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Shop/Category/Fig. 1 — CYLINDER AND CRANKSHAFT/BSA Bolt, flywheel (3/8" UN.F. × 1 1/8")
BSA Bolt, flywheel (3/8" UN.F. × 1 1/8")
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DiagramFig. 1 — CYLINDER AND CRANKSHAFT · ref 45
Subsystemengine bottom
Listed in parts books1969

BSA Bolt, flywheel (3/8" UN.F. × 1 1/8")

A 3/8 inch U.N.F., 1 1/8 inch long flywheel bolt for the crankshaft assembly, cataloged for 1969.

PN · 40-1030

This is a flywheel bolt, 3/8 inch U.N.F. thread, 1 1/8 inch long, listed under the CYLINDER AND CRANKSHAFT figure. It's a bottom-end fastener, part of the hardware that holds the flywheel assembly together on the crankshaft.

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Our catalog record shows this part appearing once, tied to the 1969 model year. The manufacturer tag on this one reads BSA, though the figure title and description don't name a specific model, so it may simply be filed that way in our records rather than confirming the brand outright.

If you're chasing one of these down, check the thread and length against what's actually in your motor before ordering, since flywheel bolts on these engines aren't a part you want to guess on.

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