Breather Valve Spiral Drive Gear BT37-48

€135,86
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SKU: 781162 | 25302-37
Breather Valve Spiral Drive Gear BT37-48

Parts fit all 1937 and later 45CI, 74CI & 80CI Sidevalve engines, unless otherwise specified.
*for best results we recommend to flow intake ports and use oversize intake valves, high compression heads and M51 style or Mikuni carburetor.