Ultraflex Nautech Hydraulic Steering Kits 300hp

Ultraflex Nautech OBF all-in-one hydraulic steering kits are designed for outboard engines up to 300hp and will fit most engines including Evinrude, Honda, Johnson, Mercury, Mariner, Suzuki, Tohatsu, Nissan, Selva and Yamaha. The number of  wheel turns 4.3 from lock to lock.

The kit comes packaged with all the required parts to fit to your boat including a helm pump, outboard engine cylinder, two litres of hydraulic oil - hose kits sold separately.

The UC128-OBF front mount cylinder is not recommended for use in installations where the boat speed exceeds 55 mph (48 knots) (65 mph (56 knots) in dual engine, dual cylinder
and counter rotating engines application). Not intended for use in racing applications.

Nautech OBF Hydraulic Steering Kit Contains:

• 1x UC128-OBF front mount outboard cylinder. See engine application guide below
• 1x UP28F front mount helm pump
• 2x OL150 Hydraulic Steering Oil 1L bottles

UC128-OBF Cylinder Specifications:

• Volume: 120 cc - 7.3 cu.in
• Output force: 450kg (992 lbs)
• Internal diameter: 35mm (1.37")
• Stroke: 185 mm (7.28”)
• 3/8” (9.5mm) Fittings for high pressure flex hose
• Bleed fittings: DN5 Quick connect

Splashwell Dimension Requirements

• A (mm)
  • 1 engine - 560mm
  • 2 engine - 1,110mm
• B (mm)
  • 1 engine - 152mm
  • 2 engine - 152mm
• C (mm)
  • 1 engine - 152mm
  • 2 engine - 152mm

*Note: For twin engine applications, the minimum distance between the two engine centres is 650mm.