| Also known as | 70-3978 |
| Listed in parts books | 1960–1962 |
STATOR RING PU TRI 54-62
Stator mounting ring for pre-unit Triumph 500 and 650 alternators, 1954-1962.
This is the stator mounting ring for pre-unit Triumph alternator setups, covering the 500 and 650 twins built from 1954 through 1962. It's the ring that lets a stator seat correctly inside the alternator housing on these earlier engines, since the original Lucas stators for this period aren't something you can just buy off the shelf anymore.
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The ring also shows up in older parts books under the number 70-3978, so if you're cross-checking against an early catalog and see that number instead, it's the same piece. Because the original stators are long out of production, this ring is generally paired with a modern replacement stator built to fit in its place.
We don't have a lot of extra catalog detail beyond the basic description here, so if you're not sure whether your particular pre-unit engine takes this ring, give us a call before you order and we'll sort out the fitment with you.
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