- Wacker Neuson 55mm Vibrator Head H55Special Price £193.00 £231.60 Regular Price £256.50Wacker Neuson 25mm Vibrator Head H 25S (Fits SM 4E Shaft Only)Special Price £191.00 £229.20 Regular Price £249.30Lead Time: 8 weeks from GermanyWacker Neuson 4m Flexshaft SM4E (Fits H 25S Head Only)Special Price £193.75 £232.50