| Also known as | MC-139/020 |
| Listed in parts books | Not catalogued by year yet |
T150 RING SET+.020 DEVES
Deves-brand .020-over ring set for the T150 triple engine.
This is a Deves piston ring set for the T150 triple, ground .020 over standard bore size. If a set of pistons has already been bored to that oversize, this is the ring set that matches. The catalog listing carries the alternate reference MC-139/020, so if your parts book or an old invoice shows that number, it's the same set.
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We don't have much more on file for this one beyond the ring set and oversize callout. If you're not sure what oversize your barrels have been taken to, check the piston crown stamp or your rebuild paperwork before ordering, since ring sets are cut to a specific bore diameter and won't work if the size is off.
Call the shop if you want us to confirm this is the right set for your engine before you buy.
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