This is a replacement O.S. Slide Valve, and is intended for use with the O.S. .21 XZ-B and .21 XZ-B Speed engines.
This product was added to our catalog on April 30, 2012
- O.S. Engines .21 B2101 Speed
- O.S. Engines .21 XZ-B
- O.S. Engines .21 XZ-B Speed
- O.S. Engines .21 XZ-B Speed II
- O.S. Engines .21 XZ-B V2 ABC VII
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