| Also known as | MCA610 |
| Diagram | Fig. 12 — FOOTRESTS AND BRAKE LINKAGE · ref 46 |
| Listed in parts books | Not catalogued by year yet |
OIL SEAL KIT,BSA A65 A50 (Contains Taiwan Seals: 57-0946, 67-0674, 70-4578, 68-0026, 70-45468 x2)_x000D_
Full oil seal kit for BSA A50/A65 unit twins, bundling the seals needed for an engine reseal.
This is a full oil seal kit for the BSA A50 and A65 unit twins, sold under part number 99-9958 and also cross-referenced as MCA610. The kit bundles the seals a rebuild needs in one box rather than making you source each one separately: 57-0946, 67-0674, 70-4578, 68-0026, and two of 70-45468.
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These are the seals that keep oil where it belongs around rotating shafts and covers on the engine. Because it's a kit, you're covering multiple points in one go instead of guessing which single seal failed.
We don't have this part logged against specific BSA model years in our own catalog records, so if you're working from a parts book with different numbers for your particular A50 or A65, give us a call and we'll match it up before you order.
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