| Also known as | 70-4291 |
| Listed in parts books | Not catalogued by year yet |
VALVE,EXHAUST TRIUMPH 500 1967-74 -BLACK KWPM
Exhaust valve for the Triumph 500 twin, listed for 1967-74, black finish.
This is an exhaust valve for the Triumph 500 twin, catalog listed for the 1967-74 span. It's the older number 70-4291 under Triumph's original numbering, now carried as 70-6854B. The finish here is noted as black in the catalog, which some shops use to distinguish this valve grade or coating from other options in the same listing.
Read more
The exhaust valve lives in the cylinder head, opening to let spent combustion gases out through the exhaust port on each cycle. It's a wear part that takes direct heat and needs to seat properly against the head to hold compression and keep the engine running right.
We don't have much more detail on this one beyond what's in the catalog entry. If you're ordering for a specific engine, give us a call and we'll confirm the application before you buy.
Sorry if we got something wrong here. If you think this information isn't correct, .