UC128-OBF Outboard Front Mount Hydraulic Cylinders

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Description

For use with outboard engines up to 300HP, the UC128-OBF cylinder is simple to install and fits almost every 2 and 4 stroke outboard engine in the market.

For dual engines, it is necessary to order a standard UC128-OBF cylinder (link arm on the starboard side of the cylinder) and a Port UC128-OBF cylinder (link arm on the port side of the cylinder).

Available in different versions depending on the applications on the outboard engines.

Features:

Heavy duty stainless steel cylinder rod, seals and link assemblies.
Constructed of top grade materials, built to last.
Adjustable boss style fittings for easy installation.
High resistance stainless steel connection bolt.
For outboard engines up to 300HP
Balanced: the number of turns lock-to-lock is equal port to starboard and vice versa
Simple to install
Fits most 2 and 4 stroke outboard engines in the market
The UC128 cylinders are recommended for use with UP25, UP28, UP33 and UP39 series helms and pre-assembled hoses
9.5mm fittings: for high pressure flex hose

Volume	12cc (7.3cu in)
Output Force	450kg
Inside Diameter	35mm
Stroke	185mm (7.28")
Fittings	9.5mm (3/8")
Bleed Fittings	DN5 Quick Connect

Splashwell Dimension Requirements
No. Of Engines	A (mm)	B (mm)	C (mm)
1	560	152	152
2 *	1110	152	152

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

Engine Application Guide

Note: These recommendations should be used as a general reference only.

JPW SKU	Kit	Cylinder
JPW18940	1	UC128-OBF/1
JPW18941	2	UC128-OBF/2
JPW18942	3	UC128-OBF/3

Engine	Power	Year	Kit
Mercury® Mariner®	115-125-150 EFI 2S 225-250 EFI 2S 75-90-115 OPTIMAX 135-150-175 OPTIMAX 200-225-250 OPTIMAX RACING 300 OPTIMAX 100-115 EFI 4T 250 SALTWATER EFI 4S 135-150-175-200 VERADO L4 FOURSTROKE 175-200 V6 FOURSTROKE 225-300 V8	1990-2007 2000-2007 2004-to date 1999-to date 1999-to date 1999-2011 2007-to date 2007-2011 2004-to date 2018-to date 2018-to date	1 1 3 1 1 1 1 1 1 1 1
Evinrude®	E75-E90 2S E115-E130-E135 2S V4 E150-E175-E200-E225-E250-E300 2S V6	2004-to date 1995-to date 1995-to date	2 2 2
Yamaha®	115C-130B 2S 75C-90 2S 115C-130B 2S 150F-200F-250G 2S 150 HPDI VMAX 2S 175-200-225-250-300 HPDI VMAX 2S F115-F150 EFI 4S F200-F225-F250 4S F70 4S F115-F150-F175-F200 L4 4S F200-F225-F250-F300 V6 4S	1990-2008 1998-2008 1990-2008 1996-2007 2000-2008 2000-2008 1999-2007 2002-2007 2010-to date 2004-to date 2004-to date	2 2 2 2 2 2 1 2 1P 1 2
Honda®	BF75-BF90 4S BF115-BF130 4S BF135-BF150 4S BF150 V-TEC 4S BF175-BF200-BF225- BF250 4S	1995-to date 1998-to date 2005-to date 2008-to date 2001-to date	1 3 1 1 1
Suzuki®	DF70-80-90 4T DF100-115-140 4S DF100-115-140 4S DF150-175-DF200 L4 4S DF200-DF225-DF250-DF300-V6 4S	1998-to date 1998-2008 1998-to date 2006-to date 2004-to date	2 1* 1 1 2
Tohatsu®	115-120-140 2S 70-90-115 TLDI 4S BFT60-75-90 4S BFT80-100-115 4S BFT150-200-225-250 4S	2004-to date 2004-to date 2015-to date 2015-to date 2015-to date	2 1 1 3 1
Selve®	80 PORTOFINO/TIGERSHARK 2S 150 WHITE SHARK 2S 100EFI MARLIN -115 EFI NARWHAL- 150EFI KILLER WHALE 4S	1995-2008 2001-2007 2000-to date 2000-to date	1 2 1 1
Johnson®	BJ90-115-140 4S J90-115 V4 2S J150-175 V6 2S J200-225 V6 4S	2001-2007 1995-2007 1995-2007 2004-2007	1 2 2 2

*NOTE: Suzuki® engines built from 1998 to 2008 installing 1 UC128-OBF/1 cylinder require optional KIT SU - 41954W.

