt drive ratios, ensuring proper voltage regulation between 13.5 and 14.8 volts without parasitic drag. The army green powder-coat finish resists corrosion in off-road environments while the compact 9.6 x 8.9 x 13.2-inch footprint fits standard engine bay configurations without requiring custom bracketry. At 18.8 lbs, it's slightly heavier than OEM units due to upgraded copper windings and internal components that handle sustained high-amperage loads.

This alternator is ideal for Jeep TJ, JK, and JL owners who operate aftermarket winches, dual battery systems, or inverters in remote locations where charging cycles must remain stable under stress. Professional mechanics and serious overlanders recognize that undersized charging systems create voltage sag, dimmed headlights, and potential auxiliary load shutdown—all hazards in difficult terrain. Installation requires disconnecting the negative battery terminal, removing the serpentine belt, and unbolting the OEM unit; most shops complete the swap in under two hours. The 240Amp Alternator 18 - Jeep Army Green delivers the electrical capacity that modern accessory packages demand while maintaining OEM integration and long-term reliability.