Indmar 556003 Inline EFI Fuel Filter - Stainless Mesh OEM
556003
These were commonly used on the 3-bar fuel system(2003 & older). After that, they were sometimes used on the 4bar/MPI/and Ford motor, by not across the board, so check your motor if applicable. See below for directions.
Keep your Indmar EFI engine running clean and consistent with the Indmar 556003 inline EFI fuel filter. This is an OEM Indmar marine fuel filter designed for high-pressure EFI systems and built with a stainless wire mesh element to help trap debris before it reaches your fuel rails and injectors. The canister is clearly marked with a fuel flow arrow to support correct installation (tank → engine).
Quick Tech Specs
- Part number: 556003
- Type: Inline EFI fuel filter (OEM Indmar)
- Filter media: Stainless wire mesh element
- Approx. size: ~4.2 in long, cylindrical inline canister
- Connections: O-ring sealed fittings (O-rings pn 986032 not included)
- Location: In the metal fuel line after the in-tank fuel pump hose
- Applications: Common on Indmar EFI engines (Chevy-based and some Ford), often found in Malibu & Axis boats from the mid-1990s through the 2010s (verify fitment by part number)
DIY Replacement Overview
- Relieve fuel pressure (disconnect battery; use a rag for drips).
- Locate the filter by following the fuel line from tank/pump toward the engine.
- Remove the old filter carefully and capture residual fuel.
- Install the new filter: lightly oil O-rings, confirm arrow matches fuel flow, tighten fittings.
- Prime & test: key ON to prime, then check thoroughly for leaks.
Service Interval
- Replace every 100 hours or annually (more often with poor fuel quality or ethanol-blended fuel).
Note: Always confirm compatibility with your engine/boat by matching the Indmar 556003 part number and your existing fuel line fittings.
