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121254-77420 Marine
BALL BEARING
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OEM 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 |
|---|---|---|---|---|
| 6203 | SKF/NSK/NTN(std) | deep-groove ball bearing 17x40x12mm - 4LHA sea-water pump shaft bearing | ab-marineservice.com; buyyanmar.com; dutchengineparts.nl; maniacelectricmotors.com | likely |