Sleipner Overview All / Tunnels and Flanges / Stern Thruster Cowls All Thruster Packages AC Thrusters DC Thrusters Hydraulic Thrusters Electrical Components Spares Tunnels and Flanges SX Extension Blocks Bow Thruster Tunnels Stern Tunnels Stern Thruster Cowls Mould Flanges Upgrade Kits Cowls for 125mm stern tunnel £169.77 Add To Cart Cowls for 185mm stern tunnel £460.81 Add To Cart Cowls for 185mm stern tunnel £224.73 Add To Cart Cowls for 215mm stern tunnel £263.55 Add To Cart Cowls for 250mm stern tunnel £546.48 Add To Cart Cowls for 300mm stern tunnel £514.89 Add To Cart Cowls for 386mm stern tunnel £1,333.90 Add To Cart Cowls for 185mm for SX80/100 £224.73 Add To Cart Grids and Fasteners for SX140 £103.84 Add To Cart Cowls and Fasteners for SX140 £122.09 Add To Cart