Ultraflex Nautech 2 Hydraulic Steering For Outboard Max 300hp

"Ultraflex Nautech 2 is hydraulic steering for boats and dinghies, suitable for outboard engines over 150HP and up to 300Hp of power, it uses a balanced center-mounted cylinder (requires an equal number of revolutions from half-stroke to end-of-stroke 4.7 revolutions to left, 4.7 turns right).

The NAUTECH 2 kit includes:

- Ultraflex front mount pump for UP28F hydraulic steering
-Compact structure
- Axial piston system
- Equipped with a non-return valve that prevents reversibility
- Integrated overpressure protection valve
- 3/4 ”tapered shaft in stainless steel
- Non-return valve and shaft seal easily accessible in case of replacement
-Rotor built in cast iron for a longer life
-Complete with 90 ° adjustable fittings for 3/8 "(9.5 mm) pipe

Pump model: UP28F
Ultraflex code: 42459R
Mounting: Front
Capacity / Revolution: 28 cc - 1.7 cu.in
Number of pistons: 5
Overpressure Valves Calibration: 70 Bar - 1000 PSI
Max diameter of the steering wheel: 710 mm - 28 "
Weight: 5 Kg

Cylinder model: UC128-OBF - Balanced: equal number of revolutions from half-stroke to full-stroke
Adjustable fittings for ease of installation, high-strength stainless steel connection bolt (ULTRABOLT)
The UC128 cylinder, built with high quality materials, including the stainless steel rod, the gaskets and
high strength connecting arms, it has been designed for a long life. It is easy to
install and is compatible with almost all 2 and 4 stroke outboard engines on the market.
Recommended for engines up to 300HP.

The UC128-OBF / 2 cylinder is compatible with the following Outboard engines:

EVINRUDE
E75-E90 2T Year 2004-present
E115-E130-E135 2T V4 Year 1995-to present
E150-E175-E200 2T V6 Year 1995-present
E200 HO- E225-E250 2T V6 Year 1995-present
E250 HO- E300 2T V6 Year

YAMAHA
75C-90 2T Year 1998-2008
115C-130B 2T Year 1990-2008
150F-200F-250G 2T Year 1996-2007
150 HPDI VMAX 2T Year 2000-2008
175-200-225-250-300 HPDI VMAX 2T Year 2000-2008
F200-F225-F250 4T Year 2002-2007

SUZUKI
DF70-80-90 4T Year 1998-today
DF200-DF225-DF250-DF300 Year

TOHATSU
115-120-140 2T Year 2004-present

SELVA
100EFI Marlin -115 EFI Narwhal- Year 2001-2007

JOHNSON
J90-115 V4 2T Year 1995-2007
J150-175 V6 2T Year 1995-2007
J200-225 V6 4T Year 2004-2007

ATTENTION
The diagram above is to be considered only indicative and however requires careful verification by the installer.



To complete the system, the following products must be purchased separately, which are NOT INCLUDED in the kit:

A ULTRAFLEX KIT OB piping kit with pre-assembled fittings based on the required length, see on our website or click on the accessories tab of this page.

A steering wheel to be selected from those on our site,

See the images to see the dimensions of the components.

Package includes: 1pc Ultraflex UC128-OBF / 2 cylinder with hose connector, 1pc Ultraflex UP28F pump, 2 liters of hydraulic steering oil, Assembly instructions. "