Alternator 604 Series Saddle Mount (Dual Foot) Isolated Ground J-180-Style Mounting

Featuring a 4" dual foot saddle mount with J-180-style mounting, this alternator offers secure, vibration-resistant installation that is typical for Caterpillar, Cummins, Detroit Diesel & John Deere engines. The versatile 4" mounting design helps simplify replacement and upgrade projects across a wide range of heavy-duty equipment.

Models are offered with a deep dual V-belt pulley or a K6 serpentine pulley configuration, providing flexibility to match existing belt systems and ensuring smooth, consistent belt engagement. The isolated ground design enhances electrical safety and compatibility, reducing the risk of ground-loop issues and improving performance in complex or sensitive electrical systems.

Built for harsh environments and continuous-duty operation, this alternator line is ideal for trucks, construction equipment, agricultural machinery, marine diesels, and other high-demand applications requiring a robust 12V charging solution. High output at low engine speeds helps maintain battery health and supports additional accessories, electronics, and onboard systems.

If you are upgrading from an older unit or replacing an existing J-180-style alternator on a Caterpillar, Cummins, Detroit Diesel, or John Deere engine, this series provides a dependable, efficient solution with modern design features and multiple pulley options to match your installation requirements.