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K661
Twin Disc OEM part number
K661 — 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 |
|---|---|---|---|---|
| TD-K661 | Diesel Parts Direct | Authorized Twin Disc dealer listing for MG-502 gasket and seal kit under reference TD-K661. | dieselpartsdirect.com | confirmed |
| DP-K661 | Diesel Pro Power | MG-502 complete gasket & seal kit (OEM kit number K661); Diesel Pro aftermarket designation DP-K661. Fits MG-502 and MG-502-1. | dieselpro.com | confirmed |