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A3905B
Twin Disc OEM part number
A3905B — Affiliate Parts Search
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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 |
|---|---|---|---|---|
| A3905B | Seaboard Marine | MG-5050 rubber torsional isolator block (26 required per unit). OEM ref A3905B; aftermarket equivalent listed by Seaboard Marine (e-Rubber brand). | sbmar.com | likely |