| Also known as | 57-1038AS |
| Diagram | Fig. 24 — OIL TANK AND COOLER · ref 10 |
| Listed in parts books | Not catalogued by year yet |
CLUTCH SHOCK ABSORBER 4 SPRING - TRIUMPH/BSA
4-spring clutch shock absorber assembly for Triumph/BSA, now supplied under part number 57-1038AS.
This is the 4-spring clutch shock absorber assembly listed for Triumph and BSA applications, sold under part number 99-9906 and now carried forward under the current factory number 57-1038AS. The shock absorber sits inside the clutch, and its job as a class of part is to cushion the sudden loads that come through the drivetrain when power is applied or the clutch is engaged hard, so the springs are there to take up shock rather than let it hammer straight through the gears and chain.
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We don't have much more detail on file for this specific listing beyond the description and the number change to 57-1038AS. If you're working from an older parts book and see 99-9906 printed there, that's the same physical assembly you'd order today as 57-1038AS.
Give the shop a call if you want to confirm this is the right shock absorber assembly for your particular clutch setup before you order.
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