This genuine Onan carb will work on both Carbureted units and EFI (Electronic Fuel Injection) units.  It fits the models of HGJAB (Spec A through E) and HGJAC (Spec A through C).

We also sell an aftermarket direct replacement - 3005374-A - that ONLY works with Carbureted units.  If your system is EFI, you will need to stay with the genuine Onan board.

* – The specification number denotes customer requested options

or deviations from a standard (1A, 1B,
etc.) model. The specification letter advances (A, to B, to C, etc.) with major manufacturing changes.

• Part #: 300-5374
• Manufactured by: Cummins Onan