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Shop/Category/Fig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning/BSA Tube — crankshaft sludge trap
BSA Tube — crankshaft sludge trap
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DiagramFig. 30 — A70 MODEL — Except for the following, all other items are as A65 Lightning · ref 4
Listed in parts books1972

BSA Tube — crankshaft sludge trap

Crankshaft sludge trap tube for a BSA twin engine, part number 71-2683.

PN · 71-2683

This is the crankshaft sludge trap tube listed under part number 71-2683, described in the catalog simply as a tube for the crankshaft sludge trap. The sludge trap is the centrifugal debris catcher built into the crankshaft that spins out grit and contamination before oil gets to the rod bearings, and this tube is a component of that assembly.

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Our record for this one is thin — it shows up once, tied to the A70 model figure, which notes that other items on that engine follow the A65 Lightning listing. That points to a BSA twin rather than anything Triumph, but beyond that we don't have more detail on this one.

If you're working on a sludge trap and need this tube, give us a call and we'll confirm fitment against your specific engine before you order.

Not listed anywhere

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.

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Related parts
Plug — crankshaft sludge trap tube
PN 71-2682 · Goes with this
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Ed is at the counter. Tell him what you're working on or what doesn't fit, and he'll take it from there with this part already on the bench.