TRIUMPH CYLINDER BASE NUT SET PRE-UNIT 650cc UNIT T120 T110 TR6 6T BONNEVILLE

This is a brand new set of 4 inner (small) and 4 outer (large) cylinder base hex nut. 3/8″ x 26 TPI.

Fits: Triumph pre-unit 500cc and 650cc up to 1962 and unit 650cc models up to 1968

Inner small nut part # W76, 37-0076

Outer large nut part # PO172A, 60-4261, 82-3955, 99-0047