| Also known as | 50-0404 |
| Listed in parts books | Not catalogued by year yet |
INLET VALVE GUIDE NORTON 750 KWPM MGNZ BRONZE
Inlet valve guide for the Norton 750, manganese bronze.
This is an inlet valve guide for the Norton 750, listed in our records as manganese bronze. It's a Norton part, not a Triumph piece, despite showing up in our system under a Renold-style number — the description is plain about what it is and what it's for.
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A valve guide sits in the cylinder head and keeps the valve stem tracking straight as it opens and closes, so wear here shows up as sloppy valve action and can throw off your seat contact if it's let go too long. The material called out here, manganese bronze, is a common choice for guides because it holds up to heat and wears in a predictable way against the valve stem.
We don't have much more detail on file for this one beyond what's above. If you're matching this against a Norton parts book by the alternate number, it also shows up as 50-0404 in our system. Give us a call and we'll confirm it's the right guide for your head before you order.
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