| Also known as | E8004 |
| Diagram | Fig. 2 — CRANKCASE · ref 41 |
| Subsystem | engine bottom |
| Listed in parts books | 1968 |
BUSHING,BSATRI 250 66-67
Crankcase camshaft bushing for the BSA 250 (1966-1967) and Triumph 250 TR25W (1968), also listed as E8004.
This is a crankcase bushing that shows up in the catalogs for both BSA and Triumph 250 singles - the BSA 250 for 1966-1967, and the Triumph 250 TR25W for 1968. Those two bikes shared engine architecture during that period, which is why the same bushing part number covers both marques in the parts books.
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It lives in the crankcase, per the figure it's listed under, and the grounding info we've got points to it being a camshaft bushing specifically - a bronze bearing surface that the camshaft rides in or against inside the cases. A worn bushing here can show up as excess play in the camshaft and knock-on wear elsewhere in the timing side of the engine.
The legacy alias for this one is E8004. If you're working on a BSA or Triumph 250 single from this era and suspect wear in this area, give us a call and we can help confirm what you're looking at before you order.
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