| Also known as | 40-326 |
| Diagram | Fig. 3 — CRANKCASE · ref 8 |
| Subsystem | engine bottom |
| Listed in parts books | 1969–1970 |
BSA Engine sprocket spacer (·309—·312"; 7·884—7·924 mm.)
Engine sprocket spacer, PN 40-0326, sized .309-.312 in. (7.884-7.924 mm), from the crankcase assembly.
This is the engine sprocket spacer listed under PN 40-0326, also shown in older records as 40-326. The catalog gives a size range of .309 to .312 inches (7.884 to 7.924 mm), so it's a precision spacer meant to hold a specific clearance rather than a general-purpose washer.
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It shows up in the CRANKCASE figure across catalog appearances spanning 1969 to 1970, which tells us it's part of the crankcase assembly, but our records don't spell out exactly where it sits relative to the sprocket or shaft beyond that. If you're rebuilding a bottom end and need to confirm this is the right spacer for your engine, give us a call and we'll go over the fitment before you order.
We don't have additional detail on model or year fitment beyond what's shown here, so treat this as a crankcase-area spacer with a tight, specified thickness range rather than a catch-all shim.
We've never carried this one. Tell us what you're after and we'll go looking — you'll get a price and photos before you commit to anything.
Sorry if we got something wrong here. If you think this information isn't correct, .