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21951188 Marine
Belt
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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 |
|---|---|---|---|---|
| 5PK850 | Dayco | Dayco 5PK850 industry size for D1-30 / D2-40 drive belt. - depth:belts | yoyopart.com | confirmed |
| 5PK850 | Gates | Orbitrade listing states multirib profile 5PK850 for VP 21951188/3812159. Complements live Orbitrade 18188 edge with industrial size channel. - depth:belts | moory.ie | confirmed |
| 18188 | Orbitrade | Drive belt (V-belt) for D1-30 / D2-40 (alternator + raw water pump). Supersedes VP 3812159. ASAP Supplies confirmed listing. | asap-supplies.com; jlmmarine.com | confirmed |