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.
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