121857-55710 Marine
FILTER, FUEL
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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Fitted to
Engines, drives and generators whose parts catalogue lists this part. Open any for its exploded parts list.
EnginesOEM interchange
Other OEM part numbers for the same part — order from any of these makers or their dealers.
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 | Shop |
|---|---|---|---|---|---|
| FF5421 | Fleetguard | Fuel filter (primary) — 6JH3/4 series - Fleetguard FF5421 via 121857-55710 cross; note=verify | dieselpartsdirect.com | unverified | |
| PS4886 | Fram | Fuel filter for MINI-17/26/29/33/44/55; cross via Mitsubishi 32A62-01020 | fuelfilter-crossreference.com | likely | |
| E471KP | Hengst | Fuel filter for SK-60 (Kubota V2403); cross via Kubota 16271-43562 | fuelfilter-crossreference.com | likely | |
| H17WK09 | Hengst | Fuel filter for MINI-17/26/29/33/44/55; cross via Mitsubishi 32A62-01020 | fuelfilter-crossreference.com | likely | |
| P45 | Mann | Fuel filter for SK-60 (Kubota V2403); cross via Kubota 16271-43562; also fits Sole Mini series per solediesel.nl listing | fuelfilter-crossreference.com | likely | |
| 33263 | WIX | Fuel filter for SK-60 (Kubota V2403); cross via Kubota 16271-43562 | fuelfilter-crossreference.com | likely | |
| 33394 | WIX | Fuel filter for MINI-17/26/29/33/44/55; WIX confirmed "Mitsubishi engines" on 10 micron spec | fuelfilter-crossreference.com | likely | |
| BF7534 | Baldwin | Fuel filter for MINI-17/26/29/33/44/55 (S3L2/S4L2); cross via Mitsubishi spin-on 32A62-01020; verify spin-on vs element type for your installation | ab-marineservice.com; fuelfilter-crossreference.com | confirmed | |
| P550390 | Donaldson | Fuel filter for MINI-17/26/29/33/44/55; cross via Mitsubishi 32A62-01020 | filters-king.com; fuelfilter-crossreference.com | confirmed | |
| FF5160 | Fleetguard | Fuel filter for MINI-17/26/29/33/44/55; cross via Mitsubishi 32A62-01020 | ab-marineservice.com; fuelfilter-crossreference.com | confirmed | |
| WK940/16x | Mann | Spin-on fuel filter 4LH/4LHA M20x1.5 - also element for assy 129495/129677-55600 | ab-marineservice.com; dieselpartsdirect.com | confirmed |
Used in 5 places
Every catalog figure this part is placed in, the model(s) it applies to, and its reference/level/quantity.
| Model(s) | Catalog | Figure | Page | Ref | Lev | Qty | |
|---|---|---|---|---|---|---|---|
| 3JH40 | 3JH40 Parts Catalog | Fig 32. FUEL PRE-FILTER(HULL SIDE) | 36 | 7 | 2 | 1 | |
| 4JH45, 4JH57 | 4JH45-4JH57 Parts Catalog | Fig 33. FUEL PRE-FILTER(HULL SIDE) | 41 | 8 | 2 | 1 | |
| 4JH110, 4JH80 | 4JH80-4JH110 Parts Catalog | Fig 42. FUEL PRE-FILTER(HULL SIDE) | 49 | 8 | 2 | 1 | |
| 4LH-HTE | 4LH Parts Catalog | Fig 62. FUEL STRAINER | 87 | 5 | 2 | 1 | |
| 4LHA-HTE(P), 4LHA-HTZE(P) | 4LHA Parts Catalog | Fig 51. FUEL STRAINER(4LHA-HT(Z)E(P)) | 68 | 4 | 2 | 1 |