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121254-77420 Marine

BALL BEARING

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Fitted to

Engines, drives and generators whose parts catalogue lists this part. Open any for its exploded parts list.

Engines

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/NBrandDescriptionSourceConfidence
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

Used in 3 places

Every catalog figure this part is placed in, the model(s) it applies to, and its reference/level/quantity.

Model(s)CatalogFigurePageRefLevQty
4LH-DTE, 4LH-HTE, 4LH-STE 4LH Parts Catalog Fig 66. STARTING MOTOR 92 4 3 1
4LH-DTE, 4LH-HTE, 4LH-STE 4LH Parts Catalog Fig 67. STARTING MOTOR 93 4 3 1
4LHA-DTE(P), 4LHA-DTZE(P), 4LHA-HTE(P), 4LHA-HTZE(P), 4LHA-STE(P), 4LHA-STZE(P) 4LHA Parts Catalog Fig 59. STARTING MOTOR 76 4 3 1