Rated 4.9 out of 5 stars.
Hey there! If you're restoring a classic Yamaha enduro from the late '60s or early ‘70s, these NOS (New Old Stock) standard piston rings are exactly what you need. This is a genuine Yamaha part, number 251-11601-00, manufactured in Japan. They’re brand new, never used or installed, and still in their original packaging—just like you’d find them on the shelf back in the day. Perfect for the 1969 CT1 and 1970-1971 AT1 and AT1MX models. These rings help ensure proper compression and oil control, which is key for getting that vintage bike running smoothly again. Since they’re NOS, they’re the real deal—not a reproduction—so you know they’ll fit and perform just like Yamaha intended. No warranty is included, which is pretty standard for vintage NOS parts, but they’re unused and ready to seal up your cylinder. Whether you’re doing a full rebuild or just refreshing the top end, this set keeps things authentic. Great for collectors, restorers, or anyone keeping these classic two-strokes alive. Grab ‘em while you can—original Yamaha parts from this era aren’t getting any easier to find!