UC128-OBF Cylinder Order Guide

System	Application	Wheel Turns	Components
Single Engine / Single Cylinder	Up to 300 hp max	UP25: 4.8 UP28: 4.3	1x UC128-OBF Cylinder 1x UP25 or UP28 Helm Pump 1x KIT-OB Hose Kit 2x OL 150 Oil (1L) 1x Steering wheel (sold separately) For a second station add: 1x UP39 or UP45 Helm Pump, 1x KIT-OB-2S fitting kit, 1x KIT-OB Hose Kit, 1x OL 150 Oil (1L) & 1x steering wheel
Dual Engine / Single Cylinder	Up to 300 hp max (non-counter rotating engine) Up to 500 hp max (counter rotating engine)	UP25: 4.8 UP28: 4.3	1x UC128-OBF Cylinder 1x UP39 or UP45 Helm Pump 1x KIT-OB Hose Kit 2x OL 150 Oil (1L) 1x A90 or A96 Tie Bar 1x Steering Wheel (sold separately) For a second station add: 1x UP39 or UP45 Helm Pump, 1x KIT-OB-2S fitting kit, 1x KIT-OB Hose Kit, 1x OL 150 Oil (1L) & 1x steering wheel
Dual Engine / Dual Cylinder	Up to 500 hp max (non-counter rotating engine) Up to 600 hp max (counter rotating engine)	UP39: 6.1 UP45: 5.3	1x UC128-OBF Cylinder 1x UP128p-OBF Cylinder (Port) 1x UP39 or UP45 Helm Pump 1x KIT-OB Hose Kit 3x OL 150 Oil (1L) 1x A90 or A96 Tie Bar 1x KIT OB-2C Connection Kit 1x Steering Wheel (sold separately) For a second station add: 1x UP39 or UP45 Helm Pump, 1x KIT-OB-2S fitting kit, 1x KIT-OB Hose Kit, 2x T fittings 39502V, 1x OL 150 Oil (1L) & 1x steering wheel

System

Application

Wheel Turns

Components

Single Engine / Single Cylinder

Up to 300 hp max

UP25: 4.8

UP28: 4.3

1x UC128-OBF Cylinder
1x UP25 or UP28 Helm Pump
1x KIT-OB Hose Kit
2x OL 150 Oil (1L)
1x Steering wheel (sold separately)

For a second station add: 1x UP39 or UP45 Helm Pump, 1x KIT-OB-2S fitting kit, 1x KIT-OB Hose Kit, 1x OL 150 Oil (1L) & 1x steering wheel

Dual Engine / Single Cylinder

Up to 300 hp max (non-counter rotating engine)

Up to 500 hp max (counter rotating engine)

UP25: 4.8

UP28: 4.3

1x UC128-OBF Cylinder
1x UP39 or UP45 Helm Pump
1x KIT-OB Hose Kit
2x OL 150 Oil (1L)
1x A90 or A96 Tie Bar
1x Steering Wheel (sold separately)

For a second station add: 1x UP39 or UP45 Helm Pump, 1x KIT-OB-2S fitting kit, 1x KIT-OB Hose Kit, 1x OL 150 Oil (1L) & 1x steering wheel

Dual Engine / Dual Cylinder

Up to 500 hp max (non-counter rotating engine)

Up to 600 hp max (counter rotating engine)

UP39: 6.1

UP45: 5.3

1x UC128-OBF Cylinder
1x UP128p-OBF Cylinder (Port)
1x UP39 or UP45 Helm Pump
1x KIT-OB Hose Kit
3x OL 150 Oil (1L)
1x A90 or A96 Tie Bar
1x KIT OB-2C Connection Kit
1x Steering Wheel (sold separately)

For a second station add: 1x UP39 or UP45 Helm Pump, 1x KIT-OB-2S fitting kit, 1x KIT-OB Hose Kit, 2x T fittings 39502V, 1x OL 150 Oil (1L) & 1x steering wheel

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SKU	JPW-P-JPW18853
Brand	Ultraflex

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Be The First To Review This Product!

Engine Application Guide

UC128-OBF Cylinder Order Guide

UC128-OBF Outboard Front Mount Hydraulic Cylinders

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