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104500-55710 Marine
ELEMENT
Fuel filter — sizing & interchange
Yanmar fuel systems are two-stage: a coarse ~30 micron primary water-separator (often a Racor 500FG) and a fine on-engine filter (~10 micron mechanical / ~2 micron common-rail). Never put a finer filter ahead of a coarser one. See the guide for spin-on/element cross-references and Racor element pairing.
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Aftermarket equivalents cross-ref
Third-party equivalents (Jabsco, Sierra, WIX, Mann…) — not OEM; verify before ordering. Usually cheaper than the marine dealer.
| Equivalent P/N | Brand | Description | Source | Confidence |
|---|---|---|---|---|
| 18-79960 | Sierra | GM/YM on-engine fuel element - 1GM/2GM/3GM/3HM element | fuelfilter-crossreference.com | likely |
| 121370-55730 | Yanmar | later element/cup design interchange - cup 121370-55730 holds element | fridayparts.com | likely |