Air Filter Element – Fits Yanmar 3JH & 4JH Series Marine Diesel Engines (Replaces 129470-12330) 48hp Allow the engine to reach

Allow the engine to reach operating temperature to confirm the thermostat opens correctly

Always inspect the tensioner when replacing the belt

Note the rotational direction of the existing impeller vanes before removal

What are the signs my bellows need replacing

Air Filter Element – Fits Yanmar 3JH & 4JH Series Marine Diesel Engines (Replaces 129470-12330) 48hp Allow the engine to reachProduct Details This Air Filter Element Fits Yanmar 3JH & 4JH Series Marine Diesel Engines (Replaces 129470 12330) is engineered for a precise fit on Yanmar 3JH and 4JH series marine diesel engines, including the 3JH2, 3JH3, 4JH2, 4JH3, and 4JH4 models. It ensures your engine breathes clean, particle free air for optimal combustion and longevity. This part is a direct replacement for Yanmar part numbers 129470 12330 and the older part number